New Era for Libraries. A Report from the Iowa Blue Ribbon Task Force on Libraries.

ERIC Educational Resources Information Center

Iowa State Dept. of Cultural Affairs, Des Moines. State Library.

The Director of the Department of Cultural Affairs appointed a task force, to be chaired by the State Librarian of Iowa, to evaluate technologies available for libraries and potential uses for the technologies deemed valuable; discuss problems from the viewpoint of the library user in the establishment of cooperative programs; and develop a…

Biomolecular Force Field Parameterization via Atoms-in-Molecule Electron Density Partitioning.

PubMed

Cole, Daniel J; Vilseck, Jonah Z; Tirado-Rives, Julian; Payne, Mike C; Jorgensen, William L

2016-05-10

Molecular mechanics force fields, which are commonly used in biomolecular modeling and computer-aided drug design, typically treat nonbonded interactions using a limited library of empirical parameters that are developed for small molecules. This approach does not account for polarization in larger molecules or proteins, and the parametrization process is labor-intensive. Using linear-scaling density functional theory and atoms-in-molecule electron density partitioning, environment-specific charges and Lennard-Jones parameters are derived directly from quantum mechanical calculations for use in biomolecular modeling of organic and biomolecular systems. The proposed methods significantly reduce the number of empirical parameters needed to construct molecular mechanics force fields, naturally include polarization effects in charge and Lennard-Jones parameters, and scale well to systems comprised of thousands of atoms, including proteins. The feasibility and benefits of this approach are demonstrated by computing free energies of hydration, properties of pure liquids, and the relative binding free energies of indole and benzofuran to the L99A mutant of T4 lysozyme.

Designing a library: everyone on the same page?

PubMed Central

Ludwig, Logan; Shedlock, James; Watson, Linda; Dahlen, Karen; Jenkins, Carol

2001-01-01

Excerpts are presented from an interview by the Bulletin of the Medical Library Association buildings projects editor with four academic health sciences library directors: one who had recently completed a major library building project and three who were involved in various stages of new building projects. They share their experiences planning for and implementing library-building programs. The interview explores driving forces leading to new library buildings, identifies who should be involved, recalls the most difficult and exciting moments of the building projects, relates what they wished they had known before starting the project, assesses the impact of new library facilities on clients and services, reviews what they would change, and describes forces impacting libraries today and attributes of the twenty-first century library. PMID:11337952

The Veterans Administration library program.

PubMed

Gartland, H J

1968-01-01

The Veterans Administration Library Service is continuously responsive to the information requirements of the agency's policies which provide for the improved care and treatment of veterans through research, education, and clinical programs. At the same time, it participates in the planning of the federal government as a whole in providing library support for health care for the American people. There are both internal and external forces influencing VA hospitals and their libraries. Retirements and consequent recruitment of new people will necessitate a rethinking of the VA library program at the same time as external forces will be affecting the program. These external forces include the application of machines to library services through the development of in-house capabilities coupled with joint-use participation and P.L. 89-785 which provides for the exchange of medical information, sharing of facilities, and cooperative training programs. A conceptual rearrangement of information resources will facilitate attainment of our goals.

High-stringency screening of target-binding partners using a microfluidic device

DOEpatents

Soh, Hyongsok; Lou, Xinhui; Lagally, Eric

2015-12-01

The invention provides a method of screening a library of candidate agents by contacting the library with a target in a reaction mixture under a condition of high stringency, wherein the target includes a tag that responds to a controllable force applied to the tag, and passing the members of the library through a microfluidic device in a manner that exposes the library members to the controllable force, thereby displacing members of the library that are bound to the target relative to their unbound counterparts. Kits and systems for use with the methods of the invention are also provided.

A Potential Theory for the Steady Separated Flow about an Aerofoil Section

DTIC Science & Technology

1988-02-01

Adviser (3 copies Doc Data sheet) Aircraft Maintenance and Flight Trials Unit Director of Naval Aircraft Engineering Director of Naval Air Warfare...Superintendent, Aircraft Maintenance and Repair Army Office Scientific Adviser - Army (Doc Data sheet only) Engineering Development Establishment, Library...Flight Group Library Technical Division Library Director General Aircraft Engineering - Air Force Director General Operational Requirements - Air Force

National Library of Education Advisory Task Force. Briefing Book.

ERIC Educational Resources Information Center

National Library of Education (ED/OERI), Washington, DC.

This briefing book with appendices was prepared for the initial meetings of the National Library of Education Advisory Task Force (NLE/ATF), in March 1996. An agenda for this meeting is included in the briefing book. The first section, "Governing Authorities for NLE and the Advisory Task Force," contains a copy of Public Law 103-227,…

Converting an intranet site to the cloud: using CampusGuides to refresh a library portal.

PubMed

Osterhaus Trzasko, Leah C; Farrell, Ann M; Rethlefsen, Melissa L

2012-01-01

After a major redesign project in 2002, Mayo Clinic Libraries' heavily used intranet portal remained largely static. Library staff were unable to make substantive design changes or introduce tools that would make the content more dynamic. CampusGuides offered a practical, user-friendly, web-based solution to add dynamic content to the library site. A task force was formed both to establish design and style guidelines that would integrate with the library site and to plan the conversion of content to CampusGuides. Converting intranet site content to CampusGuides gave the task force the opportunity to examine, re-imagine, and revitalize site content.

Element Library for Three-Dimensional Stress Analysis by the Integrated Force Method

NASA Technical Reports Server (NTRS)

Kaljevic, Igor; Patnaik, Surya N.; Hopkins, Dale A.

1996-01-01

The Integrated Force Method, a recently developed method for analyzing structures, is extended in this paper to three-dimensional structural analysis. First, a general formulation is developed to generate the stress interpolation matrix in terms of complete polynomials of the required order. The formulation is based on definitions of the stress tensor components in term of stress functions. The stress functions are written as complete polynomials and substituted into expressions for stress components. Then elimination of the dependent coefficients leaves the stress components expressed as complete polynomials whose coefficients are defined as generalized independent forces. Such derived components of the stress tensor identically satisfy homogenous Navier equations of equilibrium. The resulting element matrices are invariant with respect to coordinate transformation and are free of spurious zero-energy modes. The formulation provides a rational way to calculate the exact number of independent forces necessary to arrive at an approximation of the required order for complete polynomials. The influence of reducing the number of independent forces on the accuracy of the response is also analyzed. The stress fields derived are used to develop a comprehensive finite element library for three-dimensional structural analysis by the Integrated Force Method. Both tetrahedral- and hexahedral-shaped elements capable of modeling arbitrary geometric configurations are developed. A number of examples with known analytical solutions are solved by using the developments presented herein. The results are in good agreement with the analytical solutions. The responses obtained with the Integrated Force Method are also compared with those generated by the standard displacement method. In most cases, the performance of the Integrated Force Method is better overall.

Limitations to photosynthesis by proton motive force-induced photosystem II photodamage

PubMed Central

Davis, Geoffry A; Kanazawa, Atsuko; Schöttler, Mark Aurel; Kohzuma, Kaori; Froehlich, John E; Rutherford, A William; Satoh-Cruz, Mio; Minhas, Deepika; Tietz, Stefanie; Dhingra, Amit; Kramer, David M

2016-01-01

The thylakoid proton motive force (pmf) generated during photosynthesis is the essential driving force for ATP production; it is also a central regulator of light capture and electron transfer. We investigated the effects of elevated pmf on photosynthesis in a library of Arabidopsis thaliana mutants with altered rates of thylakoid lumen proton efflux, leading to a range of steady-state pmf extents. We observed the expected pmf-dependent alterations in photosynthetic regulation, but also strong effects on the rate of photosystem II (PSII) photodamage. Detailed analyses indicate this effect is related to an elevated electric field (Δψ) component of the pmf, rather than lumen acidification, which in vivo increased PSII charge recombination rates, producing singlet oxygen and subsequent photodamage. The effects are seen even in wild type plants, especially under fluctuating illumination, suggesting that Δψ-induced photodamage represents a previously unrecognized limiting factor for plant productivity under dynamic environmental conditions seen in the field. DOI: http://dx.doi.org/10.7554/eLife.16921.001 PMID:27697149

Limitations to photosynthesis by proton motive force-induced photosystem II photodamage

DOE PAGES

Davis, Geoffry A.; Kanazawa, Atsuko; Schöttler, Mark Aurel; ...

2016-10-04

The thylakoid proton motive force (pmf) generated during photosynthesis is the essential driving force for ATP production; it is also a central regulator of light capture and electron transfer. We investigated the effects of elevated pmf on photosynthesis in a library of Arabidopsis thaliana mutants with altered rates of thylakoid lumen proton efflux, leading to a range of steady-state pmf extents. We observed the expected pmf-dependent alterations in photosynthetic regulation, but also strong effects on the rate of photosystem II (PSII) photodamage. Detailed analyses indicate this effect is related to an elevated electric field (Δψ) component of the pmf, rathermore » than lumen acidification, which in vivo increased PSII charge recombination rates, producing singlet oxygen and subsequent photodamage. The effects are seen even in wild type plants, especially under fluctuating illumination, suggesting that Δψ-induced photodamage represents a previously unrecognized limiting factor for plant productivity under dynamic environmental conditions seen in the field.« less

Perspectives on academic health sciences libraries in the 1980s: indicators from a Delphi study.

PubMed Central

Matheson, N W

1982-01-01

A Delphi study was undertaken to identify the changes in library roles and functions that the directors of academic health sciences libraries believe will occur over the next decade. The methodology is described and the results are summarized. Two scenarios resulted: one, highly desirable; the other, highly probable. They overlap by 64%. Library directors expect moderate evolutionary changes in the next ten years. Users are perceived to be the force maintaining the status quo, while technology is the force advancing change. The adoption of technology is seen as desirable and within the libraries' span of control. Education and service roles of librarians will expand. Library and institutional priorities are seen as obstacles to change. PMID:7037086

An historical overview of the National Network of Libraries of Medicine, 1985-2015.

PubMed

Speaker, Susan L

2018-04-01

The National Network of Libraries of Medicine (NNLM), established as the Regional Medical Library Program in 1965, has a rich and remarkable history. The network's first twenty years were documented in a detailed 1987 history by Alison Bunting, AHIP, FMLA. This article traces the major trends in the network's development since then: reconceiving the Regional Medical Library staff as a "field force" for developing, marketing, and distributing a growing number of National Library of Medicine (NLM) products and services; subsequent expansion of outreach to health professionals who are unaffiliated with academic medical centers, particularly those in public health; the advent of the Internet during the 1990s, which brought the migration of NLM and NNLM resources and services to the World Wide Web, and a mandate to encourage and facilitate Internet connectivity in the network; and the further expansion of the NLM and NNLM mission to include providing consumer health resources to satisfy growing public demand. The concluding section discusses the many challenges that NNLM staff faced as they transformed the network from a system that served mainly academic medical researchers to a larger, denser organization that offers health information resources to everyone.

Results from Five Task Forces Appointed by the American Council of Learned Societies and the Council on Library and Information Resources. Scholarship, Instruction, and Libraries at the Turn of the Century.

ERIC Educational Resources Information Center

Council on Library and Information Resources, Washington, DC.

The American Council of Learned Societies and the Council on Library and Information Resources appointed 36 scholars, librarians, and leaders of various academic enterprises to five task forces "to consider changes in the process of scholarship and instruction that will result from the use of digital technology and to make recommendations to…

Organizational Change in the Harvard College Library: A Continued Struggle for Redefinition and Renewal.

ERIC Educational Resources Information Center

Lee, Susan

1993-01-01

Chronicles the process of change begun at the Harvard College Library in 1990. Key factors are analyzed, including support from the University Library, Association of Research Libraries, and Council on Library Resources; strong leadership; organizational development; composition of task forces; time frame; concurrent changes; and development of a…

A Library Response to the Massification of Higher Education: The Case of the University of Zambia Library

ERIC Educational Resources Information Center

Kanyengo, Christine Wamunyima

2009-01-01

This paper looks at the challenges that libraries in Africa face in responding to massification of higher education by discussing the University of Zambia library's response in library and information resources provision. As a result of massification of higher education, libraries have been forced not only to employ new and different strategies to…

Bottled SAFT: A Web App Providing SAFT-γ Mie Force Field Parameters for Thousands of Molecular Fluids.

PubMed

Ervik, Åsmund; Mejía, Andrés; Müller, Erich A

2016-09-26

Coarse-grained molecular simulation has become a popular tool for modeling simple and complex fluids alike. The defining aspects of a coarse grained model are the force field parameters, which must be determined for each particular fluid. Because the number of molecular fluids of interest in nature and in engineering processes is immense, constructing force field parameter tables by individually fitting to experimental data is a futile task. A step toward solving this challenge was taken recently by Mejía et al., who proposed a correlation that provides SAFT-γ Mie force field parameters for a fluid provided one knows the critical temperature, the acentric factor and a liquid density, all relatively accessible properties. Building on this, we have applied the correlation to more than 6000 fluids, and constructed a web application, called "Bottled SAFT", which makes this data set easily searchable by CAS number, name or chemical formula. Alternatively, the application allows the user to calculate parameters for components not present in the database. Once the intermolecular potential has been found through Bottled SAFT, code snippets are provided for simulating the desired substance using the "raaSAFT" framework, which leverages established molecular dynamics codes to run the simulations. The code underlying the web application is written in Python using the Flask microframework; this allows us to provide a modern high-performance web app while also making use of the scientific libraries available in Python. Bottled SAFT aims at taking the complexity out of obtaining force field parameters for a wide range of molecular fluids, and facilitates setting up and running coarse-grained molecular simulations. The web application is freely available at http://www.bottledsaft.org . The underlying source code is available on Bitbucket under a permissive license.

Common Bibliographic Standards for Baylor University Libraries. Revised.

ERIC Educational Resources Information Center

Scott, Sharon; And Others

Developed by a Baylor University (Texas) Task Force, the revised policies of bibliographic standards for the university libraries provide formats for: (1) archives and manuscript control; (2) audiovisual media; (3) books; (4) machine-readable data files; (5) maps; (6) music scores; (7) serials; and (8) sound recordings. The task force assumptions…

Library Kiosks: A Balancing Act

ERIC Educational Resources Information Center

Aegard, Joanna

2010-01-01

In 2009, the author spearheaded the Thunder Bay Public Library's (TBPL) service audit on kiosks. A task force comprising staff from the children's, reference, and adult services departments was formed to work on the audit. Task force members worked together and studied how patrons and staff use kiosks, conducted a literature review, surveyed other…

The Library of Congress: Hydra and Dinosaur.

ERIC Educational Resources Information Center

Molz, Kathleen R.

1978-01-01

A review of the book, "The Library of Congress in Perspective: A Volume Based on the Reports of the 1976 Librarians Task Force and Advisory Board Reports," edited by John Y. Cole and published in 1978 (Bowker, 281 pages). The review emphasizes the task force's findings and recommendations. (JPF)

Bringing Up Gopher: Access to Local & Remote Electronic Resources for University Library Users.

ERIC Educational Resources Information Center

Brown, Melvin Marlo; And Others

Some of the administrative and organizational issues in creating a gopher, specifically a library gopher for university libraries, are discussed. In 1993 the Electronic Collections Task Force of the New Mexico State University library administration began to develop a library-based gopher system that would enable users to have unlimited access to…

The Last Word: Magnetic Storm-Still an Adequate Name?

NASA Astrophysics Data System (ADS)

Daglis, Ioannis A.

The magnetic storm is the principal and most complex collective phenomenon in geospace. It involves the magnetic fields of the Sun and the Earth, as well as plasma originating in the solar and terrestrial atmosphere. Magnetic storms involve more than just the geomagnetic field, as the original perception suggests. They involve a variety of dynamic processes among which charged particle acceleration and electric current intensification are the most important. Is the name still adequate, or should we switch to something more general and wide-ranging, such as ``space storms,'' or ``geospace storms''? The oldest printed record of ``magnetic storms'' that I was able to find appears in a letter published in Annalen der Physik written by the famous explorer Alexander von Humboldt to Paul Erman. I located this paper in the amazingly rich library of the Air Force Research Laboratory at Hanscom Air Force Base in Massachusetts with the kind help of Mike Heinemann.

pmx: Automated protein structure and topology generation for alchemical perturbations

PubMed Central

Gapsys, Vytautas; Michielssens, Servaas; Seeliger, Daniel; de Groot, Bert L

2015-01-01

Computational protein design requires methods to accurately estimate free energy changes in protein stability or binding upon an amino acid mutation. From the different approaches available, molecular dynamics-based alchemical free energy calculations are unique in their accuracy and solid theoretical basis. The challenge in using these methods lies in the need to generate hybrid structures and topologies representing two physical states of a system. A custom made hybrid topology may prove useful for a particular mutation of interest, however, a high throughput mutation analysis calls for a more general approach. In this work, we present an automated procedure to generate hybrid structures and topologies for the amino acid mutations in all commonly used force fields. The described software is compatible with the Gromacs simulation package. The mutation libraries are readily supported for five force fields, namely Amber99SB, Amber99SB*-ILDN, OPLS-AA/L, Charmm22*, and Charmm36. PMID:25487359

Reinvention of the Public Library for the 21st Century.

ERIC Educational Resources Information Center

Whitesides, William L., Sr., Ed.

This book, written by graduate students at the Catholic University (District of Columbia) School of Library and Information Science, examines current priorities, policies, and practices of public libraries. Following an introduction, "Reinventing Libraries: Responding to the Forces of Change" (Lisa Crisman), chapters include: (1) "A…

Physics-based scoring of protein-ligand interactions: explicit polarizability, quantum mechanics and free energies.

PubMed

Bryce, Richard A

2011-04-01

The ability to accurately predict the interaction of a ligand with its receptor is a key limitation in computer-aided drug design approaches such as virtual screening and de novo design. In this article, we examine current strategies for a physics-based approach to scoring of protein-ligand affinity, as well as outlining recent developments in force fields and quantum chemical techniques. We also consider advances in the development and application of simulation-based free energy methods to study protein-ligand interactions. Fuelled by recent advances in computational algorithms and hardware, there is the opportunity for increased integration of physics-based scoring approaches at earlier stages in computationally guided drug discovery. Specifically, we envisage increased use of implicit solvent models and simulation-based scoring methods as tools for computing the affinities of large virtual ligand libraries. Approaches based on end point simulations and reference potentials allow the application of more advanced potential energy functions to prediction of protein-ligand binding affinities. Comprehensive evaluation of polarizable force fields and quantum mechanical (QM)/molecular mechanical and QM methods in scoring of protein-ligand interactions is required, particularly in their ability to address challenging targets such as metalloproteins and other proteins that make highly polar interactions. Finally, we anticipate increasingly quantitative free energy perturbation and thermodynamic integration methods that are practical for optimization of hits obtained from screened ligand libraries.

Organizational Futures: Staffing Research Libraries in the 1990s. Minutes of the [Semiannual] Meeting of the Association of Research Libraries (105th, Washington, D.C., October 24-25, 1984).

ERIC Educational Resources Information Center

Association of Research Libraries, Washington, DC.

Program presentations on issues related to staffing considerations in research libraries and business meeting minutes are combined in this report from the Association of Research Libraries (ARL). Under the program title, "Organizational Futures: Staffing Research Libraries in the 1990's," a report by the Task Force on Research Library Staffing…

Libraries Welcome Food amid the Books

ERIC Educational Resources Information Center

Foster, Andrea L.

2008-01-01

People are recognizing that food in the library is an irresistible force. Fed by a desire to make libraries more inviting places for students to work in groups, many colleges are installing cafes in their libraries. Food has always been a part of late-night study gatherings. If eating encourages collaborative learning, the theory goes, let there…

DSMC (Defense Systems Management College) CALS (Computer-Aided Acquisition and Logistics Support) Briefing: Program Manager Course.

DTIC Science & Technology

1988-11-01

library . o Air Force Tech Order Management System - Final Report, library o DLA CALS 1988 Implementation Plan, library . Where to go for Additional...0. ~l l LU; 0. 0 0 2. o 3 0 I) 0 U no V) 4- C 4. U) 00 u c.C0 Cco C Cl) cc m~0-CU . d" CD 0 m mooc Er.C 0 .0> s -w 2 c IM CO (aC wi E 0 r. X 0-0 a 0...as well as wider application. The Air Force AFTOMS Automation Plan, a copy of which is in the library , has excellent discussions of the expected

The Role of the Public Library in Maine: Consumer Needs and Attitudes Towards Public Libraries in Maine.

ERIC Educational Resources Information Center

Little (Arthur D.), Inc., Cambridge, MA.

To assist the Governor's Task Force to study library services in Maine, Arthur D. Little, Inc. was retained to identify the attitudes of the general public toward libraries and how these attitudes affect library use. A series of four panel discussions was conducted; a survey of the general public was made; data was orally presented; and a workshop…

An Identification of Problems Relating to Federal Procurement of Library Materials Prepared for Commission on Government Procurement.

ERIC Educational Resources Information Center

Federal Library Committee, Washington, DC.

The Federal Library Committee through the Task Force on Procurement Procedures in Federal Libraries is examining all problems and is recommending policies, procedures, and practices which will maximize the efficient procurement of library materials. It is suggested that the vehicle for this investigation be the appropriate Commission on Government…

Women's Studies: An Examination of Library Use by Researchers in the Field with Special Reference to the Fawcett Library. Library Research Digest No. 14.

ERIC Educational Resources Information Center

Blagden, Pauline

The Fawcett Library, a collection of international importance in the field of women's studies, faces money, space, and staff time constraints and has been reviewing its acquisitions policy with these factors in mind. This study was undertaken to gain insight into (1) library use in general by researchers in the field of women's studies, and (2)…

At the Threshold of a Library Network.

ERIC Educational Resources Information Center

Khalid, Farooq A.

1996-01-01

Highlights both the benefits and the problems associated with networking in libraries and discusses circumstances that are forcing information centers in the Arabian Gulf region to begin thinking about library networking. Topics include governing models, resource sharing, timeliness, cost effectiveness, currency, reliability, and a union catalog…

[RNA interference library research progress and its application in cancer research].

PubMed

Zhao, Ning; Cai, Li

2013-02-01

RNA interference is a homologous mRNA special degradation phenomenon which is caused by the double-stranded RNA. RNAi library is a pooled library that is artificially constructed using RNAi technology. As RNAi library has made a major breakthrough in the field of genetic research, it has been widely used in the field of medical research, especially in the field of cancer research. This review discussed the research progress of RNAi library and its applications in cancer research.

Phantom-GRAPE: Numerical software library to accelerate collisionless N-body simulation with SIMD instruction set on x86 architecture

NASA Astrophysics Data System (ADS)

Tanikawa, Ataru; Yoshikawa, Kohji; Nitadori, Keigo; Okamoto, Takashi

2013-02-01

We have developed a numerical software library for collisionless N-body simulations named "Phantom-GRAPE" which highly accelerates force calculations among particles by use of a new SIMD instruction set extension to the x86 architecture, Advanced Vector eXtensions (AVX), an enhanced version of the Streaming SIMD Extensions (SSE). In our library, not only the Newton's forces, but also central forces with an arbitrary shape f(r), which has a finite cutoff radius rcut (i.e. f(r)=0 at r>rcut), can be quickly computed. In computing such central forces with an arbitrary force shape f(r), we refer to a pre-calculated look-up table. We also present a new scheme to create the look-up table whose binning is optimal to keep good accuracy in computing forces and whose size is small enough to avoid cache misses. Using an Intel Core i7-2600 processor, we measure the performance of our library for both of the Newton's forces and the arbitrarily shaped central forces. In the case of Newton's forces, we achieve 2×109 interactions per second with one processor core (or 75 GFLOPS if we count 38 operations per interaction), which is 20 times higher than the performance of an implementation without any explicit use of SIMD instructions, and 2 times than that with the SSE instructions. With four processor cores, we obtain the performance of 8×109 interactions per second (or 300 GFLOPS). In the case of the arbitrarily shaped central forces, we can calculate 1×109 and 4×109 interactions per second with one and four processor cores, respectively. The performance with one processor core is 6 times and 2 times higher than those of the implementations without any use of SIMD instructions and with the SSE instructions. These performances depend only weakly on the number of particles, irrespective of the force shape. It is good contrast with the fact that the performance of force calculations accelerated by graphics processing units (GPUs) depends strongly on the number of particles. Substantially weak dependence of the performance on the number of particles is suitable to collisionless N-body simulations, since these simulations are usually performed with sophisticated N-body solvers such as Tree- and TreePM-methods combined with an individual timestep scheme. We conclude that collisionless N-body simulations accelerated with our library have significant advantage over those accelerated by GPUs, especially on massively parallel environments.

PyVCI: A flexible open-source code for calculating accurate molecular infrared spectra

NASA Astrophysics Data System (ADS)

Sibaev, Marat; Crittenden, Deborah L.

2016-06-01

The PyVCI program package is a general purpose open-source code for simulating accurate molecular spectra, based upon force field expansions of the potential energy surface in normal mode coordinates. It includes harmonic normal coordinate analysis and vibrational configuration interaction (VCI) algorithms, implemented primarily in Python for accessibility but with time-consuming routines written in C. Coriolis coupling terms may be optionally included in the vibrational Hamiltonian. Non-negligible VCI matrix elements are stored in sparse matrix format to alleviate the diagonalization problem. CPU and memory requirements may be further controlled by algorithmic choices and/or numerical screening procedures, and recommended values are established by benchmarking using a test set of 44 molecules for which accurate analytical potential energy surfaces are available. Force fields in normal mode coordinates are obtained from the PyPES library of high quality analytical potential energy surfaces (to 6th order) or by numerical differentiation of analytic second derivatives generated using the GAMESS quantum chemical program package (to 4th order).

Library Users: How They Adapt to Changing Roles.

ERIC Educational Resources Information Center

Miido, Helis

Traditional library tasks, for example database searching, are increasingly performed by library users, forcing both the librarian and the user to assume at times dichotomous roles of teacher and student. Modern librarians install new software and guide organizations in multimedia applications. Librarians need to be cognizant of the human factor,…

Analysis Systems for Air Force Missions.

DTIC Science & Technology

1987-02-28

satisfying requirements in a cost effective manner. Subroutine libraries were developed for use in the overall systems. These libraries allow for the...anomalies occur or requirements change. A library of HILAT routines has been developed which is used by all processing routines as necessary. Upon...the AIM data were directly applied to the AIRS. Moreover, many of the computer modules in the HILAT library of subroutines have direct application

Library Resources for International Education. A Report Submitted by the Task Force on Library and Information Resources to the Government/Academic Interface Committee, International Education Project, American Council on Education. Occasional Paper No. 1.

ERIC Educational Resources Information Center

American Council on Education, Washington, DC. International Education Project.

The purpose of this study is to consider methods for providing adequate library and information services for U. S. international education programs. The state of U.S. library resources for the following eight world-area programs was reviewed to determine common library needs and problems: Africa, East Asia, Latin America, Middle East, South Asia,…

The World of Audiovisual Education: Its Impact on Libraries and Librarians.

ERIC Educational Resources Information Center

Ely, Donald P.

As the field of educational technology developed, the field of library science became increasingly concerned about audiovisual media. School libraries have made significant developments in integrating audiovisual media into traditional programs, and are becoming learning resource centers with a variety of media; academic and public libraries are…

Rising Costs and Dwindling Budgets Force Libraries to Make Damaging Cuts in Collections and Services.

ERIC Educational Resources Information Center

Nicklin, Julie L.

1992-01-01

Financial pressures brought on by economic recession and increasing costs of academic materials are causing academic libraries to cancel journal subscriptions, reduce book orders, neglect book preservation, cut staff positions, and reduce general services while seeking new revenue sources. Examples of libraries cutting back include those at…

Job Sharing: Is It in Your Future?

ERIC Educational Resources Information Center

Russell, Thyra K.

This paper reports the results of a survey of 1,277 libraries in Illinois which investigated the status of job sharing in armed forces, college and university, community college, government, law, medical, public, religious, and special libraries and library systems. Job sharing is described as the division of one full-time job between two or more…

Library Instruction Programs; A Wisconsin Directory.

ERIC Educational Resources Information Center

Stoffle, Carla J., Ed.; Chernik, Suzanne, Ed.

Compiled from a survey by the Task Force on Instruction in Academic Libraries of the Wisconsin Association of Academic Librarians, this directory lists 62 institutions of higher education in Wisconsin which offer some form of instruction in library use. Schools are listed by instruction provided, teaching methods used, types of print and non-print…

Transferable Reactive Force Fields: Extensions of ReaxFF-lg to Nitromethane.

PubMed

Larentzos, James P; Rice, Betsy M

2017-03-09

Transferable ReaxFF-lg models of nitromethane that predict a variety of material properties over a wide range of thermodynamic states are obtained by screening a library of ∼6600 potentials that were previously optimized through the Multiple Objective Evolutionary Strategies (MOES) approach using a training set that included information for other energetic materials composed of carbon, hydrogen, nitrogen, and oxygen. Models that best match experimental nitromethane lattice constants at 4.2 K and 1 atm are evaluated for transferability to high-pressure states at room temperature and are shown to better predict various liquid- and solid-phase structural, thermodynamic, and transport properties as compared to the existing ReaxFF and ReaxFF-lg parametrizations. Although demonstrated for an energetic material, the library of ReaxFF-lg models is supplied to the scientific community to enable new research explorations of complex reactive phenomena in a variety of materials research applications.

Flow field of flexible flapping wings

NASA Astrophysics Data System (ADS)

Sallstrom, Erik

The agility and maneuverability of natural fliers would be desirable to incorporate into engineered micro air vehicles (MAVs). However, there is still much for engineers to learn about flapping flight in order to understand how such vehicles can be built for efficient flying. The goal of this study is to develop a methodology for capturing high quality flow field data around flexible flapping wings in a hover environment and to interpret it to gain a better understanding of how aerodynamic forces are generated. The flow field data was captured using particle image velocimetry (PIV) and required that measurements be taken around a repeatable flapping motion to obtain phase-averaged data that could be studied throughout the flapping cycle. Therefore, the study includes the development of flapping devices with a simple repeatable single degree of freedom flapping motion. The acquired flow field data has been examined qualitatively and quantitatively to investigate the mechanisms behind force production in hovering flight and to relate it to observations in previous research. Specifically, the flow fields have been investigated around a rigid wing and several carbon fiber reinforced flexible membrane wings. Throughout the whole study the wings were actuated with either a sinusoidal or a semi-linear flapping motion. The semi-linear flapping motion holds the commanded angular velocity nearly constant through half of each half-stroke while the sinusoidal motion is always either accelerating or decelerating. The flow fields were investigated by examining vorticity and vortex structures, using the Q criterion as the definition for the latter, in two and three dimensions. The measurements were combined with wing deflection measurements to demonstrate some of the key links in how the fluid-structure interactions generated aerodynamic forces. The flow fields were also used to calculate the forces generated by the flapping wings using momentum balance methods which yielded details of where along the wing the forces were generated. As expected, these results indicated that the spanwise location of where the forces were generated depended upon the wings membrane material and reinforcement pattern, but in general it was in the outer third of the wing. (Full text of this dissertation may be available via the University of Florida Libraries web site. Please check http://www.uflib.ufl.edu/etd.html)

The Whole Library Handbook 3: Current Data, Professional Advice, and Curiosa about Libraries and Library Services.

ERIC Educational Resources Information Center

Eberhart, George M., Comp.

This handbook contains articles, guidelines, and other information from the field of library science organized into the following chapters: (1) "Libraries," including some basic figures, academic libraries, public libraries, school libraries, special libraries, national libraries, state libraries, small libraries, facilities, the past, and the…

Block copolymer libraries: modular versatility of the macromolecular Lego system.

PubMed

Lohmeijer, Bas G G; Wouters, Daan; Yin, Zhihui; Schubert, Ulrich S

2004-12-21

The synthesis and characterization of a new 4 x 4 library of block copolymers based on polystyrene and poly(ethylene oxide) connected by an asymmetrical octahedral bis(terpyridine) ruthenium complex at the block junction are described, while initial studies on the thin film morphology of the components of the library are presented by the use of Atomic Force Microscopy, demonstrating the impact of a library approach to derive structure-property relationships.

Strategic Plan for Indiana State University Libraries: 1987-1992.

ERIC Educational Resources Information Center

Ensor, Pat; And Others

This task force report outlines a five-year strategic plan for the Indiana State University Library. The plan discusses expected changes and provides recommendations as to how to best meet new needs in eight areas: (1) the environment, including financial support, use of library resources, and changes in the composition of the user group; (2) user…

Leveraging Technology for Success in a Challenging Economy

ERIC Educational Resources Information Center

Breeding, Marshall

2010-01-01

The global economic crisis of the past 2 years has brought harsh circumstances to most libraries, calling into question many of the ways that librarians allocate resources. Lean budgets force libraries to devise strategies that make the very most of the resources available. Many libraries face the reality of doing more with less, often much less.…

The Practice and Promise of Critical Information Literacy: Academic Librarians' Involvement in Critical Library Instruction

ERIC Educational Resources Information Center

Tewell, Eamon C.

2018-01-01

Critical information literacy is a way of thinking and teaching that examines the social construction and political dimensions of libraries and information, problematizing information's production and use so that library users may think critically about such forces. Being an educational approach that acknowledges and emboldens learners' agency,…

Plan for a Statewide On-Line Information System for Libraries (MnLINK).

ERIC Educational Resources Information Center

Minnesota State Dept. of Education, St. Paul.

The 1996 Legislature directed the Minnesota Higher Education Services Office (HESO), in cooperation with the Library Planning Task Force to, "create a plan and process to develop a statewide on-line information system for libraries"; this memo with attached information was submitted in fulfillment of that request. The name chosen for the…

Evolution of Reference: A New Service Model for Science and Engineering Libraries

ERIC Educational Resources Information Center

Bracke, Marianne Stowell; Chinnaswamy, Sainath; Kline, Elizabeth

2008-01-01

This article explores the different steps involved in adopting a new service model at the University of Arizona Science-Engineering Library. In a time of shrinking budgets and changing user behavior the library was forced to rethink it reference services to be cost effective and provide quality service at the same time. The new model required…

How to Be Engaging: Recreational Reading and Readers' Advisory in the Academic Library

ERIC Educational Resources Information Center

Nicholson, Heather

2012-01-01

While recreational reading material was once an integral part of the academic library collection and librarians were seen as guides in reading development for students, this has not been the case in the last 50 years. Fiscal constraints have forced library professionals to make choices so that leisure reading material has not been viewed as a high…

The Research Library's Role in Digital Repository Services: Final Report of the ARL Digital Repository Issues Task Force

ERIC Educational Resources Information Center

Association of Research Libraries, 2009

2009-01-01

Libraries are making diverse contributions to the development of many types of digital repositories, particularly those housing locally created digital content, including new digital objects or digitized versions of locally held works. In some instances, libraries are managing a repository and its related services entirely on their own, but often…

The Medical Library Association Benchmarking Network: development and implementation.

PubMed

Dudden, Rosalind Farnam; Corcoran, Kate; Kaplan, Janice; Magouirk, Jeff; Rand, Debra C; Smith, Bernie Todd

2006-04-01

This article explores the development and implementation of the Medical Library Association (MLA) Benchmarking Network from the initial idea and test survey, to the implementation of a national survey in 2002, to the establishment of a continuing program in 2004. Started as a program for hospital libraries, it has expanded to include other nonacademic health sciences libraries. The activities and timelines of MLA's Benchmarking Network task forces and editorial board from 1998 to 2004 are described. The Benchmarking Network task forces successfully developed an extensive questionnaire with parameters of size and measures of library activity and published a report of the data collected by September 2002. The data were available to all MLA members in the form of aggregate tables. Utilization of Web-based technologies proved feasible for data intake and interactive display. A companion article analyzes and presents some of the data. MLA has continued to develop the Benchmarking Network with the completion of a second survey in 2004. The Benchmarking Network has provided many small libraries with comparative data to present to their administrators. It is a challenge for the future to convince all MLA members to participate in this valuable program.

The Medical Library Association Benchmarking Network: development and implementation*

PubMed Central

Dudden, Rosalind Farnam; Corcoran, Kate; Kaplan, Janice; Magouirk, Jeff; Rand, Debra C.; Smith, Bernie Todd

2006-01-01

Objective: This article explores the development and implementation of the Medical Library Association (MLA) Benchmarking Network from the initial idea and test survey, to the implementation of a national survey in 2002, to the establishment of a continuing program in 2004. Started as a program for hospital libraries, it has expanded to include other nonacademic health sciences libraries. Methods: The activities and timelines of MLA's Benchmarking Network task forces and editorial board from 1998 to 2004 are described. Results: The Benchmarking Network task forces successfully developed an extensive questionnaire with parameters of size and measures of library activity and published a report of the data collected by September 2002. The data were available to all MLA members in the form of aggregate tables. Utilization of Web-based technologies proved feasible for data intake and interactive display. A companion article analyzes and presents some of the data. MLA has continued to develop the Benchmarking Network with the completion of a second survey in 2004. Conclusions: The Benchmarking Network has provided many small libraries with comparative data to present to their administrators. It is a challenge for the future to convince all MLA members to participate in this valuable program. PMID:16636702

The Effect of Major Fields of Study on Student Demand for Library Books. AIR 1983 Annual Forum Paper.

ERIC Educational Resources Information Center

Russell, Ralph E.; And Others

The relationship between student demand for library books by subject area and the students' majors and courses undertaken was studied using a library's automated circulation system. During 1980-1982, book checkout at the university library declined 22 percent. History had the greatest decline in checkouts per student. Other fields with larger…

Business Libraries in New York State. A Brief Guide for Business, Professional, and Research Users. Revised.

ERIC Educational Resources Information Center

Beach, Alta, Comp.

Designed to help business firms, corporations, researchers, and others identify libraries with major collections in the fields related to business that are accessible to the public, this brochure may also inform library staff of sources of information in the field for their own networking and for referrals of library users. An expanded and updated…

Prediction of Stereochemistry using Q2MM

PubMed Central

2016-01-01

Conspectus The standard method of screening ligands for selectivity in asymmetric, transition metal-catalyzed reactions requires experimental testing of hundreds of ligands from ligand libraries. This “trial and error” process is costly in terms of time as well as resources and, in general, is scientifically and intellectually unsatisfying as it reveals little about the underlying mechanism behind the selectivity. The accurate computational prediction of stereoselectivity in enantioselective catalysis requires adequate conformational sampling of the selectivity-determining transition state but has to be fast enough to compete with experimental screening techniques to be useful for the synthetic chemist. Although electronic structure calculations are accurate and general, they are too slow to allow for sampling or fast screening of ligand libraries. The combined requirements can be fulfilled by using appropriately fitted transition state force fields (TSFFs) that represent the transition state as a minimum and allow fast conformational sampling using Monte Carlo. Quantum-guided molecular mechanics (Q2MM) is an automated force field parametrization method that generates accurate, reaction-specific TSFFs by fitting the functional form of an arbitrary force field using only electronic structure calculations by minimization of an objective function. A key feature that distinguishes the Q2MM method from many other automated parametrization procedures is the use of the Hessian matrix in addition to geometric parameters and relative energies. This alleviates the known problems of overfitting of TSFFs. After validation of the TSFF by comparison to electronic structure results for a test set and available experimental data, the stereoselectivity of a reaction can be calculated by summation over the Boltzman-averaged relative energies of the conformations leading to the different stereoisomers. The Q2MM method has been applied successfully to perform virtual ligand screens on a range of transition metal-catalyzed reactions that are important from both an industrial and an academic perspective. In this Account, we provide an overview of the continued improvement of the prediction of stereochemistry using Q2MM-derived TSFFs using four examples from different stages of development: (i) Pd-catalyzed allylation, (ii) OsO4-catalyzed asymmetric dihydroxylation (AD) of alkenes, (iii) Rh-catalyzed hydrogenation of enamides, and (iv) Ru-catalyzed hydrogenation of ketones. In the current form, correlation coefficients of 0.8–0.9 between calculated and experimental ee values are typical for a wide range of substrate–ligand combinations, and suitable ligands can be predicted for a given substrate with ∼80% accuracy. Although the generation of a TSFF requires an initial effort and will therefore be most useful for widely used reactions that require frequent screening campaigns, the method allows for a rapid virtual screen of large ligand libraries to focus experimental efforts on the most promising substrate–ligand combinations. PMID:27064579

WHOI and SIO (I): Next Steps toward Multi-Institution Archiving of Shipboard and Deep Submergence Vehicle Data

NASA Astrophysics Data System (ADS)

Detrick, R. S.; Clark, D.; Gaylord, A.; Goldsmith, R.; Helly, J.; Lemmond, P.; Lerner, S.; Maffei, A.; Miller, S. P.; Norton, C.; Walden, B.

2005-12-01

The Scripps Institution of Oceanography (SIO) and the Woods Hole Oceanographic Institution (WHOI) have joined forces with the San Diego Supercomputer Center to build a testbed for multi-institutional archiving of shipboard and deep submergence vehicle data. Support has been provided by the Digital Archiving and Preservation program funded by NSF/CISE and the Library of Congress. In addition to the more than 92,000 objects stored in the SIOExplorer Digital Library, the testbed will provide access to data, photographs, video images and documents from WHOI ships, Alvin submersible and Jason ROV dives, and deep-towed vehicle surveys. An interactive digital library interface will allow combinations of distributed collections to be browsed, metadata inspected, and objects displayed or selected for download. The digital library architecture, and the search and display tools of the SIOExplorer project, are being combined with WHOI tools, such as the Alvin Framegrabber and the Jason Virtual Control Van, that have been designed using WHOI's GeoBrowser to handle the vast volumes of digital video and camera data generated by Alvin, Jason and other deep submergence vehicles. Notions of scalability will be tested, as data volumes range from 3 CDs per cruise to 200 DVDs per cruise. Much of the scalability of this proposal comes from an ability to attach digital library data and metadata acquisition processes to diverse sensor systems. We are able to run an entire digital library from a laptop computer as well as from supercomputer-center-size resources. It can be used, in the field, laboratory or classroom, covering data from acquisition-to-archive using a single coherent methodology. The design is an open architecture, supporting applications through well-defined external interfaces maintained as an open-source effort for community inclusion and enhancement.

Monte Carlo Determination of Gamma Ray Exposure from a Homogeneous Ground Plane

DTIC Science & Technology

1990-03-01

A HOMOGENEOUS GROUND PLANE SOURCE THESIS Presented to the Faculty of the School of Engineering of the Air Force Institute of Technology Air University...come from a standard ANISN format library called FEWG1-85. This state-of-the- art cross section library which contains 37 neutron energy groups and 21...purpose. The FEWGl library, a state-of-the- art cross section library developed for the Defense Nuclear Agency con- sisting of 21 gamma-ray enerQj

Force-field functor theory: classical force-fields which reproduce equilibrium quantum distributions

PubMed Central

Babbush, Ryan; Parkhill, John; Aspuru-Guzik, Alán

2013-01-01

Feynman and Hibbs were the first to variationally determine an effective potential whose associated classical canonical ensemble approximates the exact quantum partition function. We examine the existence of a map between the local potential and an effective classical potential which matches the exact quantum equilibrium density and partition function. The usefulness of such a mapping rests in its ability to readily improve Born-Oppenheimer potentials for use with classical sampling. We show that such a map is unique and must exist. To explore the feasibility of using this result to improve classical molecular mechanics, we numerically produce a map from a library of randomly generated one-dimensional potential/effective potential pairs then evaluate its performance on independent test problems. We also apply the map to simulate liquid para-hydrogen, finding that the resulting radial pair distribution functions agree well with path integral Monte Carlo simulations. The surprising accessibility and transferability of the technique suggest a quantitative route to adapting Born-Oppenheimer potentials, with a motivation similar in spirit to the powerful ideas and approximations of density functional theory. PMID:24790954

Academic Job Placements in Library and Information Science Field: A Case Study Performed on ALISE Web-Based Postings

ERIC Educational Resources Information Center

Abouserie, Hossam Eldin Mohamed Refaat

2010-01-01

The study investigated and analyzed the state of academic web-based job announcements in Library and Information Science Field. The purpose of study was to get in depth understanding about main characteristics and trends of academic job market in Library and Information science field. The study focused on web-based version announcement as it was…

New Trends in Medical Libraries in Hospitals *

PubMed Central

Gartland, Henry J.

1971-01-01

External and internal forces affecting medical library services are examined. Public Law 89-239, the Heart, Cancer and Stroke Amendments of 1965, and Public Law 89-291, the Medical Library Assistance Act of 1965 which was extended by Public Law 91-212 have an impact on medical libraries. The Veterans Administration relationships with primary beneficiaries of these laws are explained. Internally, effort has been expended through automation, networking, and extension of resources by amalgamation of books and audiovisuals to evolve responsive concepts with emphasis on independence through interdependence. The Veterans Administration Library Service plans and accomplishments in these areas are reviewed. PMID:4932204

LGBTQ Collection Assessment: Library Ownership of Resources Cited by Master's Students

ERIC Educational Resources Information Center

Graziano, Vince

2016-01-01

Lesbian, Gay, Bisexual, Transgender and Queer (LGBTQ) Studies and the broader discipline of sexuality studies are multidisciplinary fields that require a different approach to collection development in academic libraries. Many library collections budgets reflect the traditional divisions by academic department, and multidisciplinary fields often…

Marketing Information Literacy

ERIC Educational Resources Information Center

Seale, Maura

2013-01-01

In 2012, more than a decade after the original Association of College and Research Libraries (ACRL) Information Literacy Competency Standards for Higher Education (hereafter the Standards) were institutionalized as the goal of academic library instruction, the Information Literacy Competency Standards Review Task Force convened by ACRL recommended…

The Mendeleev-Meyer force project.

PubMed

Santos, Sergio; Lai, Chia-Yun; Amadei, Carlo A; Gadelrab, Karim R; Tang, Tzu-Chieh; Verdaguer, Albert; Barcons, Victor; Font, Josep; Colchero, Jaime; Chiesa, Matteo

2016-10-14

Here we present the Mendeleev-Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints rather than atomic number or electronic configuration as in the periodic table. The process is divided into: (1) acquiring nanoscale force data from materials, (2) parameterizing the raw data into standardized input features to generate a library, (3) feeding the standardized library into an algorithm to generate, enhance or exploit a model to identify a material or property. We propose producing databases mimicking the Materials Genome Initiative, the Medical Literature Analysis and Retrieval System Online (MEDLARS) or the PRoteomics IDEntifications database (PRIDE) and making these searchable online via search engines mimicking Pubmed or the PRIDE web interface. A prototype exploiting deep learning algorithms, i.e. multilayer neural networks, is presented.

Virtual Reality and the Virtual Library.

ERIC Educational Resources Information Center

Oppenheim, Charles

1993-01-01

Explains virtual reality, including proper and improper uses of the term, and suggests ways that libraries might be affected by it. Highlights include elements of virtual reality systems; possible virtual reality applications, including architecture, the chemical industry, transport planning, armed forces, and entertainment; and the virtual…

Making Our Buildings Safer: Security Management and Equipment Issues.

ERIC Educational Resources Information Center

Clark, James H.

1997-01-01

Discusses three major components of library security: physical security of the environment; operating procedures for library staff, the public, and security personnel; and a contract security force (or campus security in academic institutions.) Topics include risk management; maintenance; appropriate technology, including security systems and…

Health sciences libraries: strategies in an era of changing economics.

PubMed Central

Messerle, J

1987-01-01

Libraries in health care settings reflect their parent institutions, which, in turn, are affected by environmental changes. The economic climate of the 1980s, unleashing competitive forces and threatening the survival of some institutions, has had a major impact on both hospitals and academic health centers. The challenge to libraries of these institutions calls for reassessment of programs and realignment in their power structures. It is argued that libraries which position themselves to capitalize on the current economic environment will create a future with new opportunities. PMID:3828607

Adult Services in the Third Millennium.

ERIC Educational Resources Information Center

Monroe, Margaret E.

1979-01-01

Presents a four-step model for "planning" or "forecasting" future of adult services in public libraries: (1) identification of forces at work; (2) analysis of probable impacts of one force upon another; (3) identification of preferred (and rejected) elements of future with forces that control elements; and (4) strategies to be…

An Investigation of the Educational Needs of Health Sciences Library Manpower: III. Manpower Supply and Demand in Health Sciences Libraries *

PubMed Central

Rothenberg, Lesliebeth; Kronick, David A.; Rees, Alan M.

1971-01-01

An investigation of the manpower requirements of health sciences libraries and of educational programs appropriate to these manpower needs was begun in March 1968. To date, 4,727 libraries have been identified as being used by 14,000 health sciences institutions and programs. Of this total, 2,628 are hospital libraries; 1,328 are health sciences libraries and collections located outside of hospitals; and 771 are academic or public libraries. Within these libraries some 14,938 persons are directly involved, either full- or part-time, in the delivery of health sciences library services. Of the total work force, 5,861 persons are employed in hospital libraries and 9,077 are employed in health sciences libraries and collections. The ratio between professional and nonprofessional employees is 1:2; professional and nonprofessional status was assigned by the chief librarian. Survey data indicate a 7 percent manpower shortage in positions classified as professional, and a 3 percent shortage in positions classified as nonprofessional. PMID:5542913

Public Libraries as Partners in Youth Development: Lessons and Voices from the Field

ERIC Educational Resources Information Center

Yohalem, Nicole; Pittman, Karen

2003-01-01

"Public Libraries as Partners in Youth Development: Lessons and Voices from the Field," published by the Forum in partnership with the Urban Libraries Council, captures key challenges and lessons learned from an innovative, four-year initiative sponsored by the Wallace-Reader's Digest Funds that awarded six million dollars to nine…

Expanding SLA's World.

ERIC Educational Resources Information Center

Avallone, Susan

1987-01-01

Briefly summarizes topics discussed within the theme of global information access at the annual conference of the Special Libraries Association, including information policy in foreign countries, copyright laws, the impact of library automation on access to information, and findings of a task force on the value of the information professional.…

78. View of radar systems technical publication library, transmitter building ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

78. View of radar systems technical publication library, transmitter building no. 102, second floor. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

Forces. Physical Science in Action[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

Forces are all around. Without them, there would be no movement. In fact, Sir Isaac Newton theorized that a force called inertia actually works to keep things exactly as they are at any given moment! Students will learn about Newton's laws and about how forces affect many aspects of life. With clear demonstrations and a unique hands-on activity,…

The Stars Belong to Everyone: Astronomer and Science Writer Dr. Helen Sawyer Hogg (1905-1993)

NASA Astrophysics Data System (ADS)

Cahill, Maria J.

2011-05-01

University of Toronto astronomer and science writer Helen Sawyer Hogg (President of the AAVSO 1939-41) served her field through research, teaching, and administrative leadership. Additionally, she reached out to students and the public through her Toronto Star newspaper column entitled "With the Stars" for thirty years; she wrote The Stars Belong to Everyone, a book that speaks to a lay audience; she hosted a successful television series entitled Ideas; and she delivered numerous speeches at scientific conferences, professional women's associations, school programs, libraries, and other venues. This paper will illumine her life and the personal and professional forces that influenced her work.

A library of georeferenced photos from the field

NASA Astrophysics Data System (ADS)

Xiao, Xiangming; Dorovskoy, Pavel; Biradar, Chandrashekhar; Bridge, Eli

2011-12-01

A picture is worth a thousand of words, and every day hundreds of scientists, students, and environmentally aware citizens are taking field photos to document their observations of rocks, glaciers, soils, forests, wetlands, croplands, rangelands, livestock, and birds and mammals, as well as important events such as droughts, floods, wildfires, insect emergences, and infectious disease outbreaks. Where are those field photos stored? Can they be shared in a timely fashion to support education, research, and the leisure activities of citizens across the world? What are the financial and intellectual costs if those field photos are lost or not shared? Recently, researchers at the University of Oklahoma developed and released the Global Geo-Referenced Field Photo Library (hereinafter referred to as the Field Photo Library; http://www.eomf.ou.edu/photos/), a Web-based data portal designed for researchers and educators who wish to archive and share field photos from across the world, each tagged with exact positioning data (Figure 1). The data portal has a simple user interface that allows people to upload, query, and download georeferenced field photos in the library.

Library Leadership Engagement for Transformative Academic Library Spaces

ERIC Educational Resources Information Center

Quagliaroli, Sara Elizabeth

2017-01-01

The environment in which higher education institutions are situated has been impacted by a number of disruptive forces since the early 1990s, including acceleration in the capability of information technology (Beagle, 2006; Bennett, 2003; Foster, 2014), changing attitudes about learning pedagogy (Barr & Tagg, 1995), and calls for…

Portals for Undergraduate Subject Searching: Are They Worth It?

ERIC Educational Resources Information Center

Nichols, Jane; Mellinger, Margaret

2007-01-01

In spring 2005, a task force of Oregon State University librarians investigated whether undergraduates would gravitate toward subject portals tentatively named "virtual college libraries." A literature review and Web site inventory shaped our definition of a virtual college library. A preliminary needs assessment consisting of an online…

A Library Communication Audit for the Twenty-First Century

ERIC Educational Resources Information Center

Chalmers, Mardi; Liedtka, Theresa; Bednar, Carol

2006-01-01

This article describes a case study relating to an internal communication audit conducted in a large academic library that assessed existing information channels during a period of organizational change in order to recommend improvements. A communications task force developed and administered a survey instrument and then analyzed data and reported…

Personnel Information Requirements for the Support of Air Force Squadron Commanders’ Information Systems

DTIC Science & Technology

1989-12-01

problem, was the library search procedure. In their book, Research Methods In Librarianship , Charles 24 Busha and Stephen Harter contend library...Planning," Information and Management, 6:11-25 (1983). 5. Busha, Charles H. and Stephen P. Hatter, Research Methods In Librarianship : Techniques and

School Library Nostalgias

ERIC Educational Resources Information Center

Hochman, Jessica

2016-01-01

This paper explores nostalgia as both a limiting cultural force in the lives of school librarians and a practice that can be used to more accurately portray library work. The stereotype of the shushing, lone school librarian, based on restorative nostalgia, is related to a nostalgic oversimplification of the school librarian's historical role.…

Books at Auction: The Art of Deaccessioning.

ERIC Educational Resources Information Center

Model, Peter

1981-01-01

Lack of space and budget cuts force many libraries to weed out books and to be selective in accepting collection bequests. The approach for deciding which books to weed out and whether to dispose of these books through dealers or auctions are decisions private clubs and many libraries must make. (RBF)

Inter-Association Task Force Report on Image.

ERIC Educational Resources Information Center

Special Libraries Association, Washington, DC.

In 1988, the Board of Directors of the Special Libraries Association provided funding to a task force to gather data which would determine how certain segments of society perceive librarians, how librarians view themselves and their colleagues, and to provide recommendations for addressing the issue of image. The task force project consisted of…

Breaking New Ground: The Case for Seed Libraries in the Academic Library

ERIC Educational Resources Information Center

Ingalls, Dana

2017-01-01

Seed libraries are a relatively new innovation in the library field, offering seeds, gardening information, and the opportunity for community and ecological engagement to members. While they are increasingly popular in public libraries, they have not yet established a foothold in academic libraries. This paper defines the nature and role of seed…

Criteria-based evaluation of group 3 level memory telefacsimile equipment for interlibrary loan.

PubMed Central

Bennett, V M; Wood, M S; Malcom, D L

1990-01-01

The Interlibrary Loan, Document Delivery, and Union List Task Force of the Health Sciences Libraries Consortium (HSLC)--with nineteen libraries located in Philadelphia, Pittsburgh, and Hershey, Pennsylvania, and Delaware--accepted the charge of evaluating and recommending for purchase telefacsimile hardware to further interlibrary loan among HSLC members. To allow a thorough and scientific evaluation of group 3 level telefacsimile equipment, the task force identified ninety-six hardware features, which were grouped into nine broad criteria. These features formed the basis of a weighted analysis that identified three final candidates, with one model recommended to the HSLC board. This article details each of the criteria and discusses features in terms of library applications. The evaluation grid developed in the weighted analysis process should aid librarians charged with the selection of level 3 telefacsimile equipment. PMID:2328361

Field Museum of Natural History Library.

ERIC Educational Resources Information Center

Williams, Benjamin W.; Fawcett, W. Peyton

1986-01-01

Founded in 1894 to support museum research, the Field Museum of Natural History Library specializes in fields of anthropology, archaeology, botany, geology, palaeontology, and zoology. A rich serials collection and numerous special collections serve both the scientific community and wider public as noncirculating reference collection and through…

All about Forces & Gravity. Physical Science for Children[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

A force is a push or a pull. In All About Forces and Gravity, kids will join our host on a parasailing adventure to investigate how forces impact and shape everything that happens in the world around us. Learn about gravity and the work of Sir Isaac Newton, the English scientists whose scientific principles forever changed the way people looked at…

Disturbances in the Field: Sexual Harassment and Libraries.

ERIC Educational Resources Information Center

Watstein, Sarah Barbara

1993-01-01

Examines the issue of sexual harassment in the library workplace and library profession. Laws relating to sexual harassment in the library are explored, and the immediate and long-term preventive solutions at the individual, institutional, and association levels are discussed. (KRN)

Strategic Planning for Library Multitype Cooperatives: Samples & Examples. ASCLA Changing Horizons Series #1.

ERIC Educational Resources Information Center

Baughman, Steven A., Ed.; Curry, Elizabeth A., Ed.

As interlibrary cooperation has proliferated in the last several decades, multitype library organizations and systems have emerged as important forces in librarianship. The need for thoughtful and organized strategic planning is an important cornerstone for the success of organizations of all sizes. Part of a project by the Interlibrary…

Libraries Drop Thousands of Journals as Budgets Shrink and Prices Rise.

ERIC Educational Resources Information Center

Nicklin, Julie L.

1991-01-01

University libraries are being forced to cancel subscriptions to thousands of journals, some considered essential to academic research, due to rapidly rising costs. Publishers cite increased publication costs and more articles as the source of increases. Many journals once published by nonprofit organizations have been taken over by profit-seeking…

Legal Information Resources: A Guide for Maryland Libraries.

ERIC Educational Resources Information Center

Miller, Michael S., Ed.

This guidebook and annotated bibliography is designed to provide a basic listing of sources of state (Maryland), federal, and some general law for the non-law library community, and to offer some insight into the suggested approaches for dealing with legal reference inquiries. Listings of contributors and members of the Task Force on Improving…

Technology to the People: Kirsten Thompson--Milwaukee Public Library

ERIC Educational Resources Information Center

Library Journal, 2004

2004-01-01

Considering Kirsten Thompson's career in the Milwaukee Public Library (MPL), it is no surprise that as an undergraduate she studied both computer programming and psychology. The combination is the driving force behind her multiple projects at MPL, which have all focused on bringing technology to users. "Having the computers is great, but you…

The Learning Center

ERIC Educational Resources Information Center

Wernick, Laura

2010-01-01

Since the second century, libraries have been esteemed as keepers of the flame of knowledge and culture. At the stone Library of Celcus, constructed in Turkey in 1100 A.D., for example, 15,000 documents were kept safe from the elements and other destructive forces such as rodents. In places like Celcus, the knowledge of Greek philosophy, Roman…

When Bad Things Happen in Good Libraries: Staff Tools for the '90s and Beyond.

ERIC Educational Resources Information Center

Bangs, Patricia

1998-01-01

A Problem Task Force from the Fairfax County Public Library worked with other county agencies such as the police and social services to redesign a "Problem Behavior Manual" and present a training module for staff to better prepare them to deal with socially ill patrons. (Author/AEF)

The High Cost of Science Journals: A Case Study and Discussion

ERIC Educational Resources Information Center

Rose-Wiles, Lisa M.

2011-01-01

Like many libraries, Seton Hall University Libraries has suffered budget cuts that forced a reduction in serial subscriptions. As science librarian, I report on my efforts to streamline subscriptions and to address the question "Why are science journals so expensive?" Our science journals are significantly more expensive than journals in…

A User-Centered View of Document Delivery and Interlibrary Loan.

ERIC Educational Resources Information Center

Martin, Harry S., III; Kendrick, Curtis L.

1994-01-01

Discusses reasons why libraries are being forced to seek new forms of information storage. A hypothetical scenario of user-initiated document delivery alternatives integrated with a search process used by a professor using the Harvard OnLine Library Information System is presented. Extensive notes elaborate on the process and the technology…

The Future Role of Publishing Services in University Libraries

ERIC Educational Resources Information Center

Walters, Tyler

2012-01-01

This study explores possible futures for university-based library publishing services (LPS) and uses scenario planning as its research method. The study posits that the major force in developing LPS is the level of funding from the host university, with the most uncertain factor being whether faculty will adopt LPS. The study participants…

Library Automation and Facility Planning.

ERIC Educational Resources Information Center

Cohen, Aaron; Cohen, Elaine

This seminar and workbook are designed to aid librarians in planning and designing attractive and efficient libraries in light of the changing technologies of the 1980s. It is based on the premise that the electronic revolution of the 1980s will cause substantial changes in the work force, work processes, and the nature of physical layouts of…

Making Curiosity Accessible: Lynne Cutler--Oakland Public Library

ERIC Educational Resources Information Center

Library Journal, 2004

2004-01-01

Lynne Cutler's driving force is the intense curiosity that led her to audit 24 additional courses while studying librarianship. It is what drives her to make Oakland Public Library's services available to those with disabilities, so that everyone can have "access to all the things in life I treasure, like books, words, music, art,…

Field Encapsulation Library The FEL 2.2 User Guide

NASA Technical Reports Server (NTRS)

Moran, Patrick J.; Henze, Chris; Ellsworth, David

1999-01-01

This document describes version 2.2 of the Field Encapsulation Library (FEL), a library of mesh and field classes. FEL is a library for programmers - it is a "building block" enabling the rapid development of applications by a user. Since FEL is a library intended for code development, it is essential that enough technical detail be provided so that one can make full use of the code. Providing such detail requires some assumptions with respect to the reader's familiarity with the library implementation language, C++, particularly C++ with templates. We have done our best to make the explanations accessible to those who may not be completely C++ literate. Nevertheless, familiarity with the language will certainly help one's understanding of how and why things work the way they do. One consolation is that the level of understanding essential for using the library is significantly less than the level that one should have in order to modify or extend the library. One more remark on C++ templates: Templates have been a source of both joy and frustration for us. The frustration stems from the lack of mature or complete implementations that one has to work with. Template problems rear their ugly head particularly when porting. When porting C code, successfully compiling to a set of object files typically means that one is almost done. With templated C++ and the current state of the compilers and linkers, generating the object files is often only the beginning of the fun. On the other hand, templates are quite powerful. Used judiciously, templates enable more succinct designs and more efficient code. Templates also help with code maintenance. Designers can avoid creating objects that are the same in many respects, but not exactly the same. For example, FEL fields are templated by node type, thus the code for scalar fields and vector fields is shared. Furthermore, node type templating allows the library user to instantiate fields with data types not provided by the FEL authors. This type of flexibility would be difficult to offer without the support of the language. For users who may be having template-related problems, we offer the consolation that support for C++ templates is destined to improve with time. Efforts such as the Standard Template Library (STL) will inevitably drive vendors to provide more thorough, optimized tools for template code development. Furthermore, the benefits will become harder to resist for those who currently subscribe to the least-common-denominator "code it all in C" strategy. May FEL bring you both increased productivity and aesthetic satisfaction.

The Evolution of NxtWave Leaders for 21st-Century Libraries

ERIC Educational Resources Information Center

Howard, Jody K.

2015-01-01

In January 2012, a group of four school library professors attending the ALA Midwinter Meeting were having lunch and discussing various issues related to the school library field. These school library professors agreed that one challenge facing the profession is preparing future leaders. As current school library leaders retire, it is difficult to…

The Total Library *

PubMed Central

Annan, Gertrude L.

1968-01-01

Changing functions and techniques of today's libraries have led to questioning the very substance of the library of the future. Ralph Shaw points out that the total library must be “a living force for the enrichment of mankind.” The Medical Research Library of Brooklyn at its very inauguration is uniquely prepared and equipped to work toward that goal. It imaginatively serves the needs of the immediate area by generous sharing of resources, use of its computerized program, and participation in a state-wide system. The large collection of the Academy of Medicine of Brooklyn offers thousands of volumes for the historian, both great works as highlights of medical achievements and more modest contributions of both early and recent date. The total library must serve as an intellectual resource, as well as a mechanism for the rapid transfer of current information. PMID:5644795

Combining resources, combining forces: regionalizing hospital library services in a large statewide health system.

PubMed

Martin, Heather J; Delawska-Elliott, Basia

2015-01-01

After a reduction in full-time equivalents, 2 libraries in large teaching hospitals and 2 libraries in small community hospitals in a western US statewide health system saw opportunity for expansion through a regional reorganization. Despite a loss of 2/3 of the professional staff and a budgetary decrease of 27% over the previous 3 years, the libraries were able to grow business, usage, awareness, and collections through organizational innovation and improved efficiency. This paper describes the experience--including process, challenges, and lessons learned--of an organizational shift to regionalized services, collections, and staffing. Insights from this process may help similar organizations going through restructuring.

The health sciences librarian in medical education: a vital pathways project task force.

PubMed

Schwartz, Diane G; Blobaum, Paul M; Shipman, Jean P; Markwell, Linda Garr; Marshall, Joanne Gard

2009-10-01

The Medical Education Task Force of the Task Force on Vital Pathways for Hospital Librarians reviewed current and future roles of health sciences librarians in medical education at the graduate and undergraduate levels and worked with national organizations to integrate library services, education, and staff into the requirements for training medical students and residents. Standards for medical education accreditation programs were studied, and a literature search was conducted on the topic of the role of the health sciences librarian in medical education. Expectations for library and information services in current standards were documented, and a draft standard prepared. A comprehensive bibliography on the role of the health sciences librarian in medical education was completed, and an analysis of the services provided by health sciences librarians was created. An essential role and responsibility of the health sciences librarian will be to provide the health care professional with the skills needed to access, manage, and use library and information resources effectively. Validation and recognition of the health sciences librarian's contributions to medical education by accrediting agencies will be critical. The opportunity lies in health sciences librarians embracing the diverse roles that can be served in this vital activity, regardless of accrediting agency mandates.

Factors in Science Journal Cancellation Projects: The Roles of Faculty Consultations and Data

ERIC Educational Resources Information Center

Williamson, Jeanine; Fernandez, Peter; Dixon, Lana

2014-01-01

The economic downturn of 2007-08 forced many academic libraries in the United States to cancel journals. We surveyed life sciences librarians from ARL libraries to find out about their experiences with journal cancellations during 2008-12. Overall, we discovered that two factors were essential in decision-making: faculty consultations and data.…

The accurate particle tracer code

NASA Astrophysics Data System (ADS)

Wang, Yulei; Liu, Jian; Qin, Hong; Yu, Zhi; Yao, Yicun

2017-11-01

The Accurate Particle Tracer (APT) code is designed for systematic large-scale applications of geometric algorithms for particle dynamical simulations. Based on a large variety of advanced geometric algorithms, APT possesses long-term numerical accuracy and stability, which are critical for solving multi-scale and nonlinear problems. To provide a flexible and convenient I/O interface, the libraries of Lua and Hdf5 are used. Following a three-step procedure, users can efficiently extend the libraries of electromagnetic configurations, external non-electromagnetic forces, particle pushers, and initialization approaches by use of the extendible module. APT has been used in simulations of key physical problems, such as runaway electrons in tokamaks and energetic particles in Van Allen belt. As an important realization, the APT-SW version has been successfully distributed on the world's fastest computer, the Sunway TaihuLight supercomputer, by supporting master-slave architecture of Sunway many-core processors. Based on large-scale simulations of a runaway beam under parameters of the ITER tokamak, it is revealed that the magnetic ripple field can disperse the pitch-angle distribution significantly and improve the confinement of energetic runaway beam on the same time.

SURVEY OF OHIO LIBRARIES AND STATE LIBRARY SERVICES. A REPORT TO THE STATE LIBRARY BOARD.

ERIC Educational Resources Information Center

BLASINGAME, RALPH; AND OTHERS

USING INFORMATION FROM 5 COMMISSIONED STUDIES ON VARIOUS ASPECTS OF OHIO LIBRARIES (SUMMARIZED IN THIS REPORT), QUESTIONNAIRES, AND FIELD VISITS, THIS SURVEY IS INTENDED TO SERVE AS A BEGINNING FOR CONTINUOUS PLANNING AND TO PROVIDE A GENERAL FRAMEWORK FOR STATE-WIDE ACTION PROGRAMS. PROBLEM AREAS FOR OHIO PUBLIC LIBRARIES ARE SEEN AS--FINANCIAL…

A Dramaturgical Perspective on Academic Libraries

ERIC Educational Resources Information Center

Quinn, Brian

2005-01-01

Although many social sciences theories have been applied to the field of library and information science, one theory that has received relatively little attention is dramaturgy. The dramaturgical perspective posits that social life is inherently theatrical in nature. When applied to the academic library setting, both librarians and library users…

A New Consortial Model for Building Digital Libraries.

ERIC Educational Resources Information Center

Neff, Raymond K.

The libraries in U.S. research universities are being systematically depopulated of current subscriptions to scholarly journals. Annual increases in subscription costs are consistently outpacing the growth in library budgets; this has become a chronic problem for academic libraries which collect in the fields of science, engineering, and medicine.…

Key Issues in the Networking Field Today. Proceedings of the Library of Congress Network Advisory Committee Meeting (Washington, DC, May 6-8, 1985). Network Planning Paper No. 12.

ERIC Educational Resources Information Center

Library of Congress, Washington, DC. Network Development Office.

The May 1985 program session of the Library of Congress Network Advisory Committee focused on the identification of key issues in the networking field. Presentations included discussions of major network developments in the last two decades, the changing network players, the impact of technology on networks, and library networks and the law. The…

The Subject Headings of the Morris Swett Library, USAFAS. Revised.

DTIC Science & Technology

1980-05-15

Royal Armoured Corps. x Armored force. Armored troops. Armored units. Mechanized force. Mechanized units. Mechanized warfare. Tank companies. Tank...g., U. S. Ary- Physical training. CAMERA MOUNTS. CAMERAS, AERIAL. II I • • ! I CAMOUFLAGE. (U 166.3h) x Air arm - amouflage. - Bibliography. - Drape

Resource selection for an interdisciplinary field: a methodology.

PubMed

Jacoby, Beth E; Murray, Jane; Alterman, Ina; Welbourne, Penny

2002-10-01

The Health Sciences and Human Services Library of the University of Maryland developed and implemented a methodology to evaluate print and digital resources for social work. Although this methodology was devised for the interdisciplinary field of social work, the authors believe it may lend itself to resource selection in other interdisciplinary fields. The methodology was developed in response to the results of two separate surveys conducted in late 1999, which indicated improvement was needed in the library's graduate-level social work collections. Library liaisons evaluated the print collection by identifying forty-five locally relevant Library of Congress subject headings and then using these subjects or synonymous terms to compare the library's titles to collections of peer institutions, publisher catalogs, and Amazon.com. The collection also was compared to social work association bibliographies, ISI Journal Citation Reports, and major social work citation databases. An approval plan for social work books was set up to assist in identifying newly published titles. The library acquired new print and digital social work resources as a result of the evaluation, thus improving both print and digital collections for its social work constituents. Visibility of digital resources was increased by cataloging individual titles in aggregated electronic journal packages and listing each title on the library Web page.

Resource selection for an interdisciplinary field: a methodology*

PubMed Central

Jacoby, Beth E.; Murray, Jane; Alterman, Ina; Welbourne, Penny

2002-01-01

The Health Sciences and Human Services Library of the University of Maryland developed and implemented a methodology to evaluate print and digital resources for social work. Although this methodology was devised for the interdisciplinary field of social work, the authors believe it may lend itself to resource selection in other interdisciplinary fields. The methodology was developed in response to the results of two separate surveys conducted in late 1999, which indicated improvement was needed in the library's graduate-level social work collections. Library liaisons evaluated the print collection by identifying forty-five locally relevant Library of Congress subject headings and then using these subjects or synonymous terms to compare the library's titles to collections of peer institutions, publisher catalogs, and Amazon.com. The collection also was compared to social work association bibliographies, ISI Journal Citation Reports, and major social work citation databases. An approval plan for social work books was set up to assist in identifying newly published titles. The library acquired new print and digital social work resources as a result of the evaluation, thus improving both print and digital collections for its social work constituents. Visibility of digital resources was increased by cataloging individual titles in aggregated electronic journal packages and listing each title on the library Web page. PMID:12398245

The Army Study Program Fiscal Year 83 Report. Volume I.

DTIC Science & Technology

1983-01-01

C I 4.50 6 S 20 78 2237 PROJECTION OF SOVIET/WP E/W THREAT C 1 1.50 5 L 28 28 2841 RESTRUCTURING DIV FM NETS N 1 2.00 X M 20 88 2452 ROBOTICS IN THE...ATTN: LIBRARY) NATIONAL DEFENSE UNIVERSITY (ATTN: LIBRARY) US ARMY COMMAND AND GENERAL STAFF COLLEGE (ATTN: LIBRARY) ARMED FORCES STAFF COLLEGE (ATTN... GDLS and Performance Management Army (PKA) is contained in subsequent chapters of this report. a OFFUCHAPTER 1 STUDIES AND ARMY GOALS hr.4PURPOSE. This

Digital Scholarship and Resource Sharing Among Astronomy Libraries: A Case Study of RRI Library

NASA Astrophysics Data System (ADS)

Benegal, V.

2012-08-01

Prior to developing consortia, astronomy libraries in India were in an embryonic stage with meager resources and dwindling budgets. It was extremely difficult for them to respond to the needs of their users. Librarians at the various Indian astronomy institutes were forced to look at alternate strategies. Raman Research Institute in Bangalore will be examined in a case study where they attempt to implement resource sharing with other institutes in India and how they were able to provide efficient service to the astronomy community.

Navy Manpower Planning and Programming: Basis for Systems Examination

DTIC Science & Technology

1974-10-01

IRE5EARCH AND DEVEl. INAVAL RESEARCH] CHIEF OF NAVAL OPERATIONS OFFICE CHIIf OF NAVAL OPERATIONS NAVAL MATERIAL COMMAND •LitMARTERS NAVAL MATERIAL...DIVISION COMPENSATION BRANCH MANPOWER PROGRAMMING ■RANCH JOURNAL/TRADE TALK BRANCH 06A ASSISTANT FOR COMPUTER SCIENCES SYSTEMS DEVELOPMENT BRANCH...Assistant Director, Life Sciences , Air Force Office of Scientific Research Technical Library, Air Force Human Resources Laboratory, Lackland Air Force Base

QR Codes as Finding Aides: Linking Electronic and Print Library Resources

ERIC Educational Resources Information Center

Kane, Danielle; Schneidewind, Jeff

2011-01-01

As part of a focused, methodical, and evaluative approach to emerging technologies, QR codes are one of many new technologies being used by the UC Irvine Libraries. QR codes provide simple connections between print and virtual resources. In summer 2010, a small task force began to investigate how QR codes could be used to provide information and…

Are the Deaf a Disabled Group, or a Linguistic Minority? Issues for Librarians in Victoria's Public Libraries

ERIC Educational Resources Information Center

McQuigg, Karen

2003-01-01

Presents a brief overview of the sociological forces shaping the discourse of disability; examines the part that public libraries have played, or failed to play, in addressing issues of exclusion as they relate to people with disabilities. Focuses on Australia's deaf community and its particular informational needs. The low impact of the…

Automating Media Centers and Small Libraries: A Microcomputer-Based Approach.

ERIC Educational Resources Information Center

Meghabghab, Dania Bilal

Although the general automation process can be applied to most libraries, small libraries and media centers require a customized approach. Using a systematic approach, this guide covers each step and aspect of automation in a small library setting, and combines the principles of automation with field- tested activities. After discussing needs…

How Library Paraprofessionals in Academic Institutions Can Benefit from Distance Education Opportunities

ERIC Educational Resources Information Center

Dye, Judith

2005-01-01

With the proliferation of distance education courses in the field of library and information science today, academic library paraprofessionals have the means to continue their education while continuing to be productive in their jobs. Courses can be taken online through institutions and organizations such as library schools, community colleges,…

SITE CHARACTERIZATION LIBRARY VERSION 3.0

EPA Science Inventory

The Site Characterization Library is a CD that provides a centralized, field-portable source for site characterization information. Version 3 of the Site Characterization Library contains additional (from earlier versions) electronic documents and computer programs related to th...

Laws, leaders, and legends of the modern National Library of Medicine

PubMed Central

Smith, Kent A.

2008-01-01

Purpose: The paper is an expanded version of the 2007 Joseph Leiter National Library of Medicine (NLM)/Medical Library Association Lecture presented at MLA ‘07, the Medical Library Association annual meeting in Philadelphia in May 2007. It presents an historical accounting of four major pieces of legislation, beginning with the NLM Act of 1956 up through the creation of the National Center for Biotechnology Information. Brief Description: The transition from the United States Armed Forces Medical Library to the United States National Library of Medicine in 1956 was a major turning point in NLM's history, scope, and direction. The succeeding landmark legislative achievements—namely, the 1965 Medical Library Assistance Act, the 1968 Joint Resolution forming the Lister Hill National Center for Biomedical Communications, and the 1988 authorization for the National Center for Biotechnology Information— transformed the library into a major biomedical communications institution and a leader and supporter of an effective national network of libraries of medicine. The leaders of the library and its major advocates—including Dr. Michael DeBakey, Senator Lister Hill, and Senator Claude Pepper—together contributed to the creation of the modern NLM. PMID:18379667

Building a Digital Library from the Ground Up: an Examination of Emergent Information Resources in the Machine Learning Community

NASA Astrophysics Data System (ADS)

Cunningham, Sally Jo

The current crop of digital libraries for the computing community are strongly grounded in the conventional library paradigm: they provide indexes to support searching of collections of research papers. As such, these digital libraries are relatively impoverished; the present computing digital libraries omit many of the documents and resources that are currently available to computing researchers, and offer few browsing structures. These computing digital libraries were built 'top down': the resources and collection contents are forced to fit an existing digital library architecture. A 'bottom up' approach to digital library development would begin with an investigation of a community's information needs and available documents, and then design a library to organize those documents in such a way as to fulfill the community's needs. The 'home grown', informal information resources developed by and for the machine learning community are examined as a case study, to determine the types of information and document organizations 'native' to this group of researchers. The insights gained in this type of case study can be used to inform construction of a digital library tailored to this community.

Library and Information Services for Literacy, Productivity and Democracy. Joint Hearing before the Subcommittee on Education, Arts and Humanities of the Committee on Labor and Human Resources, United States Senate, and the Subcommittee on Labor-Management Relations of the Committee on Education and Labor, House of Representatives. One Hundred Second Congress, First Session. Oversight Hearing at the White House Conference on Library and Information Services.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and Labor.

The oversight hearing at the second White House Conference on Library and Information Services (WHCLIS2) focuses on the role of the library in three major areas addressed by conference presenters: a literate work force; the productivity to compete in the international marketplace in the 21st century; and a populace fully equipped to participate in…

Scenario planning: a tool for academic health sciences libraries.

PubMed

Ludwig, Logan; Giesecke, Joan; Walton, Linda

2010-03-01

Review the International Campaign to Revitalise Academic Medicine (ICRAM) Future Scenarios as a potential starting point for developing scenarios to envisage plausible futures for health sciences libraries. At an educational workshop, 15 groups, each composed of four to seven Association of Academic Health Sciences Libraries (AAHSL) directors and AAHSL/NLM Fellows, created plausible stories using the five ICRAM scenarios. Participants created 15 plausible stories regarding roles played by health sciences librarians, how libraries are used and their physical properties in response to technology, scholarly communication, learning environments and health care economic changes. Libraries are affected by many forces, including economic pressures, curriculum and changes in technology, health care delivery and scholarly communications business models. The future is likely to contain ICRAM scenario elements, although not all, and each, if they come to pass, will impact health sciences libraries. The AAHSL groups identified common features in their scenarios to learn lessons for now. The hope is that other groups find the scenarios useful in thinking about academic health science library futures.

Professional Medical Library Education in the United States in Relation to the Qualifications of Medical Library Manpower in Ohio *

PubMed Central

Rees, Alan M.; Rothenberg, Lesliebeth; Denison, Barbara

1968-01-01

The present system of education for medical library practice in the United States consists of four major components: graduate degree programs in library science with specialization in medical librarianship; graduate degree programs in library science with no such specialization; postgraduate internships in medical libraries; continuing education programs. Data are presented illustrating the flow of graduates along these several educational pathways into medical library practice. The relevance of these educational components to the current medical library work force is discussed with reference to manpower data compiled for Ohio. The total number of medical library personnel in Ohio in 1968 is 316. Of this total, only forty-two (approximately 14 percent) have received any formal library training. Seventy persons have only a high school education. From these figures, it is concluded that there is no standard or essential qualification which is universally accepted as educational preparation for work in medical libraries; that the comparative sophistication of the educational programs in medical librarianship has yet to be reflected widely in general medical library practice; that an increasingly large number of non-professional or ancillary personnel are being, and will continue to be, utilized in medical libraries; that large numbers of untrained persons have sole responsibility for medical libraries; and that appropriate educational programs will have to be designed specifically for this type of personnel. PMID:5702318

Summer library reading programs.

PubMed

Fiore, Carole D

2007-01-01

Virtually all public libraries in the United States provide some type of summer library reading program during the traditional summer vacation period. Summer library reading programs provide opportunities for students of many ages and abilities to practice their reading skills and maintain skills that are developed during the school year. Fiore summarizes some of the research in the field and relates it to library programs and usage by students. Several traditional and innovative programs from U.S. and Canadian libraries are described. She concludes with a call for further research related to summer library reading programs.

Knowledge Management and Academic Libraries.

ERIC Educational Resources Information Center

Townley, Charles T.

2001-01-01

The emerging field of knowledge management offers academic libraries the opportunity to improve effectiveness, both for themselves and their parent institutions. This article summarizes knowledge management theory. Current applications in academic libraries and higher education are described. Similarities and difficulties between knowledge…

Twenty-five Years of DNA-Encoded Chemical Libraries.

PubMed

Neri, Dario

2017-05-04

Reference library: The availability of DNA-encoded chemical libraries containing billions of compounds facilitates the discovery of binding molecules for pharmaceutical applications and for investigating biological processes. This Special Issue highlights the use of this library technology and some of the latest developments in the field. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

U.S. Public Libraries: A Snapshot of Priorities & Perspectives

ERIC Educational Resources Information Center

OCLC Online Computer Library Center, Inc., 2012

2012-01-01

This new report details findings from a study OCLC conducted with libraries in mid-2011 to learn about their priorities, initiatives, thoughts on the future of their service points and the sources they use to keep up with developments in the library field. Most public library staff: (1) Anticipate that the top reason patrons are using their…

PEER - National Information Service for Earthquake Engineering - NISEE

Science.gov Websites

Information Service for Earthquake Engineering - NISEE The NISEE/PEER Library is an affiliated library of the Field Station, five miles from the main Berkeley campus. Address NISEE/PEER Library, University of Regents Hours Monday - Friday, 9:00 am - 1:00 pm Open to the public NISEE/PEER Library home page. 325

Authorship, Gender, and Institutional Affiliation in Library History: The Case of "Libraries & Culture."

ERIC Educational Resources Information Center

Herubel, Jean-Pierre V. M.

1991-01-01

Describes a study that examined two characteristics of authorship--the gender of the authors and their institutional affiliation--to see who is producing published research in the field of library history. The results of an analysis of articles, technical notes, and reviews from 23 years of "Library and Culture" are discussed. (two…

Implementation of molecular dynamics and its extensions with the coarse-grained UNRES force field on massively parallel systems; towards millisecond-scale simulations of protein structure, dynamics, and thermodynamics

PubMed Central

Liwo, Adam; Ołdziej, Stanisław; Czaplewski, Cezary; Kleinerman, Dana S.; Blood, Philip; Scheraga, Harold A.

2010-01-01

We report the implementation of our united-residue UNRES force field for simulations of protein structure and dynamics with massively parallel architectures. In addition to coarse-grained parallelism already implemented in our previous work, in which each conformation was treated by a different task, we introduce a fine-grained level in which energy and gradient evaluation are split between several tasks. The Message Passing Interface (MPI) libraries have been utilized to construct the parallel code. The parallel performance of the code has been tested on a professional Beowulf cluster (Xeon Quad Core), a Cray XT3 supercomputer, and two IBM BlueGene/P supercomputers with canonical and replica-exchange molecular dynamics. With IBM BlueGene/P, about 50 % efficiency and 120-fold speed-up of the fine-grained part was achieved for a single trajectory of a 767-residue protein with use of 256 processors/trajectory. Because of averaging over the fast degrees of freedom, UNRES provides an effective 1000-fold speed-up compared to the experimental time scale and, therefore, enables us to effectively carry out millisecond-scale simulations of proteins with 500 and more amino-acid residues in days of wall-clock time. PMID:20305729

2005 Navy MWR Customer Survey

DTIC Science & Technology

2007-07-01

serve. The opportunity to do several different things, boat rental, theme parks, trips, discount movie tickets, camping, trailer rental etc. all...events77%Playing fields82%Shipboard recreation programs 75%Library Media Resource77%On-base movies /theatres82%Outdoor recreation areas 75%Outdoor...activities77%Library Media Resource Center83%Shipboard movies 76%Outdoor recreation rental78%Recreation Center facilities83%Sports fields 79%Playing fields79

The health sciences librarian in medical education: a vital pathways project task force

PubMed Central

Schwartz, Diane G.; Blobaum, Paul M.; Shipman, Jean P.; Markwell, Linda Garr; Marshall, Joanne Gard

2009-01-01

Objectives: The Medical Education Task Force of the Task Force on Vital Pathways for Hospital Librarians reviewed current and future roles of health sciences librarians in medical education at the graduate and undergraduate levels and worked with national organizations to integrate library services, education, and staff into the requirements for training medical students and residents. Methods: Standards for medical education accreditation programs were studied, and a literature search was conducted on the topic of the role of the health sciences librarian in medical education. Results: Expectations for library and information services in current standards were documented, and a draft standard prepared. A comprehensive bibliography on the role of the health sciences librarian in medical education was completed, and an analysis of the services provided by health sciences librarians was created. Conclusion: An essential role and responsibility of the health sciences librarian will be to provide the health care professional with the skills needed to access, manage, and use library and information resources effectively. Validation and recognition of the health sciences librarian's contributions to medical education by accrediting agencies will be critical. The opportunity lies in health sciences librarians embracing the diverse roles that can be served in this vital activity, regardless of accrediting agency mandates. PMID:19851492

The Evidence in Hand: Report of the Task Force on the Artifact in Library Collections. Optimizing Collections and Services for Scholarly Use.

ERIC Educational Resources Information Center

Nichols, Stephen G.; Smith, Abby

This report discusses the ways in which artifacts and their physical frailties affect their research value--originality, faithfulness, fixity, and stability--over time and how libraries can minimize the risk of unacceptable loss of that value. It investigates the specific issues around selected media, such as paper-based printed matter, moving…

Partners in Lifelong Learning: How Creeds Elementary School and the Pungo-Blackwater Public Library Combine Forces for the Benefit of Their Community

ERIC Educational Resources Information Center

Lighthart, Matthew; Spreder, Creedence

2014-01-01

Matthew Lighthart and Creedence Spreder, librarians, describe a partnership that proved successful for the school and library in their community of Pungo, nestled in Virginia Beach's vast but sparsely populated agricultural center. This community was facing a dual challenge: their only elementary school (Creeds) was in dire need of renovation and…

Collective amnesia: reversing the global epidemic of addiction library closures.

PubMed

Mitchell, Andrea L; Lacroix, Sheila; Weiner, Barbara S; Imholtz, Clare; Goodair, Christine

2012-08-01

Special libraries in the addiction field have been downsized or closed at an alarming rate during the past decade. This editorial describes what is happening, why,and what can be done to prevent further erosion of contemporary and historical records so vital to an interdisciplinary field.

The ELF in Your Library.

ERIC Educational Resources Information Center

McKimmie, Tim; Smith, Jeanette

1994-01-01

Presents an overview of the issues related to extremely low frequency (ELF) radiation from computer video display terminals. Highlights include electromagnetic fields; measuring ELF; computer use in libraries; possible health effects; electromagnetic radiation; litigation and legislation; standards and safety; and what libraries can do. (Contains…

Systematic Testing of Belief-Propagation Estimates for Absolute Free Energies in Atomistic Peptides and Proteins.

PubMed

Donovan-Maiye, Rory M; Langmead, Christopher J; Zuckerman, Daniel M

2018-01-09

Motivated by the extremely high computing costs associated with estimates of free energies for biological systems using molecular simulations, we further the exploration of existing "belief propagation" (BP) algorithms for fixed-backbone peptide and protein systems. The precalculation of pairwise interactions among discretized libraries of side-chain conformations, along with representation of protein side chains as nodes in a graphical model, enables direct application of the BP approach, which requires only ∼1 s of single-processor run time after the precalculation stage. We use a "loopy BP" algorithm, which can be seen as an approximate generalization of the transfer-matrix approach to highly connected (i.e., loopy) graphs, and it has previously been applied to protein calculations. We examine the application of loopy BP to several peptides as well as the binding site of the T4 lysozyme L99A mutant. The present study reports on (i) the comparison of the approximate BP results with estimates from unbiased estimators based on the Amber99SB force field; (ii) investigation of the effects of varying library size on BP predictions; and (iii) a theoretical discussion of the discretization effects that can arise in BP calculations. The data suggest that, despite their approximate nature, BP free-energy estimates are highly accurate-indeed, they never fall outside confidence intervals from unbiased estimators for the systems where independent results could be obtained. Furthermore, we find that libraries of sufficiently fine discretization (which diminish library-size sensitivity) can be obtained with standard computing resources in most cases. Altogether, the extremely low computing times and accurate results suggest the BP approach warrants further study.

Computational algorithms for simulations in atmospheric optics.

PubMed

Konyaev, P A; Lukin, V P

2016-04-20

A computer simulation technique for atmospheric and adaptive optics based on parallel programing is discussed. A parallel propagation algorithm is designed and a modified spectral-phase method for computer generation of 2D time-variant random fields is developed. Temporal power spectra of Laguerre-Gaussian beam fluctuations are considered as an example to illustrate the applications discussed. Implementation of the proposed algorithms using Intel MKL and IPP libraries and NVIDIA CUDA technology is shown to be very fast and accurate. The hardware system for the computer simulation is an off-the-shelf desktop with an Intel Core i7-4790K CPU operating at a turbo-speed frequency up to 5 GHz and an NVIDIA GeForce GTX-960 graphics accelerator with 1024 1.5 GHz processors.

JDiffraction: A GPGPU-accelerated JAVA library for numerical propagation of scalar wave fields

NASA Astrophysics Data System (ADS)

Piedrahita-Quintero, Pablo; Trujillo, Carlos; Garcia-Sucerquia, Jorge

2017-05-01

JDiffraction, a GPGPU-accelerated JAVA library for numerical propagation of scalar wave fields, is presented. Angular spectrum, Fresnel transform, and Fresnel-Bluestein transform are the numerical algorithms implemented in the methods and functions of the library to compute the scalar propagation of the complex wavefield. The functionality of the library is tested with the modeling of easy to forecast numerical experiments and also with the numerical reconstruction of a digitally recorded hologram. The performance of JDiffraction is contrasted with a library written for C++, showing great competitiveness in the apparently less complex environment of JAVA language. JDiffraction also includes JAVA easy-to-use methods and functions that take advantage of the computation power of the graphic processing units to accelerate the processing times of 2048×2048 pixel images up to 74 frames per second.

Complementary DNA libraries: an overview.

PubMed

Ying, Shao-Yao

2004-07-01

The generation of complete and full-length cDNA libraries for potential functional assays of specific gene sequences is essential for most molecules in biotechnology and biomedical research. The field of cDNA library generation has changed rapidly in the past 10 yr. This review presents an overview of the method available for the basic information of generating cDNA libraries, including the definition of the cDNA library, different kinds of cDNA libraries, difference between methods for cDNA library generation using conventional approaches and a novel strategy, and the quality of cDNA libraries. It is anticipated that the high-quality cDNA libraries so generated would facilitate studies involving genechips and the microarray, differential display, subtractive hybridization, gene cloning, and peptide library generation.

Bachelor's Degree in Library and Information Science Field: A Comparative Analysis Study Performed on Distinguished American Universities

ERIC Educational Resources Information Center

Abouserie, Hossam Eldin Mohamed Refaat

2009-01-01

This study explored the state of bachelor's degree offered at top Library and Information Science schools in the United States in 2009. Schools selected were accredited on the Master's level and ranked as top five Library and Information Science schools by the American Library Association, ALA. The study embraced the comparative analysis…

Charting a Course through CORAL: Texas A&M University Libraries' Experience Implementing an Open-Source Electronic Resources Management System

ERIC Educational Resources Information Center

Hartnett, Eric; Beh, Eugenia; Resnick, Taryn; Ugaz, Ana; Tabacaru, Simona

2013-01-01

In 2010, after two previous unsuccessful attempts at electronic resources management system (ERMS) implementation, Texas A&M University (TAMU) Libraries set out once again to find an ERMS that would fit its needs. After surveying the field, TAMU Libraries selected the University of Notre Dame Hesburgh Libraries-developed, open-source ERMS,…

U.S. Academic Libraries: A Snapshot of Priorities & Perspectives

ERIC Educational Resources Information Center

OCLC Online Computer Library Center, Inc., 2012

2012-01-01

This new report details findings from a study OCLC conducted with libraries in mid-2011 to learn about their priorities, initiatives, thoughts on the future of their service points and the sources they use to keep up with developments in the library field. Most academic library staff: (1) Consider licensed e-collections to be a top priority; (2)…

School Library Research from around the World: Where It's Been and Where It's Headed

ERIC Educational Resources Information Center

Gavigan, Karen

2018-01-01

Although their research agendas may vary widely, school library researchers from around the world share the common goal of conducting studies designed to advance the field of school librarianship. International school library scholars are united in their efforts to prove that quality school library programs can have a significant impact on student…

U.S. Community College Libraries: A Snapshot of Priorities & Perspectives

ERIC Educational Resources Information Center

OCLC Online Computer Library Center, Inc., 2012

2012-01-01

This new report details findings from a study OCLC conducted with libraries in mid-2011 to learn about their priorities, initiatives, thoughts on the future of their service points and the sources they use to keep up with developments in the library field. Most community college library staff: (1) Consider licensed e-collections and e-books to be…

Current Research: Measurement and Evaluation of the Collection.

ERIC Educational Resources Information Center

Mancall, Jacqueline C.

1982-01-01

Reviews the literature on the evaluation of library collections, discusses the research specifically on collection evaluation in school libraries, and draws attention to the types of studies that are needed in the school library media field. A 22-item reference list is included. (JL)

The United States Air Force Academy: A Bibliography 1954 - 1964

DTIC Science & Technology

1966-01-01

August 1958. 498 Stringer, Roger. " Pro Nobis Astra" (Class of 󈨁 selects its ring), Talon 5;5, May 1960. 499 Trotogott, Pete. Cadet...relate to establishing an air academy. These are not included since they have no specific bearing on the Academy as it now exists. The Library staff...Newsletter AF Times - Air Force Times Air Cond Heat & Ven - Air Conditioning, Heating, and Venti- lating Air Force Airman Air Power Historian

Grants for Libraries & Information Services. 2012 Digital Edition

ERIC Educational Resources Information Center

Foundation Center, 2011

2011-01-01

This publication is only available as a downloadable file. See who's giving and getting grants in your field. Strengthen your search for funds with the Foundation Center's digital edition of "Grants for Libraries & Information Services." This new "Grant Guide" reveals the scope of current foundation giving in the field. You'll find descriptions of…

The value of Web-based library services at Cedars-Sinai Health System.

PubMed

Halub, L P

1999-07-01

Cedars-Sinai Medical Library/Information Center has maintained Web-based services since 1995 on the Cedars-Sinai Health System network. In that time, the librarians have found the provision of Web-based services to be a very worthwhile endeavor. Library users value the services that they access from their desktops because the services save time. They also appreciate being able to access services at their convenience, without restriction by the library's hours of operation. The library values its Web site because it brings increased visibility within the health system, and it enables library staff to expand services when budget restrictions have forced reduced hours of operation. In creating and maintaining the information center Web site, the librarians have learned the following lessons: consider the design carefully; offer what services you can, but weigh the advantages of providing the services against the time required to maintain them; make the content as accessible as possible; promote your Web site; and make friends in other departments, especially information services.

The value of Web-based library services at Cedars-Sinai Health System.

PubMed Central

Halub, L P

1999-01-01

Cedars-Sinai Medical Library/Information Center has maintained Web-based services since 1995 on the Cedars-Sinai Health System network. In that time, the librarians have found the provision of Web-based services to be a very worthwhile endeavor. Library users value the services that they access from their desktops because the services save time. They also appreciate being able to access services at their convenience, without restriction by the library's hours of operation. The library values its Web site because it brings increased visibility within the health system, and it enables library staff to expand services when budget restrictions have forced reduced hours of operation. In creating and maintaining the information center Web site, the librarians have learned the following lessons: consider the design carefully; offer what services you can, but weigh the advantages of providing the services against the time required to maintain them; make the content as accessible as possible; promote your Web site; and make friends in other departments, especially information services. PMID:10427423

Analyzing Sanctuary Management in the Sahel

DTIC Science & Technology

2015-06-12

Afghanistan and Iraq, but they often lack the specific skills required for the multicultural , multilingual, and multinational environment of the Sahel...article/2013/11/14/us-africa-usa-military-idUSBRE9AD1AA20131114. Arieff, Alexis. 2013. Crisis in Mali. Washington, DC: U.S. Library of Congress...2011. US Special Operations Forces (SOF): Background and Issues for Congress. Washington, DC: U.S. Library of Congress, Congressional Research Service

Retrospective Reconstruction of Radiation Doses of Chernobyl Liquidators by Electron Paramagnetic Resonance

DTIC Science & Technology

1997-12-01

Armed Forces Rad I Research Institute Retrospective Reconstruction of Radiation Doses of Chernobyl Liquidators by Electron Paramagnetic Resonance A...of Radiation Doses of Chernobyl Liquidators by Electron Paramagnetic Resonance Authored by Scientific Center of Radiation Medicine Academy of Medical...libraries associated with the U.S. Government’s Depository Library System. Preface On April 26, 1986, Reactor #4 at the Chernobyl Nuclear Power Plant near

Army Library Institute V: Product/Marketing/Service - Volume 2, Supplementary Data

DTIC Science & Technology

1981-11-01

Rinctlons OCLC for Beginners Performance Standards Screening Panel Session 4, Thursday, 21 May 1981 Task Force Group Meetings ADP/Networking...for Library Functions W OCLC for Beginners X Career Programs and Position Classification Standards Y Screening Panel...is non-DLC a librarian will examine it, assign a call number, and do any other editing. For a flowchart , see Appendix 6, but remember that this is a

U.S. National Security: A Selected Bibliography

DTIC Science & Technology

2013-12-01

and Access Services Division, U.S. Army War College Library, by sending an e -mail message to USAWC.LibraryR@us.army.mil, or by phoning (717) 245...ProQuest May, Peter J., Ashley E . Jochim, and Joshua Sapotichne. "Constructing Homeland Security: An Anemic Policy Regime." Policy Studies Journal 39... Layton G., Jr. Reposturing the Force: Implications of Budget Reductions and Regional Rebalancing. Strategy Research Project. Carlisle Barracks: U.S

Proceedings of Military Librarians' Workshop. The User and the Library (11th, Wright-Patterson Air Force Base, October 31-November 2, 1967).

ERIC Educational Resources Information Center

Air Force Inst. of Tech., Wright-Patterson AFB, OH.

The purpose of this workshop was to investigate the problems the user faces in using a military library and to develop some methods of overcoming these problems. To provide balanced representation of both users and librarians, outside speakers contributed ideas that were discussed in group meetings. Each group discussed the same major topics,…

Special Libraries, Problems and Cooperative Potentials; Prepared for the National Advisory Commission on Libraries. Final Report.

ERIC Educational Resources Information Center

Havlik, Robert J.; And Others

A three part approach was taken in this situation report on the role of the special libraries in the United States. First, several background papers were prepared about the definition and state-of-the-art of the field of special librarianship. These papers are: (1) Shera, Jesse H., "Special Libraries--Why 'Special'?, (2) Ash, Lee,…

Trends in hospital librarianship and hospital library services: 1989 to 2006.

PubMed

Thibodeau, Patricia L; Funk, Carla J

2009-10-01

The research studied the status of hospital librarians and library services to better inform the Medical Library Association's advocacy activities. The Vital Pathways Survey Subcommittee of the Task Force on Vital Pathways for Hospital Librarians distributed a web-based survey to hospital librarians and academic health sciences library directors. The survey results were compared to data collected in a 1989 survey of hospital libraries by the American Hospital Association in order to identify any trends in hospital libraries, roles of librarians, and library services. A web-based hospital library report form based on the survey questions was also developed to more quickly identify changes in the status of hospital libraries on an ongoing basis. The greatest change in library services between 1989 and 2005/06 was in the area of access to information, with 40% more of the respondents providing access to commercial online services, 100% more providing access to Internet resources, and 28% more providing training in database searching and use of information resources. Twenty-nine percent (n = 587) of the 2005/06 respondents reported a decrease in staff over the last 5 years. Survey data support reported trends of consolidation of hospitals and hospital libraries and additions of new services. These services have likely required librarians to acquire new skills. It is hoped that future surveys will be undertaken to continue to study these trends.

Trends in hospital librarianship and hospital library services: 1989 to 2006

PubMed Central

Thibodeau, Patricia L.; Funk, Carla J.

2009-01-01

Objective: The research studied the status of hospital librarians and library services to better inform the Medical Library Association's advocacy activities. Methods: The Vital Pathways Survey Subcommittee of the Task Force on Vital Pathways for Hospital Librarians distributed a web-based survey to hospital librarians and academic health sciences library directors. The survey results were compared to data collected in a 1989 survey of hospital libraries by the American Hospital Association in order to identify any trends in hospital libraries, roles of librarians, and library services. A web-based hospital library report form based on the survey questions was also developed to more quickly identify changes in the status of hospital libraries on an ongoing basis. Results: The greatest change in library services between 1989 and 2005/06 was in the area of access to information, with 40% more of the respondents providing access to commercial online services, 100% more providing access to Internet resources, and 28% more providing training in database searching and use of information resources. Twenty-nine percent (n = 587) of the 2005/06 respondents reported a decrease in staff over the last 5 years. Conclusions: Survey data support reported trends of consolidation of hospitals and hospital libraries and additions of new services. These services have likely required librarians to acquire new skills. It is hoped that future surveys will be undertaken to continue to study these trends. PMID:19851491

Empowering your institution through assessment

PubMed Central

Joubert, Douglas J.; Lee, Tamera P.

2007-01-01

Objectives: The objectives of this study are to describe the process of linking Association of Academic Health Sciences Libraries (AAHSL) data with 2002 LibQUAL+ data and to address four analytical questions created by the AAHSL Task Force on Quality Assessment that relate both to user satisfaction and to services provided by AAHSL libraries. Methods: For the thirty-five AAHSL libraries that participated in the 2002 LibQUAL+ survey, nested-effect of variance was analyzed using a linear mixed model. Using the Pearson correlation coefficient, this study explored four questions about the effect of user demographics on perceived levels of satisfaction with library services. Results: The supposition that library user satisfaction may differ according to library institutional reporting structure was unsupported. Regarding effect on mean overall satisfaction, size of library staff is not significant (P = 0.860), number of constituents is slightly significant (P = 0.027), and ratio of staff to constituents has a moderate and significant effect (P = 0.004). Conclusions: From a demographic perspective, the 2002 LibQUAL+ survey represents the largest cross section of AAHSL libraries. Increased understanding of how qualitative assessment can supplement quantitative data supports evidence-based decision-making and practice. It also could promote changes in data collection and usage. PMID:17252066

Empowering your institution through assessment.

PubMed

Joubert, Douglas J; Lee, Tamera P

2007-01-01

The objectives of this study are to describe the process of linking Association of Academic Health Sciences Libraries (AAHSL) data with 2002 LibQUAL+ data and to address four analytical questions created by the AAHSL Task Force on Quality Assessment that relate both to user satisfaction and to services provided by AAHSL libraries. For the thirty-five AAHSL libraries that participated in the 2002 LibQUAL+ survey, nested-effect of variance was analyzed using a linear mixed model. Using the Pearson correlation coefficient, this study explored four questions about the effect of user demographics on perceived levels of satisfaction with library services. The supposition that library user satisfaction may differ according to library institutional reporting structure was unsupported. Regarding effect on mean overall satisfaction, size of library staff is not significant (P = 0.860), number of constituents is slightly significant (P = 0.027), and ratio of staff to constituents has a moderate and significant effect (P = 0.004). From a demographic perspective, the 2002 LibQUAL+ survey represents the largest cross section of AAHSL libraries. Increased understanding of how qualitative assessment can supplement quantitative data supports evidence-based decision-making and practice. It also could promote changes in data collection and usage.

Choosing a Hand-Held Inventory Device

ERIC Educational Resources Information Center

Green, Lois; Hughes, Janet; Neff, Verne; Notartomas, Trish

2008-01-01

In spring of 2006, a task force was charged to look at the feasibility of acquiring hand-held inventory devices for the Pennsylvania State University Libraries (PSUL). The task force's charge was not to look at the whole concept of doing an inventory, but rather to focus on the feasibility of acquiring hand-held devices to use in an inventory.…

All about Motion & Balance. Physical Science for Children[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

Walking on a balance beam or riding a bike both require motion and balance. This program will reveal how unbalanced forces create motion, while balanced forces keep things still. Students also learn how concepts like velocity, acceleration, and momentum fit into this puzzle. A unique hands-on activity combined with vivid imagery and graphics…

Friction. Physical Science in Action[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

Most people think friction is what happens when two things are rubbed together. But there's so much more! Friction is a force that resists motion. Yet, without friction, motion would be impossible. Students will learn more about this natural force and the attempts made at controlling it in the world. Includes a hands-on activity and graphic…

Toxic Warfare

DTIC Science & Technology

2002-02-01

Prepared for the United States Air Force Approved for public release; distribution unlimited Theodore Karasik Project AIR FORCE R TOXIC WARFARE...Report Documentation Page Report Date 000002002 Report Type N/A Dates Covered (from... to) - Title and Subtitle Toxic Warfare Contract Number Grant...310) 451-6915; Email: order@rand.org Library of Congress Cataloging-in-Publication Data Karasik, Theodore William. Toxic warfare / Theodore Karasik

The accurate particle tracer code

DOE PAGES

Wang, Yulei; Liu, Jian; Qin, Hong; ...

2017-07-20

The Accurate Particle Tracer (APT) code is designed for systematic large-scale applications of geometric algorithms for particle dynamical simulations. Based on a large variety of advanced geometric algorithms, APT possesses long-term numerical accuracy and stability, which are critical for solving multi-scale and nonlinear problems. To provide a flexible and convenient I/O interface, the libraries of Lua and Hdf5 are used. Following a three-step procedure, users can efficiently extend the libraries of electromagnetic configurations, external non-electromagnetic forces, particle pushers, and initialization approaches by use of the extendible module. APT has been used in simulations of key physical problems, such as runawaymore » electrons in tokamaks and energetic particles in Van Allen belt. As an important realization, the APT-SW version has been successfully distributed on the world’s fastest computer, the Sunway TaihuLight supercomputer, by supporting master–slave architecture of Sunway many-core processors. Here, based on large-scale simulations of a runaway beam under parameters of the ITER tokamak, it is revealed that the magnetic ripple field can disperse the pitch-angle distribution significantly and improve the confinement of energetic runaway beam on the same time.« less

The accurate particle tracer code

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wang, Yulei; Liu, Jian; Qin, Hong

The Accurate Particle Tracer (APT) code is designed for systematic large-scale applications of geometric algorithms for particle dynamical simulations. Based on a large variety of advanced geometric algorithms, APT possesses long-term numerical accuracy and stability, which are critical for solving multi-scale and nonlinear problems. To provide a flexible and convenient I/O interface, the libraries of Lua and Hdf5 are used. Following a three-step procedure, users can efficiently extend the libraries of electromagnetic configurations, external non-electromagnetic forces, particle pushers, and initialization approaches by use of the extendible module. APT has been used in simulations of key physical problems, such as runawaymore » electrons in tokamaks and energetic particles in Van Allen belt. As an important realization, the APT-SW version has been successfully distributed on the world’s fastest computer, the Sunway TaihuLight supercomputer, by supporting master–slave architecture of Sunway many-core processors. Here, based on large-scale simulations of a runaway beam under parameters of the ITER tokamak, it is revealed that the magnetic ripple field can disperse the pitch-angle distribution significantly and improve the confinement of energetic runaway beam on the same time.« less

Pathfinders: An Intellectual Guide to Libraries.

ERIC Educational Resources Information Center

Jung, Claudia Ruediger; And Others

Intended as an example for other college libraries, this collection of 38 pathfinders and bibliographies was developed by the reference staff of the Calvin Coolidge Library at Castleton State College, Vermont. Designed to present the types of literature available in particular subject fields and those works readily available in the Coolidge…

77 FR 27253 - Proposed Collection, Laura Bush 21st Century Librarian Grant Program Evaluation

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-09

... information gathered will inform the library and information science field of innovations and best practices... Century Librarian Grant Program Evaluation AGENCY: Institute of Museum and Library Services, National.... SUMMARY: The Institute of Museum and Library Services announces the following information collection has...

Cable Television for Librarians.

ERIC Educational Resources Information Center

Kenney, Brigitte L., Ed.

1973-01-01

In September 1972, a federally-funded 3-day institute was held, under the auspices of the Drexel University Graduate School of Library Science, to acquaint librarians from local State and Regional public libraries with current developments in the cable television field as they affect library planning and activities. The program utilized several…

Graduate and Post-MLS Study in Digital Libraries

ERIC Educational Resources Information Center

Blummer, Barbara

2005-01-01

As librarians confront the Information Age, it is imperative that they remain aware of the issues that affect the profession. Traditional library skills are no longer adequate for maintaining a competitive edge in the field. Post-graduate education in digital libraries offers information professionals an opportunity to broaden their knowledge of…

Disturbances in the Field. Sexual Harassment and Libraries: Stories from the Front.

ERIC Educational Resources Information Center

Watstein, Sarah Barbara

1993-01-01

This second part of an article on sexual harassment and libraries features stories of library workers who have suffered sexual harassment. Highlights include problems from men and women; homosexuality issues; harassment from supervisors, employees being supervised, co-workers, and patrons; and the involvement of Equal Employment Opportunity…

The Visibility of Information Science and Library Science Research in Bibliometric Mapping of the LIS Field

ERIC Educational Resources Information Center

Astrom, Fredrik

2010-01-01

The relation between information science and library science has been debated for decades, and even attempts at utilizing methods generally acknowledged as robust for the purpose of mapping research fields have yielded results with large variations. Therefore, a set of citation analyses was performed, comparing the results of analyses on…

Project Libra: A Competency-Based, Field-Centered Aboroach to the Preparation of Library Media Specialists.

ERIC Educational Resources Information Center

Hug, William E.

This document describes Project Libra, a competency-based, field-centered approach to preparation of library media specialists at the undergraduate and graduate levels at Auburn University (Alabama). Thirteen global objectives for the programs are listed, and competencies within each of these are suggested. The program of study and outlines of…

Surveying the Field: The Research Model of Women in Librarianship, 1882-1898

ERIC Educational Resources Information Center

McDowell, Kate

2009-01-01

Women who promoted library services to children in the United States in the late nineteenth century introduced the systematic use of survey research on library practice to the field of professional librarianship. They created a series of qualitative survey-based reports, the "Reading of the Young" reports, which were presented at ALA conferences…

Electromagnetic Radiation Reaction in General Relativity.

NASA Astrophysics Data System (ADS)

O'Donnell, Nuala

Available from UMI in association with The British Library. This thesis examines the electromagnetic radiation reaction felt by a charged body falling freely in an external gravitational field in general relativity. The original objective was to find a new derivation of the radiation reaction force F^{i} of DeWitt and DeWitt^1 which was calculated for the special case of a point charge falling in slow motion in a weak, static gravitational field: F ^{i} = {2over 3}e^2R^{i}_{0j0 }v^{j}. This may be thought of as a local expression since it involves the particle's velocity v^{j } and the local Riemann curvature tensor R ^{i}_{0j0}. Its derivation involves integrals over the whole history of the particle, covering distances of approximately the length scale on which R^{i}_{0j0 } changes. This is different from calculations of the Abraham-Lorentz force of flat space-time involving integrals over distances only a few times the size of the charge. This work was motivated by the wish to find a "local" derivation of the local reaction force. Using Schutz's^2 local initial value method to solve the problem of a charged, rigid, spherically symmetric body moving in an external gravitational field of arbitrary metric. Calculations are done in a Riemann normal coordinate system ^3 and are only valid in a normal neighbourhood of the origin, where geodesics have not begun to cross one another. We solve Maxwell's equations for the self -force by making a slow-motion approximation and keeping terms to first order only in the Riemann tensor and velocity. It is surprising that we find no local radiation reaction. Consider two particles in a static spacetime with the same initial conditions at t = 0. Particle A is that of DeWitt and DeWitt; it feels a reaction force F^{i} = {2over 3}e^2R^{i }_{0j0}v^{j}. Particle B is accelerated from rest to the same small velocity; it feels no reaction force. The two particles therefore follow different trajectories. We conclude that there is a certain amount of history dependence in curved spacetime which is absent in flat spacetime where the Abraham-Lorentz reaction force acts equally on both particles. ftn ^1C. M. DeWitt and B. S. Brehme, Falling Charges, Phys., 1, 3 (1964). ^2B. F. Schutz, Statistical Formulation of Gravitational Radiation Reaction, Phys. Rev. D., 22, 249 (1980). ^3See for example A. Z. Petrov, Einstein Spaces, p.33, Pergamon Press (1969).

A Fortran Program for the Determination of Unsteady Air Forces on General Combinations of Interfering Lifting Surfaces Oscillating in Subsonic Flow,

DTIC Science & Technology

1985-01-01

constant for the panel com- bination under consideration. dh . . *.~r, With reference to Figure 2, the sine and cosine of the dihedral angle of the...15.200 15.298 17-345 17.562 Q 353.8 357.7 355.1 357-8 355Ś 357.4 355-1 356.7 QI1 6虍 6-791 6-641 7" 106 6蚎 6衆 5� 6蔓 Qti 165𔃿 164-0 164...Airlines of Australia, Library - Commonwealth Aircraft Corporation, Library Hawker de Havilland Aust. Pty. Ltd., Bankstown, Library Rolls-Royce of

An efficient field and laboratory workflow for plant phylotranscriptomic projects1

PubMed Central

Yang, Ya; Moore, Michael J.; Brockington, Samuel F.; Timoneda, Alfonso; Feng, Tao; Marx, Hannah E.; Walker, Joseph F.; Smith, Stephen A.

2017-01-01

Premise of the study: We describe a field and laboratory workflow developed for plant phylotranscriptomic projects that involves cryogenic tissue collection in the field, RNA extraction and quality control, and library preparation. We also make recommendations for sample curation. Methods and Results: A total of 216 frozen tissue samples of Caryophyllales and other angiosperm taxa were collected from the field or botanical gardens. RNA was extracted, stranded mRNA libraries were prepared, and libraries were sequenced on Illumina HiSeq platforms. These included difficult mucilaginous tissues such as those of Cactaceae and Droseraceae. Conclusions: Our workflow is not only cost effective (ca. $270 per sample, as of August 2016, from tissue to reads) and time efficient (less than 50 h for 10–12 samples including all laboratory work and sample curation), but also has proven robust for extraction of difficult samples such as tissues containing high levels of secondary compounds. PMID:28337391

Real-time access of large volume imagery through low-bandwidth links

NASA Astrophysics Data System (ADS)

Phillips, James; Grohs, Karl; Brower, Bernard; Kelly, Lawrence; Carlisle, Lewis; Pellechia, Matthew

2010-04-01

Providing current, time-sensitive imagery and geospatial information to deployed tactical military forces or first responders continues to be a challenge. This challenge is compounded through rapid increases in sensor collection volumes, both with larger arrays and higher temporal capture rates. Focusing on the needs of these military forces and first responders, ITT developed a system called AGILE (Advanced Geospatial Imagery Library Enterprise) Access as an innovative approach based on standard off-the-shelf techniques to solving this problem. The AGILE Access system is based on commercial software called Image Access Solutions (IAS) and incorporates standard JPEG 2000 processing. Our solution system is implemented in an accredited, deployable form, incorporating a suite of components, including an image database, a web-based search and discovery tool, and several software tools that act in concert to process, store, and disseminate imagery from airborne systems and commercial satellites. Currently, this solution is operational within the U.S. Government tactical infrastructure and supports disadvantaged imagery users in the field. This paper presents the features and benefits of this system to disadvantaged users as demonstrated in real-world operational environments.

Lifelong Learning in Public Libraries in 12 European Union Countries: Policy and Considerations

ERIC Educational Resources Information Center

Stanziola, Javier

2010-01-01

Public libraries have traditionally provided key inputs to support lifelong learning. More recently, significant social and technological changes have challenged this sector to redefine their role in this field. For most public libraries in Europe this has meant continuing their role as providers of information and advice while increasing services…

Library Skills for Teachers: A Self-Paced Workbook.

ERIC Educational Resources Information Center

Mech, Terrence

Designed to introduce education students to the basic library resources in the field, this self-paced workbook assumes a basic knowledge of the library and its resources. Each section in the eight-chapter workbook discusses a particular type of reference material and sample entries are provided when appropriate. Eleven assignments (two multiple…

Portal to the World: AIHEC Virtual Library Opens Doors for Native Research

ERIC Educational Resources Information Center

Kirby, Jane

2004-01-01

The Internet keeps growing at lightning speed. Now, "tribal college" students have a tool to assist them in locating accurate information quickly: the American Indian Higher Education Consortium (AIHEC) Virtual Library. The AIHEC Virtual Library provides a focused entryway into the Internet research field. Librarians report that it supplements…

TRIQS: A toolbox for research on interacting quantum systems

NASA Astrophysics Data System (ADS)

Parcollet, Olivier; Ferrero, Michel; Ayral, Thomas; Hafermann, Hartmut; Krivenko, Igor; Messio, Laura; Seth, Priyanka

2015-11-01

We present the TRIQS library, a Toolbox for Research on Interacting Quantum Systems. It is an open-source, computational physics library providing a framework for the quick development of applications in the field of many-body quantum physics, and in particular, strongly-correlated electronic systems. It supplies components to develop codes in a modern, concise and efficient way: e.g. Green's function containers, a generic Monte Carlo class, and simple interfaces to HDF5. TRIQS is a C++/Python library that can be used from either language. It is distributed under the GNU General Public License (GPLv3). State-of-the-art applications based on the library, such as modern quantum many-body solvers and interfaces between density-functional-theory codes and dynamical mean-field theory (DMFT) codes are distributed along with it.

From Mary Virginia Gaver to the CLASS Research Summit: A Journey toward Causality and Student Success

ERIC Educational Resources Information Center

Soulen, Rita R.

2016-01-01

Mary Virginia Gaver conducted the first correlational research in the field of school libraries. Many in the field trace the beginning of the search for proof that effective school libraries impact student learning to her study published just over fifty years ago. While conducting her study she developed measures of the effectiveness of school…

Spanish Faculty Preferences and Usage of Library Services in the Field of Science and Technology

ERIC Educational Resources Information Center

Pinto, Maria; Fernandez-Ramos, Andres

2010-01-01

The authors compare Spanish faculty use of library services and the interest they express in value-added services and improvement actions. The results are based on data from a survey of 546 faculty in the field of science and technology. The study differentiates between the areas of pure science, engineering and architecture, and life sciences.…

Speaking of Users: On User Discourses in the Field of Public Libraries

ERIC Educational Resources Information Center

Hedemark, Ase; Hedman, Jenny; Sundin, Olof

2005-01-01

Introduction: The aim of the study reported is to examine user discourses identified in the Swedish public library field. The following questions are posed: What user discourses can be found and what characterises them? How are users categorised and what does this categorisation imply? The departure point in this paper is that the ways users are…

Gravity. Physical Science in Action[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

All kids are familiar with the basic idea of gravity--it's why things fall to the ground. Gravity uses exciting visuals and clear, colorful graphics to take students beyond the basics to explain that gravity is really a force of attraction between objects. They'll discover that all objects--no matter how large or small--have gravitational force,…

USGS Spectral Library Version 7

USGS Publications Warehouse

Kokaly, Raymond F.; Clark, Roger N.; Swayze, Gregg A.; Livo, K. Eric; Hoefen, Todd M.; Pearson, Neil C.; Wise, Richard A.; Benzel, William M.; Lowers, Heather A.; Driscoll, Rhonda L.; Klein, Anna J.

2017-04-10

We have assembled a library of spectra measured with laboratory, field, and airborne spectrometers. The instruments used cover wavelengths from the ultraviolet to the far infrared (0.2 to 200 microns [μm]). Laboratory samples of specific minerals, plants, chemical compounds, and manmade materials were measured. In many cases, samples were purified, so that unique spectral features of a material can be related to its chemical structure. These spectro-chemical links are important for interpreting remotely sensed data collected in the field or from an aircraft or spacecraft. This library also contains physically constructed as well as mathematically computed mixtures. Four different spectrometer types were used to measure spectra in the library: (1) Beckman™ 5270 covering the spectral range 0.2 to 3 µm, (2) standard, high resolution (hi-res), and high-resolution Next Generation (hi-resNG) models of Analytical Spectral Devices (ASD) field portable spectrometers covering the range from 0.35 to 2.5 µm, (3) Nicolet™ Fourier Transform Infra-Red (FTIR) interferometer spectrometers covering the range from about 1.12 to 216 µm, and (4) the NASA Airborne Visible/Infra-Red Imaging Spectrometer AVIRIS, covering the range 0.37 to 2.5 µm. Measurements of rocks, soils, and natural mixtures of minerals were made in laboratory and field settings. Spectra of plant components and vegetation plots, comprising many plant types and species with varying backgrounds, are also in this library. Measurements by airborne spectrometers are included for forested vegetation plots, in which the trees are too tall for measurement by a field spectrometer. This report describes the instruments used, the organization of materials into chapters, metadata descriptions of spectra and samples, and possible artifacts in the spectral measurements. To facilitate greater application of the spectra, the library has also been convolved to selected spectrometer and imaging spectrometers sampling and bandpasses, and resampled to selected broadband multispectral sensors. The native file format of the library is the SPECtrum Processing Routines (SPECPR) data format. This report describes how to access freely available software to read the SPECPR format. To facilitate broader access to the library, we produced generic formats of the spectra and metadata in text files. The library is provided on digital media and online at https://speclab.cr.usgs.gov/spectral-lib.html. A long-term archive of these data are stored on the USGS ScienceBase data server (https://dx.doi.org/10.5066/F7RR1WDJ).

Cline Library Surveys of the NAU Faculty and Students, and Users of Media Services and Field Services, and Evaluations of the Desk Services Provided by Media Services and Special Collections and Archives.

ERIC Educational Resources Information Center

Mullen, Melissa J.; And Others

Results are presented from surveys conducted at Northern Arizona University (NAU) about its library services. Mail survey questionnaires were completed by 266 faculty members, and a telephone survey questioned 400 students about library services at the university's Cline Library. A mail survey completed by 121 media service users and 126 field…

Using knowledge management practices to develop a state-of-the-art digital library.

PubMed

Williams, Annette M; Giuse, Nunzia Bettinsoli; Koonce, Taneya Y; Kou, Qinghua; Giuse, Dario A

2004-01-01

Diffusing knowledge management practices within an organization encourages and facilitates reuse of the institution's knowledge commodity. Following knowledge management practices, the Eskind Biomedical Library (EBL) has created a Digital Library that uses a holistic approach for integration of information and skills to best represent both explicit and tacit knowledge inherent in libraries. EBL's Digital Library exemplifies a clear attempt to organize institutional knowledge in the field of librarianship, in an effort to positively impact clinical, research, and educational processes in the medical center.

New DMFT capabilities in CASTEP

NASA Astrophysics Data System (ADS)

Plekhanov, Evgeny; Sacksteder, Vincent; Hasnip, Phil; Probert, Matt; Clark, Stewart; Weber, Cedric; Refson, Keith

We present the first implementation of Dynamical Mean-Field Theory in UK's major ab-initio code CASTEP. This implementation: i) is modular; ii) allows great flexibility in choosing local basis set for downfolding/upfolding of self-energy; iii) permits wide choice of impurity solvers (including external solver libraries); and iv) gives the user a possibility to use several self-consistency schemes and calculate total energy and forces. We explain in details the theoretical framework used. We benchmark our implementation on several strongly-correlated insulating systems with d- and f-shells: γ-Ce and Ce2O3 by using Hubbard I and CTHYB-QMC solvers. Our results appear to be in excellent agreement with the reference data published previously in the literature. EPSRC-funded project ''Strong Correlation meets Materials Modelling: DMFT and GW in CASTEP''.

USAF Support to Low Intensity Conflict: Three Case Studies From the 1980s

DTIC Science & Technology

1994-06-01

included armed reconnaissance provided by AC- 130H gunships, and an airdrop of USAF Combat Control Teams and Army Rangers . The main body for the...performance of elite units such as Delta Force, SEALS, Rangers , etc. did not justify the money spent or their claims of eliteness. AU Library Document M-43828...48Adkin, 132. 23 Figure 1 Task Organization for Joint Task Force 120. CJTF 120 Carribean Peacekeeping Force CTF 121 Airborne CTF 123 Rangers

YAP Version 4.0

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nelson, Eric M.

2004-05-20

The YAP software library computes (1) electromagnetic modes, (2) electrostatic fields, (3) magnetostatic fields and (4) particle trajectories in 2d and 3d models. The code employs finite element methods on unstructured grids of tetrahedral, hexahedral, prism and pyramid elements, with linear through cubic element shapes and basis functions to provide high accuracy. The novel particle tracker is robust, accurate and efficient, even on unstructured grids with discontinuous fields. This software library is a component of the MICHELLE 3d finite element gun code.

Collection development and outsourcing in academic health sciences libraries: a survey of current practices.

PubMed Central

Blecic, D D; Hollander, S; Lanier, D

1999-01-01

Academic health sciences libraries in the United States and Canada were surveyed regarding collection development trends, including their effect on approval plan and blanket order use, and use of outsourcing over the past four years. Results of the survey indicate that serials market forces, budgetary constraints, and growth in electronic resources purchasing have resulted in a decline in the acquisition of print items. As a result, approval plan use is being curtailed in many academic health sciences libraries. Although use of blanket orders is more stable, fewer than one-third of academic health sciences libraries report using them currently. The decline of print collections suggests that libraries should explore cooperative collection development of print materials to ensure access and preservation. The decline of approval plan use and the need for cooperative collection development may require additional effort for sound collection development. Libraries were also surveyed about their use of outsourcing. Some libraries reported outsourcing cataloging and shelf preparation of books, but none reported using outsourcing for resource selection. The reason given most often for outsourcing was that it resulted in cost savings. As expected, economic factors are driving both collection development and outsourcing practices. PMID:10219477

Providing consumer health information through institutional collaboration.

PubMed Central

Humphries, A W; Kochi, J K

1994-01-01

In the past several years, The Claude Moore Health Sciences Library of the University of Virginia Health Sciences Center (HSC) has noted a growing demand for consumer health information. However, because the primary role of the library is to provide information services to health professionals at the HSC, questions have been raised as to the amount of time, energy, and money that should be expended to provide health care information to consumers. The library staff, because it can provide special expertise regarding the availability and utilization of consumer health materials, has felt the responsibility to participate in HSC initiatives that reach a broad audience. Library efforts in that regard include assisting with inventory and management of patient education materials, participating in a community health promotion task force, collaborating with hospital departments in planning a consumer health information center, establishing a consumer health information reference section in the library, and obtaining a grant to offer a networked health information system to local public and community college libraries. Consumers of health information benefit from the enhanced services that result from combining the expertise of health professionals and patient educators with the information management skills of library staff. PMID:8136761

Citation analysis in journal rankings: medical informatics in the library and information science literature.

PubMed Central

Vishwanatham, R

1998-01-01

Medical informatics is an interdisciplinary field. Medical informatics articles will be found in the literature of various disciplines including library and information science publications. The purpose of this study was to provide an objectively ranked list of journals that publish medical informatics articles relevant to library and information science. Library Literature, Library and Information Science Abstracts, and Social Science Citation Index were used to identify articles published on the topic of medical informatics and to identify a ranked list of journals. This study also used citation analysis to identify the most frequently cited journals relevant to library and information science. PMID:9803294

Current Status of Protein Force Fields for Molecular Dynamics

PubMed Central

Lopes, Pedro E.M.; Guvench, Olgun

2015-01-01

Summary The current status of classical force fields for proteins is reviewed. These include additive force fields as well as the latest developments in the Drude and AMOEBA polarizable force fields. Parametrization strategies developed specifically for the Drude force field are described and compared with the additive CHARMM36 force field. Results from molecular simulations of proteins and small peptides are summarized to illustrate the performance of the Drude and AMOEBA force fields. PMID:25330958

Current Literature in Family Planning, November 1972, No. 51.

ERIC Educational Resources Information Center

Planned Parenthood--World Population, New York, NY. Katherine Dexter McCormick Library.

Abstracts of current publications in the fields of population and family planning are contained in this monthly acquisitions list of the Katherine Dexter McCormick Library, Planned Parenthood, New York. Organized in two parts, Part 1 contains an annotated list of the books most recently acquired by the Library, marked with its Library call number,…

On the Evolution of Library and Information Science Doctoral Dissertation Topics in North America (1960-2013)

ERIC Educational Resources Information Center

Shu, Fei; Larivière, Vincent; Mongeon, Philippe; Julien, Charles-Antoine; Piper, Andrew

2016-01-01

Since the 1960s, many scholars have questioned the relationship between library science and information science. This paper investigates LIS doctoral dissertations in terms of their topics and interdisciplinarity in the period 1960-2013. Results show that LIS is an interdisciplinary field in which library science and information science are…

Serendipity in the Stacks: Libraries, Information Architecture, and the Problems of Accidental Discovery

ERIC Educational Resources Information Center

Carr, Patrick L.

2015-01-01

Serendipity in the library stacks is generally regarded as a positive occurrence. While acknowledging its benefits, this essay draws on research in library science, information systems, and other fields to argue that, in two important respects, this form of discovery can be usefully framed as a problem. To make this argument, the essay examines…

U.S. Public Libraries and the Use of Web Technologies, 2010. A Closer Look

ERIC Educational Resources Information Center

Lietzau, Zeth; Helgren, Jamie

2011-01-01

It's well known that technology is changing at an increasingly rapid pace and that many public libraries throughout the United States are attempting to adopt new technologies to better reach their patrons. In trade journals, blogs, and at library conferences, professionals in the field have continually discussed the best methods for using web…

Communicating New Library Roles to Enable Digital Scholarship: A Review Article

ERIC Educational Resources Information Center

Cox, John

2016-01-01

Academic libraries enable a wide range of digital scholarship activities, increasingly as a partner rather than as a service provider. Communicating that shift in role is challenging, not least as digital scholarship is a new field with many players whose activities on campus can be disjointed. The library's actual and potential contributions need…

Making It to the Major Leagues: Career Movement between Library and Archival Professions and from Small College to Large University Libraries.

ERIC Educational Resources Information Center

Johnson, Timothy J.

2002-01-01

Examines issues of career movement and change between library and archival fields and from small colleges to large universities. Topics include professional education and training; initial career planning and placement; continuing education; scouting and mentoring; job market conditions; work experience and personal skills; professional…

Socio-Cultural Innovation through and by Public Libraries in Disadvantaged Neighbourhoods in Denmark: Concepts and Practices

ERIC Educational Resources Information Center

Delica, Kristian; Elbeshausen, Hans

2013-01-01

Introduction: Our paper describes three examples of how public libraries in at-risk-neighbourhoods have worked with social innovations in order to develop and strengthen their services for minority groups. The libraries were chosen because they are frontrunners in the field of cultural diversity and social inclusion in Denmark. Method: The…

MARC and the Library Service Center: Automation at Bargain Rates.

ERIC Educational Resources Information Center

Pearson, Karl M.

Despite recent research and development in the field of library automation, libraries have been unable to reap the benefits promised by technology due to the high cost of building and maintaining their own computer-based systems. Time-sharing and disc mass storage devices will bring automation costs, if spread over a number of users, within the…

Networking among Gerontological and Geriatric Resource Centers: Summary of a Survey.

ERIC Educational Resources Information Center

Rafferty, Eve

The desirability and format of a network among libraries and resource centers serving the gerontological/geriatric field were addressed in a research project funded by the Special Libraries Association. Heads of 50 gerontological and 50 geriatric libraries were surveyed by mail to determine if there was interest in a joint network, i.e., a formal…

Sources of Research on Ranganathan.

ERIC Educational Resources Information Center

Satija, Mohinder Partap

1987-01-01

Identifies and describes major sources of information on the life and work of Ranganathan, the leader of the Indian library movement and a major contributor to the fields of library and information science. (CLB)

All-Atom Internal Coordinate Mechanics (ICM) Force Field for Hexopyranoses and Glycoproteins.

PubMed

Arnautova, Yelena A; Abagyan, Ruben; Totrov, Maxim

2015-05-12

We present an extension of the all-atom internal-coordinate force field, ICMFF, that allows for simulation of heterogeneous systems including hexopyranose saccharides and glycan chains in addition to proteins. A library of standard glycan geometries containing α- and β-anomers of the most common hexapyranoses, i.e., d-galactose, d-glucose, d-mannose, d-xylose, l-fucose, N -acetylglucosamine, N -acetylgalactosamine, sialic, and glucuronic acids, is created based on the analysis of the saccharide structures reported in the Cambridge Structural Database. The new force field parameters include molecular electrostatic potential-derived partial atomic charges and the torsional parameters derived from quantum mechanical data for a collection of minimal molecular fragments and related molecules. The ϕ/ψ torsional parameters for different types of glycosidic linkages are developed using model compounds containing the key atoms in the full carbohydrates, i.e., glycosidic-linked tetrahydropyran-cyclohexane dimers. Target data for parameter optimization include two-dimensional energy surfaces corresponding to the ϕ/ψ glycosidic dihedral angles in the disaccharide analogues, as determined by quantum mechanical MP2/6-31G** single-point energies on HF/6-31G** optimized structures. To achieve better agreement with the observed geometries of glycosidic linkages, the bond angles at the O-linkage atoms are added to the internal variable set and the corresponding bond bending energy term is parametrized using quantum mechanical data. The resulting force field is validated on glycan chains of 1-12 residues from a set of high-resolution X-ray glycoprotein structures based on heavy atom root-mean-square deviations of the lowest-energy glycan conformations generated by the biased probability Monte Carlo (BPMC) molecular mechanics simulations from the native structures. The appropriate BPMC distributions for monosaccharide-monosaccharide and protein-glycan linkages are derived from the extensive analysis of conformational properties of glycoprotein structures reported in the Protein Data Bank. Use of the BPMC search leads to significant improvements in sampling efficiency for glycan simulations. Moreover, good agreement with the X-ray glycoprotein structures is achieved for all glycan chain lengths. Thus, average/median RMSDs are 0.81/0.68 Å for one-residue glycans and 1.32/1.47 Å for three-residue glycans. RMSD from the native structure for the lowest-energy conformation of the 12-residue glycan chain (PDB ID 3og2) is 1.53 Å. Additionally, results obtained for free short oligosaccharides using the new force field are in line with the available experimental data, i.e., the most populated conformations in solution are predicted to be the lowest energy ones. The newly developed parameters allow for the accurate modeling of linear and branched hexopyranose glycosides in heterogeneous systems.

A portrait of Fielding H Garrison (1870-1935): America's pioneering medical historian.

PubMed

Colman, Eric G

2004-11-01

Fielding Hudson Garrison once remarked that because his birthday fell on 5 November, Guy Fawkes Day, he was "fated to suffer from in-ward hell-fire and brimstone all [his] life". Though said in jest, Garrison was a vulnerable, melancholic and self-confessed lonely man who found solace in the papers, periodicals and books of the Army Medical Library-today's National Library of Medicine. Over the course of approximately 25 years, and often while working in his spare time, Garrison went from a clerk in the world's largest medical library to America's pioneering and, arguably, most prolific medical historian, past or present.

The professionalization of health librarianship in the UK between 1909 and 1978.

PubMed

Ferguson, Valerie

2005-09-01

Many strands exist within health information work and during the last century librarians in this field identified themselves through special groups or associations. This paper focuses on the key role of the Library Association Medical Section in the professional development of medical librarians in the United Kingdom up to 1978 when it merged with the Library Association Hospital Libraries and Handicapped Readers Group to create the Medical, Health and Welfare Group. Uniting to form a stronger organization, under the ultimate designation of the Health Libraries Group, was part of an evolutionary process. The invention and promotion of co-operative schemes, networking and educational opportunities for members, the publication of specialized material and the fostering of international relationships during the first three-quarters of the century are illuminated by personal reminiscences from some of the major participants in the field.

All about Simple Machines. Physical Science for Children[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

All kids know the word "work." But they probably don't understand that work happens whenever a force is used to move something--whether it's lifting a heavy object or playing on a see-saw. All About Simple Machines introduces kids to the concepts of forces, work and how machines are used to make work easier. Six simple machines are…

Motion and Balance. Physical Science in Action[TM]. Schlessinger Science Library. [Videotape].

ERIC Educational Resources Information Center

2000

Motion allows things to get done, to communicate and to travel. But is motion controlled? Students will learn about the universal laws that apply to motion, the forces that cause it and how it is related to balance. They will also discover why motion occurs when forces are out of control and learn more about this interesting concept by viewing…

Content analysis as a means of exploring research opportunities from a conference programme.

PubMed

Fourie, Ina

2012-09-01

Health librarians should keep up-to-date in a dynamic environment and accept the importance of continuing personal development (CPD) and growth in their critical reflection and creative thinking skills. They also need to acknowledge the potential value of research activity and the challenges of ongoing improvement and development. Conference programmes may prove a useful source of stimulation, especially if supplemented by creativity techniques, action research and the ideal of 'finding flow'. The article analyses the themes and papers presented at the 10th International Conference on International Medical Librarianship (ICML) to identify opportunities for further research, literature reviews, assessment of practices and services, etc. Content analysis approach to conference papers and suggestions for further action including supplementing with techniques of creativity and group input. A fairly extensive list of further actions (although not intended to be exhaustive) is suggested for the sixteen conference themes. Although subjective, the list might help to stimulate growth in research on health librarianship and demonstrate how one source of stimulation--conference programmes (regularly presented to medical library communities)--can be used. Content analysis has proven a constructive means of generating research questions from a conference programme. Content analysis and other methods aimed at stimulating creative and progressive thinking, including brainstorming, force field analysis, De Bono's 6 hats, creative swiping and creative visualisation, may prove equally useful and require further investigation. To ensure an ongoing cycle, these can be linked to action research. © 2012 The authors. Health Information and Libraries Journal © 2012 Health Libraries Group.

The protein structure prediction problem could be solved using the current PDB library

PubMed Central

Zhang, Yang; Skolnick, Jeffrey

2005-01-01

For single-domain proteins, we examine the completeness of the structures in the current Protein Data Bank (PDB) library for use in full-length model construction of unknown sequences. To address this issue, we employ a comprehensive benchmark set of 1,489 medium-size proteins that cover the PDB at the level of 35% sequence identity and identify templates by structure alignment. With homologous proteins excluded, we can always find similar folds to native with an average rms deviation (RMSD) from native of 2.5 Å with ≈82% alignment coverage. These template structures often contain a significant number of insertions/deletions. The tasser algorithm was applied to build full-length models, where continuous fragments are excised from the top-scoring templates and reassembled under the guide of an optimized force field, which includes consensus restraints taken from the templates and knowledge-based statistical potentials. For almost all targets (except for 2/1,489), the resultant full-length models have an RMSD to native below 6 Å (97% of them below 4 Å). On average, the RMSD of full-length models is 2.25 Å, with aligned regions improved from 2.5 Å to 1.88 Å, comparable with the accuracy of low-resolution experimental structures. Furthermore, starting from state-of-the-art structural alignments, we demonstrate a methodology that can consistently bring template-based alignments closer to native. These results are highly suggestive that the protein-folding problem can in principle be solved based on the current PDB library by developing efficient fold recognition algorithms that can recover such initial alignments. PMID:15653774

Introducing Information Literacy Competency Standards for Nursing.

PubMed

Phelps, Sue F; Hyde, Loree; Planchon Wolf, Julie

2015-01-01

The Association for College and Research Libraries published the Information Literacy Competency Standards for Nursing (ILCSN) in January 2014, written by a task force of the Health Sciences Interest Group of the American Library Association. The ILCSN describes skills ranging from basic to advanced information research competencies for students enrolled in nursing programs at all levels and for professional nurses. This article guides administrators and faculty in use of the standards to design programs and coursework in information skills to support evidence-based practice.

The DISAM Journal of International Security Assistance Management. Volume 31, Number 3, November 2009

DTIC Science & Technology

2009-11-01

violas. Pacifi c Partnership donated $700 worth of books to the main library in Apia for distribution to school libraries throughout the country...costs are concentrated over a shorter period of time and therefore seem to be greater. Ms. Peters’ talk is the fi rst of a series of book discussions...also buying secondhand aircraft or a service contract. A French Air Force spokesman said there is “a preference for the C-130J because of its size

The fast encryption package

NASA Technical Reports Server (NTRS)

Bishop, Matt

1988-01-01

The organization of some tools to help improve passwork security at a UNIX-based site is described along with how to install and use them. These tools and their associated library enable a site to force users to pick reasonably safe passwords (safe being site configurable) and to enable site management to try to crack existing passworks. The library contains various versions of a very fast implementation of the Data Encryption Standard and of the one-way encryption functions used to encryp the password.

Capturing the 'ome': the expanding molecular toolbox for RNA and DNA library construction.

PubMed

Boone, Morgane; De Koker, Andries; Callewaert, Nico

2018-04-06

All sequencing experiments and most functional genomics screens rely on the generation of libraries to comprehensively capture pools of targeted sequences. In the past decade especially, driven by the progress in the field of massively parallel sequencing, numerous studies have comprehensively assessed the impact of particular manipulations on library complexity and quality, and characterized the activities and specificities of several key enzymes used in library construction. Fortunately, careful protocol design and reagent choice can substantially mitigate many of these biases, and enable reliable representation of sequences in libraries. This review aims to guide the reader through the vast expanse of literature on the subject to promote informed library generation, independent of the application.

Levelling the Playing Field: The Role of Libraries in Providing Online Services for People with Disabilities.

ERIC Educational Resources Information Center

Williamson, Kirsty; Wright, Steve; Schauder, Don; Jenkins, Louise; Stillman, Larry

This study addressed, within the context of Australian public libraries, how people with disabilities can more easily share in the new world of instant information and communication offered by the Internet. Eight public libraries from Victoria and one from Wagga Wagga participated. The sample consisted of 85 adults with a variety of physical and…

Public Access to Library Automation. Clinic on Library Applications of Data Processing (17th, University of Illinois at Urbana-Champaign, 1980).

ERIC Educational Resources Information Center

Divilbiss, J. L., Ed.

Eight studies by experts in the field of information retrieval examine aspects of public use of such automated systems as online catalogs in libraries. Ward Shaw discusses "Design Principles for Public Access," outlining desirable characteristics of an information retrieval system. Allen Avner and H. George Friedman, Jr. treat problems…

Ethics Instruction in Library and Information Science: The Role of "Ethics across the Curriculum"

ERIC Educational Resources Information Center

Smith, Bernie Todd

2010-01-01

Ethics is an important element of most graduate professional training programs. In the field of Library and Information Science (LIS) the inclusion of ethics in the curriculum is supported by a position paper by library educators and is monitored in the accreditation of graduate programs. Despite the many LIS programs which claim to integrate…

Science Fiction: An Annotated Bibliography of Selected Resources in the University Libraries SUNY/Albany.

ERIC Educational Resources Information Center

Osielski, Mary Y., Comp.

This bibliography is a guide to sources of information in the field of science fiction which are available in the University Libraries at the State University of New York (SUNY) at Albany. Other libraries may find it useful as a reference tool for expanding their science fiction collections. Emphasis is on works which deal primarily with science…

The Internationalization of the Academic Library: A Systematic Review of 25 Years of Literature on International Students

ERIC Educational Resources Information Center

Click, Amanda B.; Wiley, Claire Walker; Houlihan, Meggan

2017-01-01

This study is a systematic review of the library and information science (LIS) literature related to international students and academic libraries. A systematic review involves the methodical collection and analysis of a body of literature and is growing in popularity in the LIS field. Three well-known LIS databases were systematically searched…

Just Another Field? LIS Programs Can, and Should, Reclaim the Education of Academic Librarians

ERIC Educational Resources Information Center

Crowley, Bill

2004-01-01

To transform humanists with Ph.D.'s into academic librarians is the purpose of an initiative recently launched by the Council on Library and Information Resources (CLIR). The equivalent of an apprenticeship, the program revolves postdoctoral work in an academic library in lieu of earning a master's degree from a library and information studies…

On the uses of diversity.

PubMed Central

Bishop, D

1976-01-01

An examination is made of the uses of diversity in medical library activities and personnel. This concept is extended also to the broader field of librarianship and to some forecasts of future directions for medical libraries. PMID:974292

MatchingTools: A Python library for symbolic effective field theory calculations

NASA Astrophysics Data System (ADS)

Criado, Juan C.

2018-06-01

MatchingTools is a Python library for doing symbolic calculations in effective field theory. It provides the tools to construct general models by defining their field content and their interaction Lagrangian. Once a model is given, the heavy particles can be integrated out at the tree level to obtain an effective Lagrangian in which only the light particles appear. After integration, some of the terms of the resulting Lagrangian might not be independent. MatchingTools contains functions for transforming these terms to rewrite them in terms of any chosen set of operators.

[Review of digital ground object spectral library].

PubMed

Zhou, Xiao-Hu; Zhou, Ding-Wu

2009-06-01

A higher spectral resolution is the main direction of developing remote sensing technology, and it is quite important to set up the digital ground object reflectance spectral database library, one of fundamental research fields in remote sensing application. Remote sensing application has been increasingly relying on ground object spectral characteristics, and quantitative analysis has been developed to a new stage. The present article summarized and systematically introduced the research status quo and development trend of digital ground object reflectance spectral libraries at home and in the world in recent years. Introducing the spectral libraries has been established, including desertification spectral database library, plants spectral database library, geological spectral database library, soil spectral database library, minerals spectral database library, cloud spectral database library, snow spectral database library, the atmosphere spectral database library, rocks spectral database library, water spectral database library, meteorites spectral database library, moon rock spectral database library, and man-made materials spectral database library, mixture spectral database library, volatile compounds spectral database library, and liquids spectral database library. In the process of establishing spectral database libraries, there have been some problems, such as the lack of uniform national spectral database standard and uniform standards for the ground object features as well as the comparability between different databases. In addition, data sharing mechanism can not be carried out, etc. This article also put forward some suggestions on those problems.

Levitation forces of a bulk YBCO superconductor in gradient varying magnetic fields

NASA Astrophysics Data System (ADS)

Jiang, J.; Gong, Y. M.; Wang, G.; Zhou, D. J.; Zhao, L. F.; Zhang, Y.; Zhao, Y.

2015-09-01

The levitation forces of a bulk YBCO superconductor in gradient varying high and low magnetic fields generated from a superconducting magnet were investigated. The magnetic field intensity of the superconducting magnet was measured when the exciting current was 90 A. The magnetic field gradient and magnetic force field were both calculated. The YBCO bulk was cooled by liquid nitrogen in field-cooling (FC) and zero-field-cooling (ZFC) condition. The results showed that the levitation forces increased with increasing the magnetic field intensity. Moreover, the levitation forces were more dependent on magnetic field gradient and magnetic force field than magnetic field intensity.

Medical Libraries of the Soviet Union *

PubMed Central

Morozov, A.

1964-01-01

Medical libraries are a part of the Soviet library system. The total number of medical libraries in the country is more than 4,000, with a collection of over 42,000,000 volumes that are used by over a million readers. The State Central Medical Library occupies a special place among these libraries. It carries out the functions of a methodological, bibliographic, and coordinating center. It has a collection of over 1,000,000 units of books and periodicals. All the bibliographic work of medical libraries as well as any other work is provided to help medical institutions. Libraries prepare special bibliographies of medical literature for publication according to a plan. The libraries also conduct reference and information work. The methodological work helps to solve the most important problems that arise in libraries with reference to the specific character of their work and tasks. The chief means of rendering methodological guidance are to analyze the work of various libraries, to hold conferences, to exchange visits with libraries, to give both field and correspondence consultations, and to organize qualification courses for librarians and bibliographers. PMID:14119299

Trust, Voice, and Library 2.0

ERIC Educational Resources Information Center

Watkins, Candice

2009-01-01

Web 2.0 is a constant and growing theme in the library field. This article describes a social networking site based on a Web 2.0 infused course management system (CMS) developed by Clatsop Community College in Astoria, Oregon.

Libraries of High and Mid-Resolution Spectra of F, G, K, and M Field Stars

NASA Astrophysics Data System (ADS)

Montes, D.

1998-06-01

I have compiled here the three libraries of high and mid-resolution optical spectra of late-type stars I have recently published. The libraries include F, G, K and M field stars, from dwarfs to giants. The spectral coverage is from 3800 to 1000 Å, with spectral resolution ranging from 0.09 to 3.0 Å. These spectra include many of the spectral lines most widely used as optical and near-infrared indicators of chromospheric activity. The spectra have been obtained with the aim of providing a library of high and mid-resolution spectra to be used in the study of active chromosphere stars by applying a spectral subtraction technique. However, the data set presented here can also be utilized in a wide variety of ways. A digital version of all the fully reduced spectra is available via FTP and the World Wide Web (WWW) in FITS format.

Recent advances in the structural library of functionalized quinazoline and quinazolinone scaffolds: synthetic approaches and multifarious applications.

PubMed

Khan, Imtiaz; Ibrar, Aliya; Abbas, Naeem; Saeed, Aamer

2014-04-09

Drug development has been a principal driving force in the rapid maturation of the field of medicinal chemistry during the past several decades. During this period, the intriguing and challenging molecular architectures of nitrogen-containing heterocycles with potential bioactive properties have received significant attention from researchers engaged in the areas of natural product synthesis and heterocyclic methodology, and constituted a continuous stimulus for development in bio(organic) chemistry. In this perspective, the current review article is an effort to summarize recent developments in the environmentally benign synthetic methods providing access to quinazoline and quinazolinone scaffolds with promising biological potential. This article also aims to discuss potential future directions on the development of more potent and specific analogues for various biological targets. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

Development of Library and Information Science Periodicals in Asia, with Emphasis on South Asia: Problems and Solutions.

ERIC Educational Resources Information Center

Sharma, R. N.

During the 20th century, Asian countries have been very active in publishing books and journals in the field of library and information science. Journals have been published in English as well as in many vernacular languages. This paper deals with the development of Asian library journals, with an emphasis on South Asia. Japan was the first Asian…

Trends and Innovations in North American Libraries with an Emphasis on Developments in Canada, Especially Ontario. A Course Outline and Bibliographies.

ERIC Educational Resources Information Center

Palmer, Joseph W.

This outline for a graduate library school course at the State University of New York at Buffalo emphasizes trends and developments in North American librarianship with primary emphasis on Canada (especially Ontario). The participation of Canadian authorities as guest lecturers and field trips to Canadian libraries are important elements in the…

PTools: an opensource molecular docking library

PubMed Central

Saladin, Adrien; Fiorucci, Sébastien; Poulain, Pierre; Prévost, Chantal; Zacharias, Martin

2009-01-01

Background Macromolecular docking is a challenging field of bioinformatics. Developing new algorithms is a slow process generally involving routine tasks that should be found in a robust library and not programmed from scratch for every new software application. Results We present an object-oriented Python/C++ library to help the development of new docking methods. This library contains low-level routines like PDB-format manipulation functions as well as high-level tools for docking and analyzing results. We also illustrate the ease of use of this library with the detailed implementation of a 3-body docking procedure. Conclusion The PTools library can handle molecules at coarse-grained or atomic resolution and allows users to rapidly develop new software. The library is already in use for protein-protein and protein-DNA docking with the ATTRACT program and for simulation analysis. This library is freely available under the GNU GPL license, together with detailed documentation. PMID:19409097

PTools: an opensource molecular docking library.

PubMed

Saladin, Adrien; Fiorucci, Sébastien; Poulain, Pierre; Prévost, Chantal; Zacharias, Martin

2009-05-01

Macromolecular docking is a challenging field of bioinformatics. Developing new algorithms is a slow process generally involving routine tasks that should be found in a robust library and not programmed from scratch for every new software application. We present an object-oriented Python/C++ library to help the development of new docking methods. This library contains low-level routines like PDB-format manipulation functions as well as high-level tools for docking and analyzing results. We also illustrate the ease of use of this library with the detailed implementation of a 3-body docking procedure. The PTools library can handle molecules at coarse-grained or atomic resolution and allows users to rapidly develop new software. The library is already in use for protein-protein and protein-DNA docking with the ATTRACT program and for simulation analysis. This library is freely available under the GNU GPL license, together with detailed documentation.

An Investigation of the Educational Needs of Health Sciences Library Manpower: IV. Characteristics of Manpower in Health Sciences Libraries *

PubMed Central

Rothenberg, Lesliebeth; Rees, Alan M.; Kronick, David A.

1971-01-01

A statistical description based on a mail survey of personnel in 2,099 health sciences libraries located outside of the hospital setting is reported. Respondents to the survey were divided into three groups: professionals (those possessing a graduate library degree); nonprofessionals (those not possessing a graduate library degree); and chief librarians (those responsible for a library's operations). Survey items dealt with education, sex, age, salary, job mobility and preference for continuing education programs. Some 60 percent of the respondents were professionals; 40 percent were nonprofessionals. Seven hundred and twenty-eight chief librarians were identified in the population: 57 percent were professional librarians while the remainder were without a graduate library degree. Approximately ⅕ of all survey respondents were men. The age distribution for the work force tended to be bimodal, reflecting the career patterns of women and the later entry of men into librarianship. The annual salary for male professionals was calculated at $12,732; for female professionals at $10,044; for male nonprofessionals at $7,878; and for female nonprofessionals at $6,313. Male professionals were found to have the highest rates of job and geographic mobility. Conversely, female nonprofessionals were lowest in mobility. In expressing a preference for continuing education programs in library science, professionals tended to request courses dealing with the organization of libraries, health sciences institutions and their relationships, while nonprofessionals inclined towards courses in technical processing. PMID:5542914

ON ESTIMATING FORCE-FREENESS BASED ON OBSERVED MAGNETOGRAMS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhang, X. M.; Zhang, M.; Su, J. T., E-mail: xmzhang@nao.cas.cn

It is a common practice in the solar physics community to test whether or not measured photospheric or chromospheric vector magnetograms are force-free, using the Maxwell stress as a measure. Some previous studies have suggested that magnetic fields of active regions in the solar chromosphere are close to being force-free whereas there is no consistency among previous studies on whether magnetic fields of active regions in the solar photosphere are force-free or not. Here we use three kinds of representative magnetic fields (analytical force-free solutions, modeled solar-like force-free fields, and observed non-force-free fields) to discuss how measurement issues such asmore » limited field of view (FOV), instrument sensitivity, and measurement error could affect the estimation of force-freeness based on observed magnetograms. Unlike previous studies that focus on discussing the effect of limited FOV or instrument sensitivity, our calculation shows that just measurement error alone can significantly influence the results of estimates of force-freeness, due to the fact that measurement errors in horizontal magnetic fields are usually ten times larger than those in vertical fields. This property of measurement errors, interacting with the particular form of a formula for estimating force-freeness, would result in wrong judgments of the force-freeness: a truly force-free field may be mistakenly estimated as being non-force-free and a truly non-force-free field may be estimated as being force-free. Our analysis calls for caution when interpreting estimates of force-freeness based on measured magnetograms, and also suggests that the true photospheric magnetic field may be further away from being force-free than it currently appears to be.« less

T-vector and in vivo recombination as tools to construct a large antibody library of breast cancer.

PubMed

Lv, Yong-Gang; Wang, Ting; Yuan, Shi-Fang; Li, Nan-Lin; Chen, Jiang-Hao; Zhao, Ai-Zhi; Ling, Rui; Wang, Ling

2010-06-01

The emergence of phage antibody libraries is an important advance in the field of antibody engineering. It provides a useful methodology to produce human antibodies and has the potential to replace traditional hybridoma technology. In our research, we used T-vector and in vivo recombination to construct a large antibody library from breast cancer patients. The use of T-vector considerably increased the cloning efficiency, and the diversity of the library could be increased easily using in vivo recombination. Taken together, a combination of these two techniques might be valuable in constructing a large antibody library.

Efficient preparation of shuffled DNA libraries through recombination (Gateway) cloning.

PubMed

Lehtonen, Soili I; Taskinen, Barbara; Ojala, Elina; Kukkurainen, Sampo; Rahikainen, Rolle; Riihimäki, Tiina A; Laitinen, Olli H; Kulomaa, Markku S; Hytönen, Vesa P

2015-01-01

Efficient and robust subcloning is essential for the construction of high-diversity DNA libraries in the field of directed evolution. We have developed a more efficient method for the subcloning of DNA-shuffled libraries by employing recombination cloning (Gateway). The Gateway cloning procedure was performed directly after the gene reassembly reaction, without additional purification and amplification steps, thus simplifying the conventional DNA shuffling protocols. Recombination-based cloning, directly from the heterologous reassembly reaction, conserved the high quality of the library and reduced the time required for the library construction. The described method is generally compatible for the construction of DNA-shuffled gene libraries. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

Information and informatics literacies of first-year medical students

PubMed Central

Bouquin, Daina R.; Tmanova, Lyubov L.; Wright, Drew

2015-01-01

Purpose The study evaluated medical students' familiarity with information literacy and informatics during the health sciences library orientation. Methods A survey was fielded at the start of the 2013 school year. Results Seventy-two of 77 students (94%) completed the survey. Over one-half (57%) expected to use library research materials and services. About half (43%) expected to use library physical space. Students preferred accessing biomedical research on laptops and learning via online-asynchronous modes. Conclusions The library identified areas for service development and outreach to medical students and academic departments. PMID:26512221

Saving a Book Cathedral from Pollution

ERIC Educational Resources Information Center

Morgan, Michael

1974-01-01

The forces of dust and dirt, combined with uncontrolled heat and humidity, are assaulting the Peabody Library's fine collection and the distinguished structure that houses it. Funds are being raised to control the climate and repair damaged materials. (LS)

CHARMM additive and polarizable force fields for biophysics and computer-aided drug design

PubMed Central

Vanommeslaeghe, K.

2014-01-01

Background Molecular Mechanics (MM) is the method of choice for computational studies of biomolecular systems owing to its modest computational cost, which makes it possible to routinely perform molecular dynamics (MD) simulations on chemical systems of biophysical and biomedical relevance. Scope of Review As one of the main factors limiting the accuracy of MD results is the empirical force field used, the present paper offers a review of recent developments in the CHARMM additive force field, one of the most popular bimolecular force fields. Additionally, we present a detailed discussion of the CHARMM Drude polarizable force field, anticipating a growth in the importance and utilization of polarizable force fields in the near future. Throughout the discussion emphasis is placed on the force fields’ parametrization philosophy and methodology. Major Conclusions Recent improvements in the CHARMM additive force field are mostly related to newly found weaknesses in the previous generation of additive force fields. Beyond the additive approximation is the newly available CHARMM Drude polarizable force field, which allows for MD simulations of up to 1 microsecond on proteins, DNA, lipids and carbohydrates. General Significance Addressing the limitations ensures the reliability of the new CHARMM36 additive force field for the types of calculations that are presently coming into routine computational reach while the availability of the Drude polarizable force fields offers a model that is an inherently more accurate model of the underlying physical forces driving macromolecular structures and dynamics. PMID:25149274

Tandem mass spectrometry spectral libraries and library searching.

PubMed

Deutsch, Eric W

2011-01-01

Spectral library searching in the field of proteomics has been gaining visibility and use in the last few years, primarily due to the expansion of public proteomics data repositories and the large spectral libraries that can be generated from them. Spectral library searching has several advantages over conventional sequence searching: it is generally much faster, and has higher specificity and sensitivity. The speed increase is primarily, due to having a smaller, fully indexable search space of real spectra that are known to be observable. The increase in specificity and sensitivity is primarily due to the ability of a search engine to utilize the known intensities of the fragment ions, rather than just comparing with theoretical spectra as is done with sequence searching. The main disadvantage of spectral library searching is that one can only identify peptide ions that have been seen before and are stored in the spectral library. In this chapter, an overview of spectral library searching and the libraries currently available are presented.

CHARMM additive and polarizable force fields for biophysics and computer-aided drug design.

PubMed

Vanommeslaeghe, K; MacKerell, A D

2015-05-01

Molecular Mechanics (MM) is the method of choice for computational studies of biomolecular systems owing to its modest computational cost, which makes it possible to routinely perform molecular dynamics (MD) simulations on chemical systems of biophysical and biomedical relevance. As one of the main factors limiting the accuracy of MD results is the empirical force field used, the present paper offers a review of recent developments in the CHARMM additive force field, one of the most popular biomolecular force fields. Additionally, we present a detailed discussion of the CHARMM Drude polarizable force field, anticipating a growth in the importance and utilization of polarizable force fields in the near future. Throughout the discussion emphasis is placed on the force fields' parametrization philosophy and methodology. Recent improvements in the CHARMM additive force field are mostly related to newly found weaknesses in the previous generation of additive force fields. Beyond the additive approximation is the newly available CHARMM Drude polarizable force field, which allows for MD simulations of up to 1μs on proteins, DNA, lipids and carbohydrates. Addressing the limitations ensures the reliability of the new CHARMM36 additive force field for the types of calculations that are presently coming into routine computational reach while the availability of the Drude polarizable force fields offers an inherently more accurate model of the underlying physical forces driving macromolecular structures and dynamics. This article is part of a Special Issue entitled "Recent developments of molecular dynamics". Copyright © 2014 Elsevier B.V. All rights reserved.

Development of full wave code for modeling RF fields in hot non-uniform plasmas

NASA Astrophysics Data System (ADS)

Zhao, Liangji; Svidzinski, Vladimir; Spencer, Andrew; Kim, Jin-Soo

2016-10-01

FAR-TECH, Inc. is developing a full wave RF modeling code to model RF fields in fusion devices and in general plasma applications. As an important component of the code, an adaptive meshless technique is introduced to solve the wave equations, which allows resolving plasma resonances efficiently and adapting to the complexity of antenna geometry and device boundary. The computational points are generated using either a point elimination method or a force balancing method based on the monitor function, which is calculated by solving the cold plasma dispersion equation locally. Another part of the code is the conductivity kernel calculation, used for modeling the nonlocal hot plasma dielectric response. The conductivity kernel is calculated on a coarse grid of test points and then interpolated linearly onto the computational points. All the components of the code are parallelized using MPI and OpenMP libraries to optimize the execution speed and memory. The algorithm and the results of our numerical approach to solving 2-D wave equations in a tokamak geometry will be presented. Work is supported by the U.S. DOE SBIR program.

15. Photocopy of photograph (original print at Riverside Library, Local ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

15. Photocopy of photograph (original print at Riverside Library, Local History Collection), photographer and date unknown. VIEW OF BARNS, STABLE AND FIELD EQUIPMENT, ARLINGTON HEIGHTS FRUIT COMPANY, EXACT LOCATION UNKNOWN - California Citrus Heritage Recording Project, Riverside, Riverside County, CA

Library Research Handbook for Faculty and Graduate Students at the College of Engineering. A Selective Guide to Engineering Reference Materials at the Library of Science & Medicine.

ERIC Educational Resources Information Center

Wu, Connie

This handbook identifies the major reference sources for various engineering fields at the Library of Science and Medicine (LSM) at Rutgers University. The resources are divided into 15 categories and provide full call numbers and locations for every title. These categories include: (1) Card Catalog and Online Catalog; (2) Guide to the Literature…

In-Service Training in South African Libraries. A Brief Review Based on a Thesis for the M.Bibl. Degree of the University of Pretoria.

ERIC Educational Resources Information Center

Vink, C. M.

A study was undertaken to ascertain the position of inservice training for librarians in South Africa and to determine what adjustments were necessary for inservice training practice in South African libraries. An examination of the literature on inservice training revealed current trends, and the literature in the field of library science was…

Changing Dimensions: Managing Library and Information Services for the 1990s: A Global Perspective. Proceedings of the Asian/Pacific American Librarians Association [Conference] (Atlanta, Georgia, July 1, 1991).

ERIC Educational Resources Information Center

Sharma, Ravindra Nath, Ed.

The theme of the 1991 Asian/Pacific American Librarians Association (APALA) was "Changing Dimensions: Managing Library Information Services for the 1990s and Beyond." Members and speakers were invited to discuss this topic from all dimensions of library and information related fields. Presenters had the options either to write on actual…

Library Research in Criminal Justice. An Introduction for Students at John Jay College of Criminal Justice, City University of New York. Second Edition.

ERIC Educational Resources Information Center

Lutzker, Marilyn

This introductory guide to basic library research tools in the field of criminal justice was compiled for use by students at the John Jay College of Criminal Justice as part of the Library Instruction Program. Included are chapters on devising a search strategy; the use of the card catalog; encyclopedia and dictionaries; indexes and abstracts;…

A Demonstration Pilot Project of Comprehensive Library Services for the Aged in Selected Communities in Kentucky (NRTA/AARP Kentucky Library Project). Final Report, Phase 1.

ERIC Educational Resources Information Center

Carlson, Lawrence O.

The project, intended to design and field test models of specialized library services for older adults, was conducted in two parts. Phase 1 consisted of collecting and evaluating data for use in designing models in Louisville, Lexington, Somerset, and Hazard, Kentucky. Data was collected by search of the literature, personal interviews, a…

Educating Black Librarians. Papers from the 50th Anniversary Celebration of the School of Library and Information Sciences, North Carolina Central University.

ERIC Educational Resources Information Center

Speller, Benjamin F., Jr., Ed.

This document assembles 16 papers given at a 1989 symposium in honor of the 50th anniversary of the School of Library and Information Sciences at North Carolina Central University, Durham (NCCU). The papers examine the past, present, and future of the participation of African Americans in the field of library and information service. Titles…

DNA-encoded chemical libraries: advancing beyond conventional small-molecule libraries.

PubMed

Franzini, Raphael M; Neri, Dario; Scheuermann, Jörg

2014-04-15

DNA-encoded chemical libraries (DECLs) represent a promising tool in drug discovery. DECL technology allows the synthesis and screening of chemical libraries of unprecedented size at moderate costs. In analogy to phage-display technology, where large antibody libraries are displayed on the surface of filamentous phage and are genetically encoded in the phage genome, DECLs feature the display of individual small organic chemical moieties on DNA fragments serving as amplifiable identification barcodes. The DNA-tag facilitates the synthesis and allows the simultaneous screening of very large sets of compounds (up to billions of molecules), because the hit compounds can easily be identified and quantified by PCR-amplification of the DNA-barcode followed by high-throughput DNA sequencing. Several approaches have been used to generate DECLs, differing both in the methods used for library encoding and for the combinatorial assembly of chemical moieties. For example, DECLs can be used for fragment-based drug discovery, displaying a single molecule on DNA or two chemical moieties at the extremities of complementary DNA strands. DECLs can vary substantially in the chemical structures and the library size. While ultralarge libraries containing billions of compounds have been reported containing four or more sets of building blocks, also smaller libraries have been shown to be efficient for ligand discovery. In general, it has been found that the overall library size is a poor predictor for library performance and that the number and diversity of the building blocks are rather important indicators. Smaller libraries consisting of two to three sets of building blocks better fulfill the criteria of drug-likeness and often have higher quality. In this Account, we present advances in the DECL field from proof-of-principle studies to practical applications for drug discovery, both in industry and in academia. DECL technology can yield specific binders to a variety of target proteins and is likely to become a standard tool for pharmaceutical hit discovery, lead expansion, and Chemical Biology research. The introduction of new methodologies for library encoding and for compound synthesis in the presence of DNA is an exciting research field and will crucially contribute to the performance and the propagation of the technology.

A Building-Resolved Wind Field Library for Vancouver: Facilitating CBRN Emergency Response for the 2010 Winter Olympic Games

DTIC Science & Technology

2010-06-01

Vancouver. Facilitating CBRN Emergency Response for the 2010 Winter Olympic Games E. Vee Defence R&D Canada- Suffield F.-S. Lien University of...ana a A Building-Resolved Wind Field Library for Vancouver. Facilitating CBRN Emergency Response for the 2010 Winter Olympic Games E. Yee Defence...support of emergency response applications (requiring quick turn- around times) for the 2010 Winter Olympic Games . To this purpose, mean wind and

Swimming With the Natives: Cultural Immersion and Its Applications to Naval Special Warfare

DTIC Science & Technology

2004-09-01

refer to as the “Struggle against the ‘Great Demon’ or ‘Great Satan ’”—which in turn refers to the western forces and their coalitions. The cell...the Cairo Bulletin, which is a sort of bible to them. (Wilson, 1990, p. 949) 28 As he had intended, Lawrence was able to use his cultural immersion...21, 2004, from http://www.oft.osd.mil/library/ library_files/document_377_National%20Military%20Strategy%2013%20May% 2004. pdf Johnson, C. (1982

Recent Developments and Applications of the CHARMM force fields

PubMed Central

Zhu, Xiao; Lopes, Pedro E.M.; MacKerell, Alexander D.

2011-01-01

Empirical force fields commonly used to describe the condensed phase properties of complex systems such as biological macromolecules are continuously being updated. Improvements in quantum mechanical (QM) methods used to generate target data, availability of new experimental target data, incorporation of new classes of compounds and new theoretical developments (eg. polarizable methods) make force-field development a dynamic domain of research. Accordingly, a number of improvements and extensions of the CHARMM force fields have occurred over the years. The objective of the present review is to provide an up-to-date overview of the CHARMM force fields. A limited presentation on the historical aspects of force fields will be given, including underlying methodologies and principles, along with a brief description of the strategies used for parameter development. This is followed by information on the CHARMM additive and polarizable force fields, including examples of recent applications of those force fields. PMID:23066428

Toward a Work-Force Analysis of the School Library Media Professional.

ERIC Educational Resources Information Center

Heim, Kathleen M.

1981-01-01

Summarizes general demographic and salary data to focus on entry levels, the current employment universe of school librarians, and the salary data for building-level librarians in 1979-80. More than 27 references are listed. (RAA)

The Astronomy Collections: From the Project to the Laboratory

NASA Astrophysics Data System (ADS)

Bobis, L.

2015-04-01

Within some astronomical libraries, just as it is with other libraries, there are collections we might refer to as being in "the border zone." The materials most representative of this are those that relate to an institution's heritage and history. The challenges of these patrimonial collections are scientific, legal, economic, and political. These collections establish the scientific status of their respective libraries because they extend beyond meeting the needs of astronomers: the material is important in defining the history of the field. The influence of these libraries derives from these heritage materials. From this point of view, the library is a worksite and a laboratory for librarians, project managers, and researchers.

The ADL Registry and CORDRA. Volume 1: General Overview

DTIC Science & Technology

2008-08-01

and problems encountered by others in related fields, such as library science , computer and network systems design, and publishing. As ADL...in and exist in isolated islands, limiting their visibility, access, and reuse. 4 Compared to publishing and library science , the learning

Current Research.

ERIC Educational Resources Information Center

Eisenberg, Michael B.; And Others

1993-01-01

Includes three articles about research in the school library media field: (1) "The State of Research Today" (Michael B. Eisenberg) (2) "Recent Trends in School Library Media Research" (Robert Grover and Susan G. Fowler); and (3) "Notes from ERIC" (Barbara Minor) provides references to 10 research overviews and…

The effect of force feedback delay on stiffness perception and grip force modulation during tool-mediated interaction with elastic force fields

PubMed Central

Karniel, Amir; Nisky, Ilana

2015-01-01

During interaction with objects, we form an internal representation of their mechanical properties. This representation is used for perception and for guiding actions, such as in precision grip, where grip force is modulated with the predicted load forces. In this study, we explored the relationship between grip force adjustment and perception of stiffness during interaction with linear elastic force fields. In a forced-choice paradigm, participants probed pairs of virtual force fields while grasping a force sensor that was attached to a haptic device. For each pair, they were asked which field had higher level of stiffness. In half of the pairs, the force feedback of one of the fields was delayed. Participants underestimated the stiffness of the delayed field relatively to the nondelayed, but their grip force characteristics were similar in both conditions. We analyzed the magnitude of the grip force and the lag between the grip force and the load force in the exploratory probing movements within each trial. Right before answering which force field had higher level of stiffness, both magnitude and lag were similar between delayed and nondelayed force fields. These results suggest that an accurate internal representation of environment stiffness and time delay was used for adjusting the grip force. However, this representation did not help in eliminating the bias in stiffness perception. We argue that during performance of a perceptual task that is based on proprioceptive feedback, separate neural mechanisms are responsible for perception and action-related computations in the brain. PMID:25717155

The effect of force feedback delay on stiffness perception and grip force modulation during tool-mediated interaction with elastic force fields.

PubMed

Leib, Raz; Karniel, Amir; Nisky, Ilana

2015-05-01

During interaction with objects, we form an internal representation of their mechanical properties. This representation is used for perception and for guiding actions, such as in precision grip, where grip force is modulated with the predicted load forces. In this study, we explored the relationship between grip force adjustment and perception of stiffness during interaction with linear elastic force fields. In a forced-choice paradigm, participants probed pairs of virtual force fields while grasping a force sensor that was attached to a haptic device. For each pair, they were asked which field had higher level of stiffness. In half of the pairs, the force feedback of one of the fields was delayed. Participants underestimated the stiffness of the delayed field relatively to the nondelayed, but their grip force characteristics were similar in both conditions. We analyzed the magnitude of the grip force and the lag between the grip force and the load force in the exploratory probing movements within each trial. Right before answering which force field had higher level of stiffness, both magnitude and lag were similar between delayed and nondelayed force fields. These results suggest that an accurate internal representation of environment stiffness and time delay was used for adjusting the grip force. However, this representation did not help in eliminating the bias in stiffness perception. We argue that during performance of a perceptual task that is based on proprioceptive feedback, separate neural mechanisms are responsible for perception and action-related computations in the brain. Copyright © 2015 the American Physiological Society.

Market-Based Adult Lifelong Learning Performance Measures for Public Libraries Serving Lower Income and Majority-Minority Markets. Final Performance Report. September 1, 1996-August 31, 1999.

ERIC Educational Resources Information Center

Koontz, Christine; Jue, Dean K.; Lance, Keith Curry

This document is the final performance report for a Field Initiated Studies (FIS) project that addressed the need for a better assessment of public library services for adult lifelong learning in majority-minority and lower income library market areas. After stating the major educational problem addressed by the FIS project, the report lists the…

An Indexed Combinatorial Library: The Synthesis and Testing of Insect Repellents

NASA Astrophysics Data System (ADS)

Miles, William H.; Gelato, Kathy A.; Pompizzi, Kristen M.; Scarbinsky, Aislinn M.; Albrecht, Brian K.; Reynolds, Elaine R.

2001-04-01

An indexed combinatorial library of amides was prepared by the reaction of amines and acid chlorides. A simple test for insect repellency using fruit flies (Drosophila melanogaster) allowed the determination of the most repellent sublibraries. The student-generated data were collected and analyzed to determine the most active amide(s) in the library. This experiment illustrates the fundamentals of combinatorial chemistry, a field that has undergone explosive growth in the last decade.

Evidence-based medicine and the development of medical libraries in China.

PubMed

Huang, Michael Bailou; Cheng, Aijun; Ma, Lu

2009-07-01

This article elaborates on the opportunities and challenges that evidence-based medicine (EBM) has posed to the development of medical libraries and summarizes the research in the field of evidence-based medicine and achievements of EBM practice in Chinese medical libraries. Issues such as building collections of information resources, transformation of information services models, human resources management, and training of medical librarians, clinicians, and EBM users are addressed. In view of problems encountered in EBM research and practice, several suggestions are made about important roles medical libraries can play in the future development of EBM in China.

Simulated convective systems using a cloud resolving model: Impact of large-scale temperature and moisture forcing using observations and GEOS-3 reanalysis

NASA Technical Reports Server (NTRS)

Shie, C.-L.; Tao, W.-K.; Hou, A.; Lin, X.

2006-01-01

The GCE (Goddard Cumulus Ensemble) model, which has been developed and improved at NASA Goddard Space Flight Center over the past two decades, is considered as one of the finer and state-of-the-art CRMs (Cloud Resolving Models) in the research community. As the chosen CRM for a NASA Interdisciplinary Science (IDS) Project, GCE has recently been successfully upgraded into an MPI (Message Passing Interface) version with which great improvement has been achieved in computational efficiency, scalability, and portability. By basically using the large-scale temperature and moisture advective forcing, as well as the temperature, water vapor and wind fields obtained from TRMM (Tropical Rainfall Measuring Mission) field experiments such as SCSMEX (South China Sea Monsoon Experiment) and KWAJEX (Kwajalein Experiment), our recent 2-D and 3-D GCE simulations were able to capture detailed convective systems typical of the targeted (simulated) regions. The GEOS-3 [Goddard EOS (Earth Observing System) Version-3] reanalysis data have also been proposed and successfully implemented for usage in the proposed/performed GCE long-term simulations (i.e., aiming at producing massive simulated cloud data -- Cloud Library) in compensating the scarcity of real field experimental data in both time and space (location). Preliminary 2-D or 3-D pilot results using GEOS-3 data have generally showed good qualitative agreement (yet some quantitative difference) with the respective numerical results using the SCSMEX observations. The first objective of this paper is to ensure the GEOS-3 data quality by comparing the model results obtained from several pairs of simulations using the real observations and GEOS-3 reanalysis data. The different large-scale advective forcing obtained from these two kinds of resources (i.e., sounding observations and GEOS-3 reanalysis) has been considered as a major critical factor in producing various model results. The second objective of this paper is therefore to investigate and present such an impact of large-scale forcing on various modeled quantities (such as hydrometeors, rainfall, and etc.). A third objective is to validate the overall GCE 3-D model performance by comparing the numerical results with sounding observations, as well as available satellite retrievals.

Introducing Electronic Encyclopedias to Young Children.

ERIC Educational Resources Information Center

Human, Suzanne

1997-01-01

To teach computer skills to kindergartners, classroom teachers and library media specialists can take them on a multimedia field trip to the zoo. Provides a lesson plan that lists library media objectives, resources, instructional roles, activity and procedures for completion, class instructions, evaluation, and follow-up. (PEN)

Knowledge Network Values: Learning at Risk?

ERIC Educational Resources Information Center

Young, Peter R.

The boundaries between various information, entertainment, and communication fields are shifting. The edges between our library systems and communication networks are becoming increasingly fuzzy. These fuzzy edges affect concepts of education, learning, and knowledge. The existing library paradigm does not easily accommodate the new, fluid and…

Distance Learning. Transforming Libraries Number 6.

ERIC Educational Resources Information Center

Jones, William G.

1998-01-01

This report explores the diverse ways that libraries are currently supporting distance learning, both in its traditional and newer Internet-based forms. Based on interviews with administrators and staff, the following "Reports from the Field" reflect developments in public institutions: "UNET (University of Maine System Network)…

For Distinguished Public Service: Medical Library Association Honors FNLM and NIH MedlinePlus Magazine | NIH ...

MedlinePlus

... warm and mutually appreciative relationship with the Medical Library Association (MLA) and its more than 3,600 individual members, representing more than 1,100 institutions in the health sciences information field. They do wonderful work educating health ...

Use of Massive Parallel Computing Libraries in the Context of Global Gravity Field Determination from Satellite Data

NASA Astrophysics Data System (ADS)

Brockmann, J. M.; Schuh, W.-D.

2011-07-01

The estimation of the global Earth's gravity field parametrized as a finite spherical harmonic series is computationally demanding. The computational effort depends on the one hand on the maximal resolution of the spherical harmonic expansion (i.e. the number of parameters to be estimated) and on the other hand on the number of observations (which are several millions for e.g. observations from the GOCE satellite missions). To circumvent these restrictions, a massive parallel software based on high-performance computing (HPC) libraries as ScaLAPACK, PBLAS and BLACS was designed in the context of GOCE HPF WP6000 and the GOCO consortium. A prerequisite for the use of these libraries is that all matrices are block-cyclic distributed on a processor grid comprised by a large number of (distributed memory) computers. Using this set of standard HPC libraries has the benefit that once the matrices are distributed across the computer cluster, a huge set of efficient and highly scalable linear algebra operations can be used.

Reparameterization of RNA chi Torsion Parameters for the AMBER Force Field and Comparison to NMR Spectra for Cytidine and Uridine.

PubMed

Yildirim, Ilyas; Stern, Harry A; Kennedy, Scott D; Tubbs, Jason D; Turner, Douglas H

2010-05-11

A reparameterization of the torsional parameters for the glycosidic dihedral angle, chi, for the AMBER99 force field in RNA nucleosides is used to provide a modified force field, AMBER99chi. Molecular dynamics simulations of cytidine, uridine, adenosine, and guanosine in aqueous solution using the AMBER99 and AMBER99chi force fields are compared with NMR results. For each nucleoside and force field, 10 individual molecular dynamics simulations of 30 ns each were run. For cytidine with AMBER99chi force field, each molecular dynamics simulation time was extended to 120 ns for convergence purposes. Nuclear magnetic resonance (NMR) spectroscopy, including one-dimensional (1D) (1)H, steady-state 1D (1)H nuclear Overhauser effect (NOE), and transient 1D (1)H NOE, was used to determine the sugar puckering and preferred base orientation with respect to the ribose of cytidine and uridine. The AMBER99 force field overestimates the population of syn conformations of the base orientation and of C2'-endo sugar puckering of the pyrimidines, while the AMBER99chi force field's predictions are more consistent with NMR results. Moreover, the AMBER99 force field prefers high anti conformations with glycosidic dihedral angles around 310 degrees for the base orientation of purines. The AMBER99chi force field prefers anti conformations around 185 degrees , which is more consistent with the quantum mechanical calculations and known 3D structures of folded ribonucleic acids (RNAs). Evidently, the AMBER99chi force field predicts the structural characteristics of ribonucleosides better than the AMBER99 force field and should improve structural and thermodynamic predictions of RNA structures.

FOIA Home

Science.gov Websites

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Setting Priorities in the Age of Austerity: British, French, and German Experiences

DTIC Science & Technology

2013-01-01

the cuts had not gone far enough, but that the scale of the necessary reductions made it impossible to get away with simply trimming the existing...2020, House of Commons Library, Standard Note 06396, July 26, 2012, pp. 27–28. 9 scale . For example, the 2008 “Future Land Operational Concept...paper called for maintaining broad capabilities: Land forces will need to project suitably configured, scaled and trained forces at appropriate

Propagation of Visible and Infrared Radiation in Fog, Rain, and Snow

DTIC Science & Technology

1982-07-01

Force Base Washington, D.C. 20332 Project manager Smoke/Obscurants 3 Aberden Proving Ground , MD 21005 ATTN: DRCPM-SMK Air Force GL 1 Hanscom AFB...Research Laboratory Technical Reports Boulder, CO 80303 ATTN: Library, R-51 Director U.S. Army Materiel Systems Analysis Agency Aberdeen Proving Ground ...DRSMI-RRO 1 DRSMI-RHC 1 Commander 1 U.S. Army Electronic Proving Grounds Fort Huachuca, AZ 85613 ATTN: STEEP-MT-ST Director 1 U.S. Army Ballistic

An open-access CMIP5 pattern library for temperature and precipitation: Description and methodology

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lynch, Cary D.; Hartin, Corinne A.; Bond-Lamberty, Benjamin

Pattern scaling is used to efficiently emulate general circulation models and explore uncertainty in climate projections under multiple forcing scenarios. Pattern scaling methods assume that local climate changes scale with a global mean temperature increase, allowing for spatial patterns to be generated for multiple models for any future emission scenario. For uncertainty quantification and probabilistic statistical analysis, a library of patterns with descriptive statistics for each file would be beneficial, but such a library does not presently exist. Of the possible techniques used to generate patterns, the two most prominent are the delta and least squared regression methods. We exploremore » the differences and statistical significance between patterns generated by each method and assess performance of the generated patterns across methods and scenarios. Differences in patterns across seasons between methods and epochs were largest in high latitudes (60-90°N/S). Bias and mean errors between modeled and pattern predicted output from the linear regression method were smaller than patterns generated by the delta method. Across scenarios, differences in the linear regression method patterns were more statistically significant, especially at high latitudes. We found that pattern generation methodologies were able to approximate the forced signal of change to within ≤ 0.5°C, but choice of pattern generation methodology for pattern scaling purposes should be informed by user goals and criteria. As a result, this paper describes our library of least squared regression patterns from all CMIP5 models for temperature and precipitation on an annual and sub-annual basis, along with the code used to generate these patterns.« less

An open-access CMIP5 pattern library for temperature and precipitation: Description and methodology

DOE PAGES

Lynch, Cary D.; Hartin, Corinne A.; Bond-Lamberty, Benjamin; ...

2017-05-15

Pattern scaling is used to efficiently emulate general circulation models and explore uncertainty in climate projections under multiple forcing scenarios. Pattern scaling methods assume that local climate changes scale with a global mean temperature increase, allowing for spatial patterns to be generated for multiple models for any future emission scenario. For uncertainty quantification and probabilistic statistical analysis, a library of patterns with descriptive statistics for each file would be beneficial, but such a library does not presently exist. Of the possible techniques used to generate patterns, the two most prominent are the delta and least squared regression methods. We exploremore » the differences and statistical significance between patterns generated by each method and assess performance of the generated patterns across methods and scenarios. Differences in patterns across seasons between methods and epochs were largest in high latitudes (60-90°N/S). Bias and mean errors between modeled and pattern predicted output from the linear regression method were smaller than patterns generated by the delta method. Across scenarios, differences in the linear regression method patterns were more statistically significant, especially at high latitudes. We found that pattern generation methodologies were able to approximate the forced signal of change to within ≤ 0.5°C, but choice of pattern generation methodology for pattern scaling purposes should be informed by user goals and criteria. As a result, this paper describes our library of least squared regression patterns from all CMIP5 models for temperature and precipitation on an annual and sub-annual basis, along with the code used to generate these patterns.« less

Validating empirical force fields for molecular-level simulation of cellulose dissolution

USDA-ARS?s Scientific Manuscript database

The calculations presented here, which include dynamics simulations using analytical force fields and first principles studies, indicate that the COMPASS force field is preferred over the Dreiding and Universal force fields for studying dissolution of large cellulose structures. The validity of thes...

Hierarchical atom type definitions and extensible all-atom force fields.

PubMed

Jin, Zhao; Yang, Chunwei; Cao, Fenglei; Li, Feng; Jing, Zhifeng; Chen, Long; Shen, Zhe; Xin, Liang; Tong, Sijia; Sun, Huai

2016-03-15

The extensibility of force field is a key to solve the missing parameter problem commonly found in force field applications. The extensibility of conventional force fields is traditionally managed in the parameterization procedure, which becomes impractical as the coverage of the force field increases above a threshold. A hierarchical atom-type definition (HAD) scheme is proposed to make extensible atom type definitions, which ensures that the force field developed based on the definitions are extensible. To demonstrate how HAD works and to prepare a foundation for future developments, two general force fields based on AMBER and DFF functional forms are parameterized for common organic molecules. The force field parameters are derived from the same set of quantum mechanical data and experimental liquid data using an automated parameterization tool, and validated by calculating molecular and liquid properties. The hydration free energies are calculated successfully by introducing a polarization scaling factor to the dispersion term between the solvent and solute molecules. © 2015 Wiley Periodicals, Inc. © 2015 Wiley Periodicals, Inc.

Realizing what's essential: a case study on integrating electronic journal management into a print-centric technical services department.

PubMed

Dollar, Daniel M; Gallagher, John; Glover, Janis; Marone, Regina Kenny; Crooker, Cynthia

2007-04-01

To support migration from print to electronic resources, the Cushing/Whitney Medical Library at Yale University reorganized its Technical Services Department to focus on managing electronic resources. The library hired consultants to help plan the changes and to present recommendations for integrating electronic resource management into every position. The library task force decided to focus initial efforts on the periodical collection. To free staff time to devote to electronic journals, most of the print subscriptions were switched to online only and new workflows were developed for e-journals. Staff learned new responsibilities such as activating e-journals, maintaining accurate holdings information in the online public access catalog and e-journals database ("electronic shelf reading"), updating the link resolver knowledgebase, and troubleshooting. All of the serials team members now spend significant amounts of time managing e-journals. The serials staff now spends its time managing the materials most important to the library's clientele (e-journals and databases). The team's proactive approach to maintenance work and rapid response to reported problems should improve patrons' experiences using e-journals. The library is taking advantage of new technologies such as an electronic resource management system, and library workflows and procedures will continue to evolve as technology changes.

Realizing what's essential: a case study on integrating electronic journal management into a print-centric technicalservices department

PubMed Central

Dollar, Daniel M.; Gallagher, John; Glover, Janis; Marone, Regina Kenny; Crooker, Cynthia

2007-01-01

Objective: To support migration from print to electronic resources, the Cushing/Whitney Medical Library at Yale University reorganized its Technical Services Department to focus on managing electronic resources. Methods: The library hired consultants to help plan the changes and to present recommendations for integrating electronic resource management into every position. The library task force decided to focus initial efforts on the periodical collection. To free staff time to devote to electronic journals, most of the print subscriptions were switched to online only and new workflows were developed for e-journals. Results: Staff learned new responsibilities such as activating e-journals, maintaining accurate holdings information in the online public access catalog and e-journals database (“electronic shelf reading”), updating the link resolver knowledgebase, and troubleshooting. All of the serials team members now spend significant amounts of time managing e-journals. Conclusions: The serials staff now spends its time managing the materials most important to the library's clientele (e-journals and databases). The team's proactive approach to maintenance work and rapid response to reported problems should improve patrons' experiences using e-journals. The library is taking advantage of new technologies such as an electronic resource management system, and library workflows and procedures will continue to evolve as technology changes. PMID:17443247

A force field for dynamic Cu-BTC metal-organic framework.

PubMed

Zhao, Lei; Yang, Qingyuan; Ma, Qintian; Zhong, Chongli; Mi, Jianguo; Liu, Dahuan

2011-02-01

A new force field that can describe the flexibility of Cu-BTC metal-organic framework (MOF) was developed in this work. Part of the parameters were obtained using density functional theory calculations, and the others were taken from other force fields. The new force field could reproduce well the experimental crystal structure, negative thermal expansion, vibrational properties as well as adsorption behavior in Cu-BTC. In addition, the bulk modulus of Cu-BTC was predicted using the new force field. We believe the new force field is useful in understanding the structure-property relationships for MOFs, and the approach can be extended to other MOFs.

Fixed-Charge Atomistic Force Fields for Molecular Dynamics Simulations in the Condensed Phase: An Overview.

PubMed

Riniker, Sereina

2018-03-26

In molecular dynamics or Monte Carlo simulations, the interactions between the particles (atoms) in the system are described by a so-called force field. The empirical functional form of classical fixed-charge force fields dates back to 1969 and remains essentially unchanged. In a fixed-charge force field, the polarization is not modeled explicitly, i.e. the effective partial charges do not change depending on conformation and environment. This simplification allows, however, a dramatic reduction in computational cost compared to polarizable force fields and in particular quantum-chemical modeling. The past decades have shown that simulations employing carefully parametrized fixed-charge force fields can provide useful insights into biological and chemical questions. This overview focuses on the four major force-field families, i.e. AMBER, CHARMM, GROMOS, and OPLS, which are based on the same classical functional form and are continuously improved to the present day. The overview is aimed at readers entering the field of (bio)molecular simulations. More experienced users may find the comparison and historical development of the force-field families interesting.

Rx for Library Management.

ERIC Educational Resources Information Center

Cage, Alvin C.

1986-01-01

Examines recent developments in field of systems theory that can improve library management practices by broadening perspective in which these problems may be approached. The concept of organizational life cycles is discussed and a paradigm for application of its principles is developed. An Rx decision chart is appended. (9 references) (EJS)

Next-generation sequencing library construction on a surface.

PubMed

Feng, Kuan; Costa, Justin; Edwards, Jeremy S

2018-05-30

Next-generation sequencing (NGS) has revolutionized almost all fields of biology, agriculture and medicine, and is widely utilized to analyse genetic variation. Over the past decade, the NGS pipeline has been steadily improved, and the entire process is currently relatively straightforward. However, NGS instrumentation still requires upfront library preparation, which can be a laborious process, requiring significant hands-on time. Herein, we present a simple but robust approach to streamline library preparation by utilizing surface bound transposases to construct DNA libraries directly on a flowcell surface. The surface bound transposases directly fragment genomic DNA while simultaneously attaching the library molecules to the flowcell. We sequenced and analysed a Drosophila genome library generated by this surface tagmentation approach, and we showed that our surface bound library quality was comparable to the quality of the library from a commercial kit. In addition to the time and cost savings, our approach does not require PCR amplification of the library, which eliminates potential problems associated with PCR duplicates. We described the first study to construct libraries directly on a flowcell. We believe our technique could be incorporated into the existing Illumina sequencing pipeline to simplify the workflow, reduce costs, and improve data quality.

Scrutinizing Molecular Mechanics Force Fields on the Submicrosecond Timescale with NMR Data

PubMed Central

Lange, Oliver F.; van der Spoel, David; de Groot, Bert L.

2010-01-01

Abstract Protein dynamics on the atomic level and on the microsecond timescale has recently become accessible from both computation and experiment. To validate molecular dynamics (MD) at the submicrosecond timescale against experiment we present microsecond MD simulations in 10 different force-field configurations for two globular proteins, ubiquitin and the gb3 domain of protein G, for which extensive NMR data is available. We find that the reproduction of the measured NMR data strongly depends on the chosen force field and electrostatics treatment. Generally, particle-mesh Ewald outperforms cut-off and reaction-field approaches. A comparison to measured J-couplings across hydrogen bonds suggests that there is room for improvement in the force-field description of hydrogen bonds in most modern force fields. Our results show that with current force fields, simulations beyond hundreds of nanoseconds run an increased risk of undergoing transitions to nonnative conformational states or will persist within states of high free energy for too long, thus skewing the obtained population frequencies. Only for the AMBER99sb force field have such transitions not been observed. Thus, our results have significance for the interpretation of data obtained with long MD simulations, for the selection of force fields for MD studies and for force-field development. We hope that this comprehensive benchmark based on NMR data applied to many popular MD force fields will serve as a useful resource to the MD community. Finally, we find that for gb3, the force-field AMBER99sb reaches comparable accuracy in back-calculated residual dipolar couplings and J-couplings across hydrogen bonds to ensembles obtained by refinement against NMR data. PMID:20643085

Quality evaluation of tandem mass spectral libraries.

PubMed

Oberacher, Herbert; Weinmann, Wolfgang; Dresen, Sebastian

2011-06-01

Tandem mass spectral libraries are gaining more and more importance for the identification of unknowns in different fields of research, including metabolomics, forensics, toxicology, and environmental analysis. Particularly, the recent invention of reliable, robust, and transferable libraries has increased the general acceptance of these tools. Herein, we report on results obtained from thorough evaluation of the match reliabilities of two tandem mass spectral libraries: the MSforID library established by the Oberacher group in Innsbruck and the Weinmann library established by the Weinmann group in Freiburg. Three different experiments were performed: (1) Spectra of the libraries were searched against their corresponding library after excluding either this single compound-specific spectrum or all compound-specific spectra prior to searching; (2) the libraries were searched against each other using either library as reference set or sample set; (3) spectra acquired on different mass spectrometric instruments were matched to both libraries. Almost 13,000 tandem mass spectra were included in this study. The MSforID search algorithm was used for spectral matching. Statistical evaluation of the library search results revealed that principally both libraries enable the sensitive and specific identification of compounds. Due to higher mass accuracy of the QqTOF compared with the QTrap instrument, matches to the MSforID library were more reliable when comparing spectra with both libraries. Furthermore, only the MSforID library was shown to be efficiently transferable to different kinds of tandem mass spectrometers, including "tandem-in-time" instruments; this is due to the coverage of a large range of different collision energy settings-including the very low range-which is an outstanding characteristics of the MSforID library.

Trends in Library and Information Science: 1989. ERIC Digest.

ERIC Educational Resources Information Center

Eisenberg, Michael B.

Based on a content analysis of professional journals, conference proceedings, ERIC documents, annuals, and dissertations in library and information science, the following current trends in the field are discussed: (1) there are important emerging roles and responsibilities for information professionals; (2) the status and image of librarians…

Addressing Psychosocial Factors with Library Mentoring

ERIC Educational Resources Information Center

Farrell, Bridget; Alabi, Jaena; Whaley, Pambanisha; Jenda, Claudine

2017-01-01

The majority of articles on mentoring in the library and information science field address career development by emphasizing the orientation process for new librarians and building the requisite skills for a specific job. Few articles deal with the psychological and social challenges that many early-career and minority librarians face, which can…

Open Access Research via Collaborative Educational Blogging: A Case Study from Library & Information Science

ERIC Educational Resources Information Center

Rebmann, Kristen Radsliff; Clark, Camden Bernard

2017-01-01

This article charts the development of activities for online graduate students in library and information science. Project goals include helping students develop competencies in understanding open access publishing, synthesizing research in the field, and engaging in scholarly communication via collaborative educational blogging. Using a design…

Library Resources in Special Areas of Music: Film Music.

ERIC Educational Resources Information Center

Wright, H. Stephen

Intended as an orientation for music librarians unfamiliar with the film music field, this presentation addresses the most common film music questions received from library patrons, including queries about composers, soundtrack albums, the subject of the music, and scores, and describes the basic film music reference sources to consult for…

MARC: Mrs. Avram's Remarkable Contribution.

ERIC Educational Resources Information Center

Rather, Lucia J.; Wiggins, Beacher

1989-01-01

This discussion of the contributions of Henriette D. Avram to the field of librarianship covers her role in establishing MARC formats as the international standard for library automation and her work in the retrospective conversion of catalogs, establishment of library standards, and creation of information networks. An interview with Dr. Avram is…

42 CFR 64.1 - Programs to which these regulations apply.

Code of Federal Regulations, 2013 CFR

2013-10-01

..., INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.1 Programs to which these regulations...) in library science and the field of communications of information pertaining to sciences relating to... apply to research training support under the National Research Service Awards Program (see part 66 of...

42 CFR 64.1 - Programs to which these regulations apply.

Code of Federal Regulations, 2014 CFR

2014-10-01

..., INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.1 Programs to which these regulations...) in library science and the field of communications of information pertaining to sciences relating to... apply to research training support under the National Research Service Awards Program (see part 66 of...

42 CFR 64.1 - Programs to which these regulations apply.

Code of Federal Regulations, 2011 CFR

2011-10-01

..., INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.1 Programs to which these regulations...) in library science and the field of communications of information pertaining to sciences relating to... apply to research training support under the National Research Service Awards Program (see part 66 of...

42 CFR 64.1 - Programs to which these regulations apply.

Code of Federal Regulations, 2012 CFR

2012-10-01

..., INTERNSHIPS, TRAINING NATIONAL LIBRARY OF MEDICINE TRAINING GRANTS § 64.1 Programs to which these regulations...) in library science and the field of communications of information pertaining to sciences relating to... apply to research training support under the National Research Service Awards Program (see part 66 of...

Does Every Research Library Need a Digital Humanities Center?

ERIC Educational Resources Information Center

Schaffner, Jennifer; Erway, Ricky

2014-01-01

The digital humanities (DH) are attracting considerable attention and funding at the same time that this nascent field is striving for an identity. Some research libraries are making significant investments by creating digital humanities centers. However, questions about whether such investments are warranted persist across the cultural heritage…

Trends & Issues in Library & Information Science 1990.

ERIC Educational Resources Information Center

Eisenberg, Michael B.; And Others

This synthesis paper provides a state-of-the-art analysis of the field of library and information science based on the results of a content analysis of its literature, including selected journals, conference proceedings, dissertations, and ERIC input. The 14 trends and issues identified by the analysis include developments in technology,…

Prediction of Mechanical Properties of Polymers With Various Force Fields

NASA Technical Reports Server (NTRS)

Odegard, Gregory M.; Clancy, Thomas C.; Gates, Thomas S.

2005-01-01

The effect of force field type on the predicted elastic properties of a polyimide is examined using a multiscale modeling technique. Molecular Dynamics simulations are used to predict the atomic structure and elastic properties of the polymer by subjecting a representative volume element of the material to bulk and shear finite deformations. The elastic properties of the polyimide are determined using three force fields: AMBER, OPLS-AA, and MM3. The predicted values of Young s modulus and shear modulus of the polyimide are compared with experimental values. The results indicate that the mechanical properties of the polyimide predicted with the OPLS-AA force field most closely matched those from experiment. The results also indicate that while the complexity of the force field does not have a significant effect on the accuracy of predicted properties, small differences in the force constants and the functional form of individual terms in the force fields determine the accuracy of the force field in predicting the elastic properties of the polyimide.

AGAMA: Action-based galaxy modeling framework

NASA Astrophysics Data System (ADS)

Vasiliev, Eugene

2018-05-01

The AGAMA library models galaxies. It computes gravitational potential and forces, performs orbit integration and analysis, and can convert between position/velocity and action/angle coordinates. It offers a framework for finding best-fit parameters of a model from data and self-consistent multi-component galaxy models, and contains useful auxiliary utilities such as various mathematical routines. The core of the library is written in C++, and there are Python and Fortran interfaces. AGAMA may be used as a plugin for the stellar-dynamical software packages galpy (ascl:1411.008), AMUSE (ascl:1107.007), and NEMO (ascl:1010.051).

Government Information Locator Service (GILS). Draft report to the Information Infrastructure Task Force

NASA Technical Reports Server (NTRS)

1994-01-01

This is a draft report on the Government Information Locator Service (GILS) to the National Information Infrastructure (NII) task force. GILS is designed to take advantage of internetworking technology known as client-server architecture which allows information to be distributed among multiple independent information servers. Two appendices are provided -- (1) A glossary of related terminology and (2) extracts from a draft GILS profile for the use of the American National Standard Information Retrieval Application Service Definition and Protocol Specification for Library Applications.

Force Field for Water Based on Neural Network.

PubMed

Wang, Hao; Yang, Weitao

2018-05-18

We developed a novel neural network based force field for water based on training with high level ab initio theory. The force field was built based on electrostatically embedded many-body expansion method truncated at binary interactions. Many-body expansion method is a common strategy to partition the total Hamiltonian of large systems into a hierarchy of few-body terms. Neural networks were trained to represent electrostatically embedded one-body and two-body interactions, which require as input only one and two water molecule calculations at the level of ab initio electronic structure method CCSD/aug-cc-pVDZ embedded in the molecular mechanics water environment, making it efficient as a general force field construction approach. Structural and dynamic properties of liquid water calculated with our force field show good agreement with experimental results. We constructed two sets of neural network based force fields: non-polarizable and polarizable force fields. Simulation results show that the non-polarizable force field using fixed TIP3P charges has already behaved well, since polarization effects and many-body effects are implicitly included due to the electrostatic embedding scheme. Our results demonstrate that the electrostatically embedded many-body expansion combined with neural network provides a promising and systematic way to build the next generation force fields at high accuracy and low computational costs, especially for large systems.

PubMed enhancements: fulfilling the promise of a great product.

PubMed

Schott, Michael J

2004-01-01

There have been many recent changes to PubMed to enhance its usefulness. Those changes include: LinkOut Libraries (local holding field), PubMed Central (full-text articles archived by the National Library of Medicine), and LinkOut (access to full-text articles right from the PubMed citation). Medical librarians should be aware of how these features work to best assist their clients. These new features offer the possibility of true desktop access for library patrons. Not only will patrons appreciate these new features, but their use in libraries will literally change what we do, who does it, and how it is done.

Different elution modes and field programming in gravitational field-flow fractionation. III. Field programming by flow-rate gradient generated by a programmable pump.

PubMed

Plocková, J; Chmelík, J

2001-05-25

Gravitational field-flow fractionation (GFFF) utilizes the Earth's gravitational field as an external force that causes the settlement of particles towards the channel accumulation wall. Hydrodynamic lift forces oppose this action by elevating particles away from the channel accumulation wall. These two counteracting forces enable modulation of the resulting force field acting on particles in GFFF. In this work, force-field programming based on modulating the magnitude of hydrodynamic lift forces was implemented via changes of flow-rate, which was accomplished by a programmable pump. Several flow-rate gradients (step gradients, linear gradients, parabolic, and combined gradients) were tested and evaluated as tools for optimization of the separation of a silica gel particle mixture. The influence of increasing amount of sample injected on the peak resolution under flow-rate gradient conditions was also investigated. This is the first time that flow-rate gradients have been implemented for programming of the resulting force field acting on particles in GFFF.

A Research Agenda for Scientific and Technical Information Held in Lisbon, Portugal on 7-9 April 1992 (Un Programme de Recherche pour l’Information Scientifique et Technique).

DTIC Science & Technology

1992-11-01

field of inquiry. Good solid research advances fault library science and information science for not ask- the state of the art by contributing to the...further research and application. Ennis (1967) problems faced each day by practitioners. Robert Smith commented that library science research is...under ogy, and technical communications. Library science the title "On Information Science." Keren raises interest- and information science have been

Application on Internet of Things Technology Using in Library Management

NASA Astrophysics Data System (ADS)

Liu, Xueqing; Sheng, Wenwen

Following the computer, Internet and mobile communication network, the Internet of Things (IOT) will bring a new development of information industry, and moreover is a global technology revolution that is bound to have a profound impact on the economic development and social life. This paper analyzes the key technology and working principle of IOT, its development at home and abroad, its application in the library management, and proposes its development direction in the field of library management and promotion programs.

Catalog of Space Shuttle Earth Observations Handheld Photography. Space Transportation System 39 (STS-39) Mission Dates: April 28 Through May 6, 1991

DTIC Science & Technology

1991-10-01

Albuquerque, NM 87131 Telephone: (505) 277-3622 Media Services Branch Still Photography Library NASA Lyndon B. Johnson Space Center P.O. Box 58425...organizations similarly equipped are the NASA Ames Research Center, California; the Library of Congress; the University of California at Santa Barbara; the Lunar...219 (M.S. 240-6) NASA Ames Research Center Moffett Field, CA 94305 (415) 604-6252 U.S. GOVERNMENT - LIBRARY OF CONGRESS Geography & Map Division Rm. B

A pathway for hospital librarians: why is it vital?

PubMed Central

Tooey, Mary Joan (M.J.)

2009-01-01

Objectives: By the mid 2000s, reports of hospital librarians losing jobs and hospital libraries closing were rife. In 2005, Vital Pathways: The Hospital Libraries Project was established by 2005/06 MLA President M.J. Tooey, AHIP, FMLA, to assess the truth of these reports and to study and develop strategies to support hospital librarians. Throughout this long-term project, opportunities were sought to understand the issues more clearly. Methods: A steering committee, along with three task forces, was established to carry out the work of the project. The steering committee provided oversight and had responsibility for promoting and marketing the project. The three task forces were responsible for conducting a survey on the status of hospital librarians, determining the involvement of librarians in medical education and accreditation, and researching and writing a document reviewing current and future roles for hospital librarians. Along the way, these responsibilities grew and evolved. Results: After a little more than three years, the Task Force on Vital Pathways for Hospital Librarians Steering Committee presented a final report regarding its accomplishments to the MLA Board of Directors. A sampling of these accomplishments includes the status of hospital librarians survey, a website, a position document with an accompanying executive summary, a short promotional brochure, and a final culminating activity, this symposium. Conclusions: Although these are difficult times for all libraries, hospital librarians and libraries seem particularly affected. In a competitive health care environment that is driven by the bottom line, influenced by real estate hunger, and affected by the belief of hospital administrators that access to health information comes from the Internet and is free, the hospital librarian seems doomed. However, even in these difficult times, there are hospital librarians who are not only surviving, but thriving. Is it because they are entrepreneurial? Opportunistic? Innovative? Flexible? All of the above? None of the above? There are no clear predictors of success or of failure. However, the Vital Pathways Project has shed light on some of the issues and identified opportunities and strategies for the future. PMID:19851490

A pathway for hospital librarians: why is it vital?

PubMed

Tooey, Mary Joan M J

2009-10-01

By the mid 2000s, reports of hospital librarians losing jobs and hospital libraries closing were rife. In 2005, Vital Pathways: The Hospital Libraries Project was established by 2005/06 MLA President M.J. Tooey, AHIP, FMLA, to assess the truth of these reports and to study and develop strategies to support hospital librarians. Throughout this long-term project, opportunities were sought to understand the issues more clearly. A steering committee, along with three task forces, was established to carry out the work of the project. The steering committee provided oversight and had responsibility for promoting and marketing the project. The three task forces were responsible for conducting a survey on the status of hospital librarians, determining the involvement of librarians in medical education and accreditation, and researching and writing a document reviewing current and future roles for hospital librarians. Along the way, these responsibilities grew and evolved. After a little more than three years, the Task Force on Vital Pathways for Hospital Librarians Steering Committee presented a final report regarding its accomplishments to the MLA Board of Directors. A sampling of these accomplishments includes the status of hospital librarians survey, a website, a position document with an accompanying executive summary, a short promotional brochure, and a final culminating activity, this symposium. Although these are difficult times for all libraries, hospital librarians and libraries seem particularly affected. In a competitive health care environment that is driven by the bottom line, influenced by real estate hunger, and affected by the belief of hospital administrators that access to health information comes from the Internet and is free, the hospital librarian seems doomed. However, even in these difficult times, there are hospital librarians who are not only surviving, but thriving. Is it because they are entrepreneurial? Opportunistic? Innovative? Flexible? All of the above? None of the above? There are no clear predictors of success or of failure. However, the Vital Pathways Project has shed light on some of the issues and identified opportunities and strategies for the future.

Communications for unattended sensor networks

NASA Astrophysics Data System (ADS)

Nemeroff, Jay L.; Angelini, Paul; Orpilla, Mont; Garcia, Luis; DiPierro, Stefano

2004-07-01

The future model of the US Army's Future Combat Systems (FCS) and the Future Force reflects a combat force that utilizes lighter armor protection than the current standard. Survival on the future battlefield will be increased by the use of advanced situational awareness provided by unattended tactical and urban sensors that detect, identify, and track enemy targets and threats. Successful implementation of these critical sensor fields requires the development of advanced sensors, sensor and data-fusion processors, and a specialized communications network. To ensure warfighter and asset survivability, the communications must be capable of near real-time dissemination of the sensor data using robust, secure, stealthy, and jam resistant links so that the proper and decisive action can be taken. Communications will be provided to a wide-array of mission-specific sensors that are capable of processing data from acoustic, magnetic, seismic, and/or Chemical, Biological, Radiological, and Nuclear (CBRN) sensors. Other, more powerful, sensor node configurations will be capable of fusing sensor data and intelligently collect and process data images from infrared or visual imaging cameras. The radio waveform and networking protocols being developed under the Soldier Level Integrated Communications Environment (SLICE) Soldier Radio Waveform (SRW) and the Networked Sensors for the Future Force Advanced Technology Demonstration are part of an effort to develop a common waveform family which will operate across multiple tactical domains including dismounted soldiers, ground sensor, munitions, missiles and robotics. These waveform technologies will ultimately be transitioned to the JTRS library, specifically the Cluster 5 requirement.

Research on natural lighting in reading spaces of university libraries in Jinan under the perspective of energy-efficiency

NASA Astrophysics Data System (ADS)

Yang, Zengzhang

2017-11-01

The natural lighting design in the reading spaces of university libraries not only influences physical and mental health of readers but also concerns the energy consumption of the libraries. The scientific and rational design of natural lighting is the key to the design of energy saving for physical environment of the reading space. The paper elaborates the present situation and existed problems of natural lighting in reading spaces of university libraries across Jinan region based on characteristics of light climate of Jinan region and concrete utilization of reading spaces in university libraries, and combining field measurement, survey, research and data analysis of reading spaces in Shandong Women’s University’s library. The paper, under the perspective of energy-efficiency, puts forward proposals to improve natural lighting in the reading spaces of university libraries from five aspects, such as adjustment of interior layout, optimization of outer windows design, employment of the reflector panel, design lighting windows on inner walls and utilization of adjustable sun shading facilities.

Mathematical and Statistical Software Index. Final Report.

ERIC Educational Resources Information Center

Black, Doris E., Comp.

Brief descriptions are provided of general-purpose mathematical and statistical software, including 27 "stand-alone" programs, three subroutine systems, and two nationally recognized statistical packages, which are available in the Air Force Human Resources Laboratory (AFHRL) software library. This index was created to enable researchers…

Force field development with GOMC, a fast new Monte Carlo molecular simulation code

NASA Astrophysics Data System (ADS)

Mick, Jason Richard

In this work GOMC (GPU Optimized Monte Carlo) a new fast, flexible, and free molecular Monte Carlo code for the simulation atomistic chemical systems is presented. The results of a large Lennard-Jonesium simulation in the Gibbs ensemble is presented. Force fields developed using the code are also presented. To fit the models a quantitative fitting process is outlined using a scoring function and heat maps. The presented n-6 force fields include force fields for noble gases and branched alkanes. These force fields are shown to be the most accurate LJ or n-6 force fields to date for these compounds, capable of reproducing pure fluid behavior and binary mixture behavior to a high degree of accuracy.

Outreach to Scientists and Engineers at the Hanford Technical Library

DOE Office of Scientific and Technical Information (OSTI.GOV)

Buxton, Karen A.

Staff at the Hanford Technical Library has developed a suite of programs designed to help busy researchers at the Pacific Northwest National Laboratory (PNNL) make better use of library products and services. Programs include formal training classes, one-on-one consultations, and targeted email messages announcing new materials to researchers in specific fields. A staple of outreach has been to teach classes to library clients covering research tools in their fields. These classes started out in the library classroom and then expanded to other venues around PNNL. Class surveys indicated that many researchers desired a practical approach to learning rather than themore » traditional lecture format. The library instituted “Library Learning Day” and hosted classes in the PNNL computer training room to provide lab employees with a hands-on learning experience. Classes are generally offered at noon and lab staff attends classes on their lunch hour. Many just do not have time to spend a full hour in training. Library staff added some experimental half-hour mini classes in campus buildings geared to the projects and interests of researchers there to see if this format was more appealing. As other programs have developed librarians are teaching fewer classes but average attendance figures has remained fairly stable from 2005-2007. In summer of 2004 the library began the Traveling Librarian program. Librarians call-on groups and individuals in 24 buildings on the Richland Washington campus. Five full-time and two part-time librarians are involved in the program. Librarians usually send out email announcements prior to visits and encourage scientists and engineers to make appointments for a brief 15 minute consultation in the researcher’s own office. During the meeting lab staff learn about products or product features that can help them work more productively. Librarians also make cold calls to staff that do not request a consultation and may not be making full use of the library. Scientists and engineers who require longer sessions can arrange half-hour training appointments in the researcher’s own office or at the library. Since the program was implemented staff made 165 visits to 1249 laboratory staff including some repeat consultation requests. New acquisitions lists are sent to individuals and groups that would be interested in recent journal, database, and books purchases. These lists are topic specific and targeted to groups and individuals with an interest in the field. For example newly acquired engineering resources are targeted at engineering groups. The new acquisitions list for engineering began mid year in 2005. An analysis of circulation statistics for engineering books in fiscal year 2005, 2006, and 2007 show that circulation increased each year with 2007 circulation nearly double that of 2005. This took place when overall circulation rose in FY06 but fell slightly in FY07. Outreach strategies tailored and individualized can be effective. Offering multiple outreach options offers researchers different ways to interact with library staff and services.« less

Development of Methodologic Tools for Planning and Managing Library Services: II. Measuring a Library's Capability for Providing Documents *

PubMed Central

Orr, Richard H.; Pings, Vern M.; Pizer, Irwin H.; Olson, Edwin E.; Spencer, Carol C.

1968-01-01

A method of measuring a library's capability for providing the documents its users need has been developed. The library is tested with a representative sample of such documents to determine how long would be required for users to obtain these documents. Test results are expressed in terms of a Capability Index, which has a maximal value of 100 only if all the sample documents are found “on shelf.” Specific tests employing samples of 300 documents have been developed that are appropriate for academic and for “reservoir” biomedical libraries. Realistic field trials have demonstrated that these two tests are practical to administer and that test results are adequately reproducible. When strict comparability is not important, a library can test itself. In assessing a reservoir library, test results are supplemented by data on its typical processing time for interlibrary loan requests. Currently these tests are being used in a national survey. The general method is applicable to other types of libraries, provided appropriate test samples are established. If their limitations are clearly understood, these “Document Delivery Tests” can be valuable tools for planning and managing library services. PMID:5665969

A protein-dependent side-chain rotamer library.

PubMed

Bhuyan, Md Shariful Islam; Gao, Xin

2011-12-14

Protein side-chain packing problem has remained one of the key open problems in bioinformatics. The three main components of protein side-chain prediction methods are a rotamer library, an energy function and a search algorithm. Rotamer libraries summarize the existing knowledge of the experimentally determined structures quantitatively. Depending on how much contextual information is encoded, there are backbone-independent rotamer libraries and backbone-dependent rotamer libraries. Backbone-independent libraries only encode sequential information, whereas backbone-dependent libraries encode both sequential and locally structural information. However, side-chain conformations are determined by spatially local information, rather than sequentially local information. Since in the side-chain prediction problem, the backbone structure is given, spatially local information should ideally be encoded into the rotamer libraries. In this paper, we propose a new type of backbone-dependent rotamer library, which encodes structural information of all the spatially neighboring residues. We call it protein-dependent rotamer libraries. Given any rotamer library and a protein backbone structure, we first model the protein structure as a Markov random field. Then the marginal distributions are estimated by the inference algorithms, without doing global optimization or search. The rotamers from the given library are then re-ranked and associated with the updated probabilities. Experimental results demonstrate that the proposed protein-dependent libraries significantly outperform the widely used backbone-dependent libraries in terms of the side-chain prediction accuracy and the rotamer ranking ability. Furthermore, without global optimization/search, the side-chain prediction power of the protein-dependent library is still comparable to the global-search-based side-chain prediction methods.

Field Guides in Academe: A Citation Study

ERIC Educational Resources Information Center

Schmidt, Dianne

2006-01-01

Field guides are common in libraries but are generally not considered scholarly. This study examines citations to fifty field guides to determine how they were used in scholarly publications, finding that field guides are frequently cited as a source of data on the ranges, habits, and descriptions of plants and animals.

Anatomy of Advocacy: A Case Study of the White House Petition

ERIC Educational Resources Information Center

Burns, Elizabeth; Kimmel, Sue; Dickinson, Gail

2016-01-01

Little research has been conducted examining advocacy efforts in the school library field despite the fact that program advocate is a prominent role for school librarians. One element of advocacy is the engagement in political initiatives that may affect school library programs. This case study investigates the effectiveness of one advocacy effort…

Investing Wisely: Citation Rankings as a Measure of Quality in Library and Information Science Journals

ERIC Educational Resources Information Center

Via, Barbara J.; Schmidle, Deborah J.

2007-01-01

The library and information science field is currently confronted with difficult decisions about how best to allocate acquisition expenditures among increasingly expensive journals. This article measures the return-on-investment of serial expenditures through the use of citation analysis, which is a widely used approach to ascertaining journal…

Public Libraries in an Age of Financial Complexity: Toward Enhancing Community Financial Literacy

ERIC Educational Resources Information Center

Smith, Catherine Arnott; Eschenfelder, Kristin

2013-01-01

This report describes several linked empirical studies that examine the activities of public libraries in increasing the financial literacy of their service population. A qualitative field study examines librarians' perceptions of the challenges in offering information and services in this domain; a second set of interviews centers on the…

Salary Negotiation Patterns between Women and Men in Academic Libraries

ERIC Educational Resources Information Center

Silva, Elise; Galbraith, Quinn

2018-01-01

Due to persistent wage gaps between men and women nationally, and in the field of academic librarianship, researchers wished to study possible issues that contribute to the phenomenon. This study examines the tendency for men and women to negotiate salaries in academic libraries upon hire. Researchers surveyed professional librarians employed in…

Making It Fit: Reshaping Library Services and Spaces for Today's Students

ERIC Educational Resources Information Center

Mosley, Paul; Alderman, Jim; Carmichael, Lisandra R.

2015-01-01

University course assignments increasingly focus on group work and group projects to help students collaboratively discover more about their fields of study. The Thomas G. Carpenter Library realized the need to investigate means for reimagining itself to better accommodate today's researchers. The complex process of planning for the redesign of…

Incorporating Nonparametric Statistics into Delphi Studies in Library and Information Science

ERIC Educational Resources Information Center

Ju, Boryung; Jin, Tao

2013-01-01

Introduction: The Delphi technique is widely used in library and information science research. However, many researchers in the field fail to employ standard statistical tests when using this technique. This makes the technique vulnerable to criticisms of its reliability and validity. The general goal of this article is to explore how…

Toward Improved Collections in Medical Humanities: Fiction in Academic Health Sciences Libraries

ERIC Educational Resources Information Center

Dali, Keren; Dilevko, Juris

2006-01-01

Although fiction plays a prominent role in the interdisciplinary field of medical humanities (MH), it is physically and intellectually isolated from non-fiction in academic health sciences libraries. Using the Literature, Arts, and Medicine Database (LAMD) as a tool for selection and subject analysis, we suggest a method of integrating fiction…

Investigating the Use of a Digital Library in an Inquiry-Based Undergraduate Geology Course

ERIC Educational Resources Information Center

Apedoe, Xornam S.

2007-01-01

This paper reports the findings of a qualitative research study designed to investigate the opportunities and obstacles presented by a digital library for supporting teaching and learning in an inquiry-based undergraduate geology course. Data for this study included classroom observations and field-notes of classroom practices, questionnaires, and…

Solo Librarians and Intellectual Freedom: Perspectives from the Field

ERIC Educational Resources Information Center

Adams, Helen R.

2011-01-01

As schools across the country face increasing fiscal restraints, school library professional positions are being eliminated at an alarming rate. As a result, many school librarians are becoming the only certified library professional in a district, serving multiple schools and grade levels. Suddenly, each is a solo librarian. As a solo librarian…

Change in the Making: Makerspaces and the Ever-Changing Landscape of Libraries

ERIC Educational Resources Information Center

Moorefield-Lang, Heather

2015-01-01

Makerspaces and accompanying technologies are exciting new services being offered in libraries. However, these come with their own challenges and successes. Training for maker learning locations continues to be difficult to obtain. Inservice librarians rely on peers in the field and online resources for their training. Most preservice librarians…

Comparison of Cellulose Iβ Simulations with Three Carbohydrate Force Fields.

PubMed

Matthews, James F; Beckham, Gregg T; Bergenstråhle-Wohlert, Malin; Brady, John W; Himmel, Michael E; Crowley, Michael F

2012-02-14

Molecular dynamics simulations of cellulose have recently become more prevalent due to increased interest in renewable energy applications, and many atomistic and coarse-grained force fields exist that can be applied to cellulose. However, to date no systematic comparison between carbohydrate force fields has been conducted for this important system. To that end, we present a molecular dynamics simulation study of hydrated, 36-chain cellulose Iβ microfibrils at room temperature with three carbohydrate force fields (CHARMM35, GLYCAM06, and Gromos 45a4) up to the near-microsecond time scale. Our results indicate that each of these simulated microfibrils diverge from the cellulose Iβ crystal structure to varying degrees under the conditions tested. The CHARMM35 and GLYCAM06 force fields eventually result in structures similar to those observed at 500 K with the same force fields, which are consistent with the experimentally observed high-temperature behavior of cellulose I. The third force field, Gromos 45a4, produces behavior significantly different from experiment, from the other two force fields, and from previously reported simulations with this force field using shorter simulation times and constrained periodic boundary conditions. For the GLYCAM06 force field, initial hydrogen-bond conformations and choice of electrostatic scaling factors significantly affect the rate of structural divergence. Our results suggest dramatically different time scales for convergence of properties of interest, which is important in the design of computational studies and comparisons to experimental data. This study highlights that further experimental and theoretical work is required to understand the structure of small diameter cellulose microfibrils typical of plant cellulose.

An open-access CMIP5 pattern library for temperature and precipitation: description and methodology

NASA Astrophysics Data System (ADS)

Lynch, Cary; Hartin, Corinne; Bond-Lamberty, Ben; Kravitz, Ben

2017-05-01

Pattern scaling is used to efficiently emulate general circulation models and explore uncertainty in climate projections under multiple forcing scenarios. Pattern scaling methods assume that local climate changes scale with a global mean temperature increase, allowing for spatial patterns to be generated for multiple models for any future emission scenario. For uncertainty quantification and probabilistic statistical analysis, a library of patterns with descriptive statistics for each file would be beneficial, but such a library does not presently exist. Of the possible techniques used to generate patterns, the two most prominent are the delta and least squares regression methods. We explore the differences and statistical significance between patterns generated by each method and assess performance of the generated patterns across methods and scenarios. Differences in patterns across seasons between methods and epochs were largest in high latitudes (60-90° N/S). Bias and mean errors between modeled and pattern-predicted output from the linear regression method were smaller than patterns generated by the delta method. Across scenarios, differences in the linear regression method patterns were more statistically significant, especially at high latitudes. We found that pattern generation methodologies were able to approximate the forced signal of change to within ≤ 0.5 °C, but the choice of pattern generation methodology for pattern scaling purposes should be informed by user goals and criteria. This paper describes our library of least squares regression patterns from all CMIP5 models for temperature and precipitation on an annual and sub-annual basis, along with the code used to generate these patterns. The dataset and netCDF data generation code are available at doi:10.5281/zenodo.495632.

Three Dimensional Distribution of Sensitive Field and Stress Field Inversion of Force Sensitive Materials under Constant Current Excitation.

PubMed

Zhao, Shuanfeng; Liu, Min; Guo, Wei; Zhang, Chuanwei

2018-02-28

Force sensitive conductive composite materials are functional materials which can be used as the sensitive material of force sensors. However, the existing sensors only use one-dimensional electrical properties of force sensitive conductive materials. Even in tactile sensors, the measurement of contact pressure is achieved by large-scale arrays and the units of a large-scale array are also based on the one-dimensional electrical properties of force sensitive materials. The main contribution of this work is to study the three-dimensional electrical properties and the inversion method of three-dimensional stress field of a force sensitive material (conductive rubber), which pushes the application of force sensitive material from one dimensional to three-dimensional. First, the mathematical model of the conductive rubber current field distribution under a constant force is established by the effective medium theory, and the current field distribution model of conductive rubber with different geometry, conductive rubber content and conductive rubber relaxation parameters is deduced. Secondly, the inversion method of the three-dimensional stress field of conductive rubber is established, which provides a theoretical basis for the design of a new tactile sensor, three-dimensional stress field and space force based on force sensitive materials.

Comparison of three empirical force fields for phonon calculations in CdSe quantum dots

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kelley, Anne Myers

Three empirical interatomic force fields are parametrized using structural, elastic, and phonon dispersion data for bulk CdSe and their predictions are then compared for the structures and phonons of CdSe quantum dots having average diameters of ~2.8 and ~5.2 nm (~410 and ~2630 atoms, respectively). The three force fields include one that contains only two-body interactions (Lennard-Jones plus Coulomb), a Tersoff-type force field that contains both two-body and three-body interactions but no Coulombic terms, and a Stillinger-Weber type force field that contains Coulombic interactions plus two-body and three-body terms. While all three force fields predict nearly identical peak frequencies formore » the strongly Raman-active “longitudinal optical” phonon in the quantum dots, the predictions for the width of the Raman peak, the peak frequency and width of the infrared absorption peak, and the degree of disorder in the structure are very different. The three force fields also give very different predictions for the variation in phonon frequency with radial position (core versus surface). The Stillinger-Weber plus Coulomb type force field gives the best overall agreement with available experimental data.« less

Optimized molecular dynamics force fields applied to the helix-coil transition of polypeptides.

PubMed

Best, Robert B; Hummer, Gerhard

2009-07-02

Obtaining the correct balance of secondary structure propensities is a central priority in protein force-field development. Given that current force fields differ significantly in their alpha-helical propensities, a correction to match experimental results would be highly desirable. We have determined simple backbone energy corrections for two force fields to reproduce the fraction of helix measured in short peptides at 300 K. As validation, we show that the optimized force fields produce results in excellent agreement with nuclear magnetic resonance experiments for folded proteins and short peptides not used in the optimization. However, despite the agreement at ambient conditions, the dependence of the helix content on temperature is too weak, a problem shared with other force fields. A fit of the Lifson-Roig helix-coil theory shows that both the enthalpy and entropy of helix formation are too small: the helix extension parameter w agrees well with experiment, but its entropic and enthalpic components are both only about half the respective experimental estimates. Our structural and thermodynamic analyses point toward the physical origins of these shortcomings in current force fields, and suggest ways to address them in future force-field development.

Using Spherical-Harmonics Expansions for Optics Surface Reconstruction from Gradients.

PubMed

Solano-Altamirano, Juan Manuel; Vázquez-Otero, Alejandro; Khikhlukha, Danila; Dormido, Raquel; Duro, Natividad

2017-11-30

In this paper, we propose a new algorithm to reconstruct optics surfaces (aka wavefronts) from gradients, defined on a circular domain, by means of the Spherical Harmonics. The experimental results indicate that this algorithm renders the same accuracy, compared to the reconstruction based on classical Zernike polynomials, using a smaller number of polynomial terms, which potentially speeds up the wavefront reconstruction. Additionally, we provide an open-source C++ library, released under the terms of the GNU General Public License version 2 (GPLv2), wherein several polynomial sets are coded. Therefore, this library constitutes a robust software alternative for wavefront reconstruction in a high energy laser field, optical surface reconstruction, and, more generally, in surface reconstruction from gradients. The library is a candidate for being integrated in control systems for optical devices, or similarly to be used in ad hoc simulations. Moreover, it has been developed with flexibility in mind, and, as such, the implementation includes the following features: (i) a mock-up generator of various incident wavefronts, intended to simulate the wavefronts commonly encountered in the field of high-energy lasers production; (ii) runtime selection of the library in charge of performing the algebraic computations; (iii) a profiling mechanism to measure and compare the performance of different steps of the algorithms and/or third-party linear algebra libraries. Finally, the library can be easily extended to include additional dependencies, such as porting the algebraic operations to specific architectures, in order to exploit hardware acceleration features.

Using Spherical-Harmonics Expansions for Optics Surface Reconstruction from Gradients

PubMed Central

Solano-Altamirano, Juan Manuel; Khikhlukha, Danila

2017-01-01

In this paper, we propose a new algorithm to reconstruct optics surfaces (aka wavefronts) from gradients, defined on a circular domain, by means of the Spherical Harmonics. The experimental results indicate that this algorithm renders the same accuracy, compared to the reconstruction based on classical Zernike polynomials, using a smaller number of polynomial terms, which potentially speeds up the wavefront reconstruction. Additionally, we provide an open-source C++ library, released under the terms of the GNU General Public License version 2 (GPLv2), wherein several polynomial sets are coded. Therefore, this library constitutes a robust software alternative for wavefront reconstruction in a high energy laser field, optical surface reconstruction, and, more generally, in surface reconstruction from gradients. The library is a candidate for being integrated in control systems for optical devices, or similarly to be used in ad hoc simulations. Moreover, it has been developed with flexibility in mind, and, as such, the implementation includes the following features: (i) a mock-up generator of various incident wavefronts, intended to simulate the wavefronts commonly encountered in the field of high-energy lasers production; (ii) runtime selection of the library in charge of performing the algebraic computations; (iii) a profiling mechanism to measure and compare the performance of different steps of the algorithms and/or third-party linear algebra libraries. Finally, the library can be easily extended to include additional dependencies, such as porting the algebraic operations to specific architectures, in order to exploit hardware acceleration features. PMID:29189722

Front End Software for Online Database Searching. Part 2: The Marketplace.

ERIC Educational Resources Information Center

Levy, Louise R.; Hawkins, Donald T.

1986-01-01

This article analyzes the front end software marketplace and discusses some of the complex forces influencing it. Discussion covers intermediary market; end users (library customers, scientific and technical professionals, corporate business specialists, consumers); marketing strategies; a British front end development firm; competitive pressures;…

Classroom Management and the Librarian

ERIC Educational Resources Information Center

Blackburn, Heidi; Hays, Lauren

2014-01-01

As librarians take on more instructional responsibilities, the need for classroom management skills becomes vital. Unfortunately, classroom management skills are not taught in library school and therefore, many librarians are forced to learn how to manage a classroom on the job. Different classroom settings such as one-shot instruction sessions…

Promoting International Energy Security. Volume 1: Understanding Potential Air Force Roles

DTIC Science & Technology

2012-01-01

obtain additional information, contact Distribution Services: Telephone: (310) 451 -7002; Fax: (310) 451 -6915; Email: order@rand.org Library of...raise the temperature of one pound of water one degree Fahrenheit ) DoD Department of Defense EIA U.S. Energy Information Administration IEA International

Prior Consent: Not-So-Strange Bedfellows Plan Library/Computing Partnerships.

ERIC Educational Resources Information Center

McDonough, Kristin

The increasing sophistication of information technologies and the nearly universal access to computing have blurred distinctions among information delivery units on college campuses, forcing institutions to rethink the separate organizational structures that evolved when computing in academe was more localized and less prevalent. Experiences in…

The Rayleigh Papers

NASA Astrophysics Data System (ADS)

Miller, Thomas; Bederson, Benjamin

2005-04-01

The Third Lord Rayleigh (1842-1919), aka John William Strutt, was among the most stellar physicists of the Nineteenth Century, in both theory and experiment. He spent most of his mature years in his own laboratory, self-funded, on his family estate. One of the consequences was the fact that all of his papers remained at the estate upon his death. After his son's (Robert John Strutt, 1875-1947) death both their scientific papers ended up on the auction block. (Robert John was himself an atmospheric physicist.) Part of the Strutt collection went to the Burndy Library of the Dibner Institute at MIT, but most landed in the library at the US Air Force Cambridge Research Laboratory (now the Air Force Research Laboratory at Hansom AFB), purchased from the auctioneer out of library funds, for 9,000. The individual most responsible for preserving these papers was John N. Howard, the laboratory Chief Scientist, who was a founding editor of the journal Applied Optics. Recently the authors examined first hand the Rayleigh papers. Included in these are a complete set of his handwritten scientific notes, taken over the period 1862-1919, from the time he was a student at Trinity College, Cambridge until just months before his death. We will show a number of interesting examples from these notes, including his first identification of argon, as well as some other fascinating items from the collection.

Empirical temperature-dependent intermolecular potentials determined by data mining from crystal data

NASA Astrophysics Data System (ADS)

Hofmann, D. W. M.; Kuleshova, L. N.

2018-05-01

Modern force fields are accurate enough to describe thermal effects in molecular crystals. Here, we have extended our earlier approach to discrete force fields for various temperatures to a force field with a continuous function. For the parametrisation of the force field, we used data mining on experimental structures with the temperature as an additional descriptor. The obtained force field can be used to minimise energy at a finite temperature and for molecular dynamics with zero-K potentials. The applicability of the method has been demonstrated for the prediction of crystal density, temperature density gradients and transition temperature.

Microdot - A Four-Bit Microcontroller Designed for Distributed Low-End Computing in Satellites

NASA Astrophysics Data System (ADS)

2002-03-01

Many satellites are an integrated collection of sensors and actuators that require dedicated real-time control. For single processor systems, additional sensors require an increase in computing power and speed to provide the multi-tasking capability needed to service each sensor. Faster processors cost more and consume more power, which taxes a satellite's power resources and may lead to shorter satellite lifetimes. An alternative design approach is a distributed network of small and low power microcontrollers designed for space that handle the computing requirements of each individual sensor and actuator. The design of microdot, a four-bit microcontroller for distributed low-end computing, is presented. The design is based on previous research completed at the Space Electronics Branch, Air Force Research Laboratory (AFRL/VSSE) at Kirtland AFB, NM, and the Air Force Institute of Technology at Wright-Patterson AFB, OH. The Microdot has 29 instructions and a 1K x 4 instruction memory. The distributed computing architecture is based on the Philips Semiconductor I2C Serial Bus Protocol. A prototype was implemented and tested using an Altera Field Programmable Gate Array (FPGA). The prototype was operable to 9.1 MHz. The design was targeted for fabrication in a radiation-hardened-by-design gate-array cell library for the TSMC 0.35 micrometer CMOS process.

Contents of a core library in continuing medical education: a Delphi study.

PubMed

Olson, Curtis A; Tooman, Tricia R; Leist, James C

2005-01-01

In developing their professional competence, those who are interested in the practice of continuing medical education (CME) should recognize the knowledge base that defines their field. This study systematically identifies and organizes a list of books and journals comprising a core library (100 books/15 journals) for CME professionals. The Delphi method was applied to elicit and combine the judgments of a fifty member panel considered knowledgeable about the CME field. The panelists participated in three iterations of the survey to first identify and then rank order nominated works. Separate ranked lists were created for books and journals. Forty-four participants completed the study (88% response rate). 268 books and 34 journals were identified. Mean ratings ranged from 4.78 (high) to 1.50 (low). The results of the study reflect the panel's judgment. The list is not definitive; instead, it describes what a select group of individuals knowledgeable about the CME field considered important. The list should therefore be seen as a general guide and a resource to facilitate decision-making, not as a prescription for creating a library.

A Comparison of Classical Force-Fields for Molecular Dynamics Simulations of Lubricants

PubMed Central

Ewen, James P.; Gattinoni, Chiara; Thakkar, Foram M.; Morgan, Neal; Spikes, Hugh A.; Dini, Daniele

2016-01-01

For the successful development and application of lubricants, a full understanding of their complex nanoscale behavior under a wide range of external conditions is required, but this is difficult to obtain experimentally. Nonequilibrium molecular dynamics (NEMD) simulations can be used to yield unique insights into the atomic-scale structure and friction of lubricants and additives; however, the accuracy of the results depend on the chosen force-field. In this study, we demonstrate that the use of an accurate, all-atom force-field is critical in order to; (i) accurately predict important properties of long-chain, linear molecules; and (ii) reproduce experimental friction behavior of multi-component tribological systems. In particular, we focus on n-hexadecane, an important model lubricant with a wide range of industrial applications. Moreover, simulating conditions common in tribological systems, i.e., high temperatures and pressures (HTHP), allows the limits of the selected force-fields to be tested. In the first section, a large number of united-atom and all-atom force-fields are benchmarked in terms of their density and viscosity prediction accuracy of n-hexadecane using equilibrium molecular dynamics (EMD) simulations at ambient and HTHP conditions. Whilst united-atom force-fields accurately reproduce experimental density, the viscosity is significantly under-predicted compared to all-atom force-fields and experiments. Moreover, some all-atom force-fields yield elevated melting points, leading to significant overestimation of both the density and viscosity. In the second section, the most accurate united-atom and all-atom force-field are compared in confined NEMD simulations which probe the structure and friction of stearic acid adsorbed on iron oxide and separated by a thin layer of n-hexadecane. The united-atom force-field provides an accurate representation of the structure of the confined stearic acid film; however, friction coefficients are consistently under-predicted and the friction-coverage and friction-velocity behavior deviates from that observed using all-atom force-fields and experimentally. This has important implications regarding force-field selection for NEMD simulations of systems containing long-chain, linear molecules; specifically, it is recommended that accurate all-atom potentials, such as L-OPLS-AA, are employed. PMID:28773773

A Comparison of Classical Force-Fields for Molecular Dynamics Simulations of Lubricants.

PubMed

Ewen, James P; Gattinoni, Chiara; Thakkar, Foram M; Morgan, Neal; Spikes, Hugh A; Dini, Daniele

2016-08-02

For the successful development and application of lubricants, a full understanding of their complex nanoscale behavior under a wide range of external conditions is required, but this is difficult to obtain experimentally. Nonequilibrium molecular dynamics (NEMD) simulations can be used to yield unique insights into the atomic-scale structure and friction of lubricants and additives; however, the accuracy of the results depend on the chosen force-field. In this study, we demonstrate that the use of an accurate, all-atom force-field is critical in order to; (i) accurately predict important properties of long-chain, linear molecules; and (ii) reproduce experimental friction behavior of multi-component tribological systems. In particular, we focus on n -hexadecane, an important model lubricant with a wide range of industrial applications. Moreover, simulating conditions common in tribological systems, i.e., high temperatures and pressures (HTHP), allows the limits of the selected force-fields to be tested. In the first section, a large number of united-atom and all-atom force-fields are benchmarked in terms of their density and viscosity prediction accuracy of n -hexadecane using equilibrium molecular dynamics (EMD) simulations at ambient and HTHP conditions. Whilst united-atom force-fields accurately reproduce experimental density, the viscosity is significantly under-predicted compared to all-atom force-fields and experiments. Moreover, some all-atom force-fields yield elevated melting points, leading to significant overestimation of both the density and viscosity. In the second section, the most accurate united-atom and all-atom force-field are compared in confined NEMD simulations which probe the structure and friction of stearic acid adsorbed on iron oxide and separated by a thin layer of n -hexadecane. The united-atom force-field provides an accurate representation of the structure of the confined stearic acid film; however, friction coefficients are consistently under-predicted and the friction-coverage and friction-velocity behavior deviates from that observed using all-atom force-fields and experimentally. This has important implications regarding force-field selection for NEMD simulations of systems containing long-chain, linear molecules; specifically, it is recommended that accurate all-atom potentials, such as L-OPLS-AA, are employed.

The Central American Network for Disaster and Health Information.

PubMed

Arnesen, Stacey J; Cid, Victor H; Scott, John C; Perez, Ricardo; Zervaas, Dave

2007-07-01

This paper describes an international outreach program to support rebuilding Central America's health information infrastructure after several natural disasters in the region, including Hurricane Mitch in 1998 and two major earthquakes in 2001. The National Library of Medicine joined forces with the Pan American Health Organization/World Health Organization, the United Nations International Strategy for Disaster Reduction, and the Regional Center of Disaster Information for Latin America and the Caribbean (CRID) to strengthen libraries and information centers in Central America and improve the availability of and access to health and disaster information in the region by developing the Central American Network for Disaster and Health Information (CANDHI). Through CRID, the program created ten disaster health information centers in medical libraries and disaster-related organizations in six countries. This project served as a catalyst for the modernization of several medical libraries in Central America. The resulting CANDHI provides much needed electronic access to public health "gray literature" on disasters, as well as access to numerous health information resources. CANDHI members assist their institutions and countries in a variety of disaster preparedness activities through collecting and disseminating information.

Effects of force fields on the conformational and dynamic properties of amyloid β(1-40) dimer explored by replica exchange molecular dynamics simulations.

PubMed

Watts, Charles R; Gregory, Andrew; Frisbie, Cole; Lovas, Sándor

2018-03-01

The conformational space and structural ensembles of amyloid beta (Aβ) peptides and their oligomers in solution are inherently disordered and proven to be challenging to study. Optimum force field selection for molecular dynamics (MD) simulations and the biophysical relevance of results are still unknown. We compared the conformational space of the Aβ(1-40) dimers by 300 ns replica exchange MD simulations at physiological temperature (310 K) using: the AMBER-ff99sb-ILDN, AMBER-ff99sb*-ILDN, AMBER-ff99sb-NMR, and CHARMM22* force fields. Statistical comparisons of simulation results to experimental data and previously published simulations utilizing the CHARMM22* and CHARMM36 force fields were performed. All force fields yield sampled ensembles of conformations with collision cross sectional areas for the dimer that are statistically significantly larger than experimental results. All force fields, with the exception of AMBER-ff99sb-ILDN (8.8 ± 6.4%) and CHARMM36 (2.7 ± 4.2%), tend to overestimate the α-helical content compared to experimental CD (5.3 ± 5.2%). Using the AMBER-ff99sb-NMR force field resulted in the greatest degree of variance (41.3 ± 12.9%). Except for the AMBER-ff99sb-NMR force field, the others tended to under estimate the expected amount of β-sheet and over estimate the amount of turn/bend/random coil conformations. All force fields, with the exception AMBER-ff99sb-NMR, reproduce a theoretically expected β-sheet-turn-β-sheet conformational motif, however, only the CHARMM22* and CHARMM36 force fields yield results compatible with collapse of the central and C-terminal hydrophobic cores from residues 17-21 and 30-36. Although analyses of essential subspace sampling showed only minor variations between force fields, secondary structures of lowest energy conformers are different. © 2017 Wiley Periodicals, Inc.

Catch trials in force field learning influence adaptation and consolidation of human motor memory

PubMed Central

Stockinger, Christian; Focke, Anne; Stein, Thorsten

2014-01-01

Force field studies are a common tool to investigate motor adaptation and consolidation. Thereby, subjects usually adapt their reaching movements to force field perturbations induced by a robotic device. In this context, so-called catch trials, in which the disturbing forces are randomly turned off, are commonly used to detect after-effects of motor adaptation. However, catch trials also produce sudden large motor errors that might influence the motor adaptation and the consolidation process. Yet, the detailed influence of catch trials is far from clear. Thus, the aim of this study was to investigate the influence of catch trials on motor adaptation and consolidation in force field experiments. Therefore, 105 subjects adapted their reaching movements to robot-generated force fields. The test groups adapted their reaching movements to a force field A followed by learning a second interfering force field B before retest of A (ABA). The control groups were not exposed to force field B (AA). To examine the influence of diverse catch trial ratios, subjects received catch trials during force field adaptation with a probability of either 0, 10, 20, 30, or 40%, depending on the group. First, the results on motor adaptation revealed significant differences between the diverse catch trial ratio groups. With increasing amount of catch trials, the subjects' motor performance decreased and subjects' ability to accurately predict the force field—and therefore internal model formation—was impaired. Second, our results revealed that adapting with catch trials can influence the following consolidation process as indicated by a partial reduction to interference. Here, the optimal catch trial ratio was 30%. However, detection of consolidation seems to be biased by the applied measure of performance. PMID:24795598

The multiscale coarse-graining method. II. Numerical implementation for coarse-grained molecular models

PubMed Central

Noid, W. G.; Liu, Pu; Wang, Yanting; Chu, Jhih-Wei; Ayton, Gary S.; Izvekov, Sergei; Andersen, Hans C.; Voth, Gregory A.

2008-01-01

The multiscale coarse-graining (MS-CG) method [S. Izvekov and G. A. Voth, J. Phys. Chem. B 109, 2469 (2005);J. Chem. Phys. 123, 134105 (2005)] employs a variational principle to determine an interaction potential for a CG model from simulations of an atomically detailed model of the same system. The companion paper proved that, if no restrictions regarding the form of the CG interaction potential are introduced and if the equilibrium distribution of the atomistic model has been adequately sampled, then the MS-CG variational principle determines the exact many-body potential of mean force (PMF) governing the equilibrium distribution of CG sites generated by the atomistic model. In practice, though, CG force fields are not completely flexible, but only include particular types of interactions between CG sites, e.g., nonbonded forces between pairs of sites. If the CG force field depends linearly on the force field parameters, then the vector valued functions that relate the CG forces to these parameters determine a set of basis vectors that span a vector subspace of CG force fields. The companion paper introduced a distance metric for the vector space of CG force fields and proved that the MS-CG variational principle determines the CG force force field that is within that vector subspace and that is closest to the force field determined by the many-body PMF. The present paper applies the MS-CG variational principle for parametrizing molecular CG force fields and derives a linear least squares problem for the parameter set determining the optimal approximation to this many-body PMF. Linear systems of equations for these CG force field parameters are derived and analyzed in terms of equilibrium structural correlation functions. Numerical calculations for a one-site CG model of methanol and a molecular CG model of the EMIM+∕NO3− ionic liquid are provided to illustrate the method. PMID:18601325

QuickFF: A program for a quick and easy derivation of force fields for metal-organic frameworks from ab initio input.

PubMed

Vanduyfhuys, Louis; Vandenbrande, Steven; Verstraelen, Toon; Schmid, Rochus; Waroquier, Michel; Van Speybroeck, Veronique

2015-05-15

QuickFF is a software package to derive accurate force fields for isolated and complex molecular systems in a quick and easy manner. Apart from its general applicability, the program has been designed to generate force fields for metal-organic frameworks in an automated fashion. The force field parameters for the covalent interaction are derived from ab initio data. The mathematical expression of the covalent energy is kept simple to ensure robustness and to avoid fitting deficiencies as much as possible. The user needs to produce an equilibrium structure and a Hessian matrix for one or more building units. Afterward, a force field is generated for the system using a three-step method implemented in QuickFF. The first two steps of the methodology are designed to minimize correlations among the force field parameters. In the last step, the parameters are refined by imposing the force field parameters to reproduce the ab initio Hessian matrix in Cartesian coordinate space as accurate as possible. The method is applied on a set of 1000 organic molecules to show the easiness of the software protocol. To illustrate its application to metal-organic frameworks (MOFs), QuickFF is used to determine force fields for MIL-53(Al) and MOF-5. For both materials, accurate force fields were already generated in literature but they requested a lot of manual interventions. QuickFF is a tool that can easily be used by anyone with a basic knowledge of performing ab initio calculations. As a result, accurate force fields are generated with minimal effort. © 2015 Wiley Periodicals, Inc. © 2015 Wiley Periodicals, Inc.

Toward polarizable AMOEBA thermodynamics at fixed charge efficiency using a dual force field approach: application to organic crystals.

PubMed

Nessler, Ian J; Litman, Jacob M; Schnieders, Michael J

2016-11-09

First principles prediction of the structure, thermodynamics and solubility of organic molecular crystals, which play a central role in chemical, material, pharmaceutical and engineering sciences, challenges both potential energy functions and sampling methodologies. Here we calculate absolute crystal deposition thermodynamics using a novel dual force field approach whose goal is to maintain the accuracy of advanced multipole force fields (e.g. the polarizable AMOEBA model) while performing more than 95% of the sampling in an inexpensive fixed charge (FC) force field (e.g. OPLS-AA). Absolute crystal sublimation/deposition phase transition free energies were determined using an alchemical path that grows the crystalline state from a vapor reference state based on sampling with the OPLS-AA force field, followed by dual force field thermodynamic corrections to change between FC and AMOEBA resolutions at both end states (we denote the three step path as AMOEBA/FC). Importantly, whereas the phase transition requires on the order of 200 ns of sampling per compound, only 5 ns of sampling was needed for the dual force field thermodynamic corrections to reach a mean statistical uncertainty of 0.05 kcal mol -1 . For five organic compounds, the mean unsigned error between direct use of AMOEBA and the AMOEBA/FC dual force field path was only 0.2 kcal mol -1 and not statistically significant. Compared to experimental deposition thermodynamics, the mean unsigned error for AMOEBA/FC (1.4 kcal mol -1 ) was more than a factor of two smaller than uncorrected OPLS-AA (3.2 kcal mol -1 ). Overall, the dual force field thermodynamic corrections reduced condensed phase sampling in the expensive force field by a factor of 40, and may prove useful for protein stability or binding thermodynamics in the future.

The electromagnetic force field, fluid flow field and temperature profiles in levitated metal droplets

NASA Technical Reports Server (NTRS)

El-Kaddah, N.; Szekely, J.

1982-01-01

A mathematical representation was developed for the electromagnetic force field, the flow field, the temperature field (and for transport controlled kinetics), in a levitation melted metal droplet. The technique of mutual inductances was employed for the calculation of the electromagnetic force field, while the turbulent Navier - Stokes equations and the turbulent convective transport equations were used to represent the fluid flow field, the temperature field and the concentration field. The governing differential equations, written in spherical coordinates, were solved numerically. The computed results were in good agreement with measurements, regarding the lifting force, and the average temperature of the specimen and carburization rates, which were transport controlled.

Librarian-Faculty Relations during a Period of Journals Cancellations.

ERIC Educational Resources Information Center

Sapp, Gregg; Watson, Peter G.

1989-01-01

Reviews the trends in scholarly publishing that are forcing many academic libraries to cancel subscriptions to high priced or seldom used titles. A strategy of librarian-faculty communications in which faculty awareness and support were enlisted during a periodicals cancellation effort at Idaho State University is described. (31 references) (CLB)

Tough Times Push More Small Colleges to Join Forces

ERIC Educational Resources Information Center

Carlson, Scott

2013-01-01

The author reports on how colleges could work together more closely in areas like the library, the colleges' technology infrastructure, human resources and payroll, and, ultimately, their academic programs. Higher education has some famous collaborations--the best-known among them are the Claremont Colleges, where seven institutions, each with a…

Research Links the Arts with Student Academic Gains

ERIC Educational Resources Information Center

Gullatt, David E.

2007-01-01

State and national accountability initiatives are forcing educational administrators to seek curricular interventions that will yield the greatest improvement in students' academic performance in the least amount of time. Though volumes of documentation regarding the value of the arts in education line the shelves of professional libraries and…

Transformative Sharing with Instant Messaging, Wikis, Interactive Maps, and Flickr

ERIC Educational Resources Information Center

Chase, Darren

2007-01-01

Smart librarians have always valued their relationships with users and other librarians. The creative force of those relationships is empowered via Web-based social networking, collaboration, and sharing. At Stony Brook University Health Sciences Library in New York, students, faculty, clinicians, and residents expect the latest refinements in…

Extracting the potential-well of a near-field optical trap using the Helmholtz-Hodge decomposition

NASA Astrophysics Data System (ADS)

Zaman, Mohammad Asif; Padhy, Punnag; Hansen, Paul C.; Hesselink, Lambertus

2018-02-01

The non-conservative nature of the force field generated by a near-field optical trap is analyzed. A plasmonic C-shaped engraving on a gold film is considered as the trap. The force field is calculated using the Maxwell stress tensor method. The Helmholtz-Hodge decomposition is used to extract the conservative and the non-conservative component of the force. Due to the non-negligible non-conservative component, it is found that the conventional approach of extracting the potential by direct integration of the force is not accurate. Despite the non-conservative nature of the force field, it is found that the statistical properties of a trapped nanoparticle can be estimated from the conservative component of the force field alone. Experimental and numerical results are presented to support the claims.

Crystal Field Splittings of the Hund Ground States of Nd(N) Ions in S4 Symmetry: Theory and Application to the Ga(3+) Site of Gd3Sc2Ga3O12.

DTIC Science & Technology

1984-03-01

DRDAR-TSS-S (STINFO) ATTN DRXRES-RTL, TECH LIBRARY ABERDEN PROVING GROUND , MD 21005 NATICK, MA 01762 23 %.. * ,w...DRXSY-MP (LIBRARY) ABERDEEN PROVING GROUND , MD 21005 UNDER SECRETARY OF DEFENSE RES £ ENGINEERING COMMANDER ATTN TECHNICAL LIBRARY, 3C128 US ARMY MISSILE...SANDS MISSILE RANGE, N 88002 ABERDEEN PROVING GROUND , MD 21005 DIRECTOR COMMANDER 08 RMM BALLISTIC RESEARCH LABORATORY US ARMY TROOP SUPPORT COMMAND AT

DAMQT: A package for the analysis of electron density in molecules

NASA Astrophysics Data System (ADS)

López, Rafael; Rico, Jaime Fernández; Ramírez, Guillermo; Ema, Ignacio; Zorrilla, David

2009-09-01

DAMQT is a package for the analysis of the electron density in molecules and the fast computation of the density, density deformations, electrostatic potential and field, and Hellmann-Feynman forces. The method is based on the partition of the electron density into atomic fragments by means of a least deformation criterion. Each atomic fragment of the density is expanded in regular spherical harmonics times radial factors, which are piecewise represented in terms of analytical functions. This representation is used for the fast evaluation of the electrostatic potential and field generated by the electron density and nuclei, as well as for the computation of the Hellmann-Feynman forces on the nuclei. An analysis of the atomic and molecular deformations of the density can be also carried out, yielding a picture that connects with several concepts of the empirical structural chemistry. Program summaryProgram title: DAMQT1.0 Catalogue identifier: AEDL_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEDL_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: GPLv3 No. of lines in distributed program, including test data, etc.: 278 356 No. of bytes in distributed program, including test data, etc.: 31 065 317 Distribution format: tar.gz Programming language: Fortran90 and C++ Computer: Any Operating system: Linux, Windows (Xp, Vista) RAM: 190 Mbytes Classification: 16.1 External routines: Trolltech's Qt (4.3 or higher) ( http://www.qtsoftware.com/products), OpenGL (1.1 or higher) ( http://www.opengl.org/), GLUT 3.7 ( http://www.opengl.org/resources/libraries/glut/). Nature of problem: Analysis of the molecular electron density and density deformations, including fast evaluation of electrostatic potential, electric field and Hellmann-Feynman forces on nuclei. Solution method: The method of Deformed Atoms in Molecules, reported elsewhere [1], is used for partitioning the molecular electron density into atomic fragments, which are further expanded in spherical harmonics times radial factors. The partition is used for defining molecular density deformations and for the fast calculation of several properties associated to density. Restrictions: The current version is limited to 120 atoms, 2000 contracted functions, and l=5 in basis functions. Density must come from a LCAO calculation (any level) with spherical (not Cartesian) Gaussian functions. Unusual features: The program contains an OPEN statement to binary files (stream) in file GOPENMOL.F90. This statement has not a standard syntax in Fortran 90. Two possibilities are considered in conditional compilation: Intel's ifort and Fortran2003 standard. This latter is applied to compilers other than ifort (gfortran uses this one, for instance). Additional comments: The distribution file for this program is over 30 Mbytes and therefore is not delivered directly when download or e-mail is requested. Instead a html file giving details of how the program can be obtained is sent. Running time: Largely dependent on the system size and the module run (from fractions of a second to hours). References: [1] J. Fernández Rico, R. López, I. Ema, G. Ramírez, J. Mol. Struct. (Theochem) 727 (2005) 115.

On the Ample Service Assumption of Palm’s Theorem in Inventory Modeling.

DTIC Science & Technology

1980-10-03

c e1... . *. 0. "..M..g. -4 mooC ,00-0 $0OCO 0000000400rotN0 CO.0t0NO~ 0 000000000O00 000000a N0000000000O00 040N0N0C(C 0 M. 0. ow Sy * CP 0 *geo o ft...Sponsored Research For t Le. Library Vic e President H. F. Bright Cometanding Off!,rr. ,,SALDNRA De an Harold Liehositz New Cumberland ,rmy D put Dean...ogisics riftfiss Air For.e Ban Navy’Dept Library Rnliabilit y Anal ysis Center NAVDATA Automation Cund OP-964 Cunt "r Air Force Base APLMC/XR Naval

Muscle co-contraction patterns in robot-mediated force field learning to guide specific muscle group training.

PubMed

Pizzamiglio, Sara; Desowska, Adela; Shojaii, Pegah; Taga, Myriam; Turner, Duncan L

2017-01-01

Muscle co-contraction is a strategy of increasing movement accuracy and stability employed in dealing with force perturbation of movement. It is often seen in neuropathological populations. The direction of movement influences the pattern of co-contraction, but not all movements are easily achievable for populations with motor deficits. Manipulating the direction of the force instead, may be a promising rehabilitation protocol to train movement with use of a co-contraction reduction strategy. Force field learning paradigms provide a well described procedure to evoke and test muscle co-contraction. The aim of this study was to test the muscle co-contraction pattern in a wide range of arm muscles in different force-field directions utilising a robot-mediated force field learning paradigm of motor adaptation. Forty-two participants volunteered to participate in a study utilising robot-mediated force field motor adaptation paradigm with a clockwise or counter-clockwise force field. Kinematics and surface electromyography (EMG) of eight arm muscles were measured. Both muscle activation and co-contraction was earlier and stronger in flexors in the clockwise condition and in extensors in the counter-clockwise condition. Manipulating the force field direction leads to changes in the pattern of muscle co-contraction.

Continuing Education Opportunities for Library, Information, and Media Personnel. January 1, 1976--December 31, 1976.

ERIC Educational Resources Information Center

Continuing Library Education Network and Exchange, Washington, DC.

The first listing of continuing education opportunities for library, information, and media personnel in the United States includes 178 programs offered by 51 institutions and organizations for the year 1976. Program information comes from 24 states and the District of Columbia. The fields with the largest number of programs are: medical…

Core Journals in Library and Information Science: Developing a Methodology for Ranking LIS Journals

ERIC Educational Resources Information Center

Nixon, Judith M.

2014-01-01

In the library science field, there is no professionally accepted tiered list of journals in the United States to guide librarians, as there is in other academic disciplines. This situation creates a challenge for both new and experienced librarians who wish to make a serious contribution to librarianship by publishing articles. This article…

Mentoring, Collaboration, and Interdisciplinarity: An Evaluation of the Scholarly Development of Information and Library Science Doctoral Students

ERIC Educational Resources Information Center

Sugimoto, Cassidy R.

2010-01-01

This study evaluated the development of scholars within the field of information and library science (ILS) with an emphasis on mentoring, collaboration, and interdisciplinarity in the process of doctoral education. Using methodological triangulation of more than 200 questionnaires, 30 interviews, and the bibliometric analysis of 97 dissertation…

Selected reference aids for small medical libraries.

PubMed

Duncan, H F

1970-04-01

This annotated list of 178 items is compiled as a guide to the development of the reference collection in a small medical library.Arrangement, following the pattern of the previous revision, is by broad subject groups. Titles are chiefly in English. Textbooks in subject fields have been omitted since these are covered adequately in several comprehensive guides to the literature.

A Study of Changes in the Library and Information Science Curriculum with Evaluation of Its Practicality

ERIC Educational Resources Information Center

Noh, Younghee; Ahn, In-Ja; Choi, Sang-Ki

2012-01-01

Purpose: This study analyzed the process of changes in Korean Library and Information Science curriculum and evaluated the courses currently available by using a perception survey of librarians in the field. It also explored a possible demand for new courses, while suggesting compulsory, core, and optional courses for Bachelor's degree curriculum…

Barrier Buster: Kim Charlson--Perkins School for the Blind

ERIC Educational Resources Information Center

Library Journal, 2005

2005-01-01

Kim Charlson believes everyone should live life to the fullest no matter what their handicaps. Blind since early childhood, she chose librarianship because, as a braille reader and avid user of talking books, she wanted to be "in a decision-making capacity in the library field and influence the direction of library services for people with…

The Art of Change: The Impact of Place and the Future of Academic Art Library Collections

ERIC Educational Resources Information Center

Falls, Sarah; Hatheway, Holly

2015-01-01

Academic institutions have long supported stand-alone branch libraries devoted to fine arts, architecture, and other allied fields. As subject specific collecting on campuses has been decentralized by collaborative collection development, consortial borrowing, and the quick availability of materials in both digital and print formats, the need for…

Quantitative Methods in Library and Information Science Literature: Descriptive vs. Inferential Statistics.

ERIC Educational Resources Information Center

Brattin, Barbara C.

Content analysis was performed on the top six core journals for 1990 in library and information science to determine the extent of research in the field. Articles (n=186) were examined for descriptive or inferential statistics and separately for the presence of mathematical models. Results show a marked (14%) increase in research for 1990,…

ALA 2010 Midwinter Meeting: The Price to Participate

ERIC Educational Resources Information Center

Berry, John N., III

2009-01-01

While the library economy continues its downward slide, the cost of attending the American Library Association (ALA) Midwinter Meeting seems as high as ever. That is the price of professional participation. These days it seems a bit too high and tends to limit involvement in the old association to librarians in the higher echelons of the field.…

A Coworking Project in the Campus Library: Supporting and Modeling Entrepreneurial Activity in the Academic Library

ERIC Educational Resources Information Center

Lumley, Risa M.

2014-01-01

Advances in technology, changes in demographics, and the increasingly global nature of the economy indicate that many jobs lost during the recent global recession will not be returning. Regardless of their major field of study, college students would benefit greatly from becoming more entrepreneurial in their thinking, yet opportunities for…

Understanding Teacher Users of a Digital Library Service: A Clustering Approach

ERIC Educational Resources Information Center

Xu, Beijie; Recker, Mimi

2011-01-01

This article describes the Knowledge Discovery and Data Mining (KDD) process and its application in the field of educational data mining (EDM) in the context of a digital library service called the Instructional Architect (IA.usu.edu). In particular, the study reported in this article investigated a certain type of data mining problem, clustering,…

Nanomaterials for in vivo imaging of mechanical forces and electrical fields

NASA Astrophysics Data System (ADS)

Mehlenbacher, Randy D.; Kolbl, Rea; Lay, Alice; Dionne, Jennifer A.

2018-02-01

Cellular signalling is governed in large part by mechanical forces and electromagnetic fields. Mechanical forces play a critical role in cell differentiation, tissue organization and diseases such as cancer and heart disease; electrical fields are essential for intercellular communication, muscle contraction, neural signalling and sensory perception. Therefore, quantifying a biological system's forces and fields is crucial for understanding physiology and disease pathology and for developing medical tools for repair and recovery. This Review highlights advances in sensing mechanical forces and electrical fields in vivo, focusing on optical probes. The emergence of biocompatible optical probes, such as genetically encoded voltage indicators, molecular rotors, fluorescent dyes, semiconducting nanoparticles, plasmonic nanoparticles and lanthanide-doped upconverting nanoparticles, offers exciting opportunities to push the limits of spatial and temporal resolution, stability, multi-modality and stimuli sensitivity in bioimaging. We further discuss the materials design principles behind these probes and compare them across various metrics to facilitate sensor selection. Finally, we examine which advances are necessary to fully unravel the role of mechanical forces and electrical fields in vivo, such as the ability to probe the vectorial nature of forces, the development of combined force and field sensors, and the design of efficient optical actuators.

TET Offensive II Field Force Vietnam After Action Report 31 January - 18 February 1968

DTIC Science & Technology

1968-03-01

and the 5th VC Division. V During this same period of time there were no majur shifts in ARVN forces . However III Corps shifted three...8217-".•: ’ ’SSIFJED U.S. ARMY. VIETNAM. II FIELD FORCE . TET OFFENSIVE II FIELD FORCE VIETNAM AFTER ACTION REPORT, 31 JANUARY-18 FEB- RUARY 1968...H FIELD FORCE VIETNAM AFTER ACTION REPORT 31 January-18 February 1968 RECORD K0- ! FlSjl fi-.-A-,>-•: it tT*\\ : *si h s» -wP Mr-, £< St

Accuracy Test of the OPLS-AA Force Field for Calculating Free Energies of Mixing and Comparison with PAC-MAC

PubMed Central

2017-01-01

We have calculated the excess free energy of mixing of 1053 binary mixtures with the OPLS-AA force field using two different methods: thermodynamic integration (TI) of molecular dynamics simulations and the Pair Configuration to Molecular Activity Coefficient (PAC-MAC) method. PAC-MAC is a force field based quasi-chemical method for predicting miscibility properties of various binary mixtures. The TI calculations yield a root mean squared error (RMSE) compared to experimental data of 0.132 kBT (0.37 kJ/mol). PAC-MAC shows a RMSE of 0.151 kBT with a calculation speed being potentially 1.0 × 104 times greater than TI. OPLS-AA force field parameters are optimized using PAC-MAC based on vapor–liquid equilibrium data, instead of enthalpies of vaporization or densities. The RMSE of PAC-MAC is reduced to 0.099 kBT by optimizing 50 force field parameters. The resulting OPLS-PM force field has a comparable accuracy as the OPLS-AA force field in the calculation of mixing free energies using TI. PMID:28418655

Coupling West WRF to GSSHA with GSSHApy

NASA Astrophysics Data System (ADS)

Snow, A. D.

2017-12-01

The West WRF output data is in the gridded NetCDF output format containing the required forcing data needed to run a GSSHA simulation. These data include precipitation, pressure, temperature, relative humidity, cloud cover, wind speed, and solar radiation. Tools to reproject, resample, and reformat the data for GSSHA have recently been added to the open source Python library GSSHApy (https://github.com/ci-water/gsshapy). These tools have created a connection that has made it possible to run forecasts using the West WRF forcing data with GSSHA to produce both streamflow and lake level predictions.

Magnetic moment of solar plasma and the Kelvin force: -The driving force of plasma up-flow -

NASA Astrophysics Data System (ADS)

Shibasaki, Kiyoto

2017-04-01

Thermal plasma in the solar atmosphere is magnetized (diamagnetic). The magnetic moment does not disappear by collisions because complete gyration is not a necessary condition to have magnetic moment. Magnetized fluid is subjected to Kelvin force in non-uniform magnetic field. Generally, magnetic field strength decreases upwards in the solar atmosphere, hence the Kelvin force is directed upwards along the field. This force is not included in the fluid treatment of MHD. By adding the Kelvin force to the MHD equation of motion, we can expect temperature dependent plasma flows along the field which are reported by many observations. The temperature dependence of the flow speed is explained by temperature dependence of magnetic moment. From the observed parameters, we can infer physical parameters in the solar atmosphere such as scale length of the magnetic field strength and the friction force acting on the flowing plasma. In case of closed magnetic field lines, loop-top concentration of hot plasma is expected which is frequently observed.

Determination of a Screening Metric for High Diversity DNA Libraries.

PubMed

Guido, Nicholas J; Handerson, Steven; Joseph, Elaine M; Leake, Devin; Kung, Li A

2016-01-01

The fields of antibody engineering, enzyme optimization and pathway construction rely increasingly on screening complex variant DNA libraries. These highly diverse libraries allow researchers to sample a maximized sequence space; and therefore, more rapidly identify proteins with significantly improved activity. The current state of the art in synthetic biology allows for libraries with billions of variants, pushing the limits of researchers' ability to qualify libraries for screening by measuring the traditional quality metrics of fidelity and diversity of variants. Instead, when screening variant libraries, researchers typically use a generic, and often insufficient, oversampling rate based on a common rule-of-thumb. We have developed methods to calculate a library-specific oversampling metric, based on fidelity, diversity, and representation of variants, which informs researchers, prior to screening the library, of the amount of oversampling required to ensure that the desired fraction of variant molecules will be sampled. To derive this oversampling metric, we developed a novel alignment tool to efficiently measure frequency counts of individual nucleotide variant positions using next-generation sequencing data. Next, we apply a method based on the "coupon collector" probability theory to construct a curve of upper bound estimates of the sampling size required for any desired variant coverage. The calculated oversampling metric will guide researchers to maximize their efficiency in using highly variant libraries.

[The future of scientific libraries].

PubMed

De Fiore, Luca

2013-10-01

"Making predictions is always very difficult, especially about the future". Niels Bohr's quote is very appropriate when looking into the future of libraries. If the Web is now the richest library in the world, it is also the most friendly and therefore the most convenient. The evolution of libraries in the coming years - both traditional and online - will probably depend on their ability to meet the information needs of users: improved ease of use and better reliability of the information. These are objectives that require money and - given the general reduction in budgets - it is not obvious that the results will be achieved. However, there are many promising experiences at the international level that show that the world of libraries is populated by projects and creativity. Traditional or digital, libraries will increasingly present themselves more as a sharing tool than as a repository of information: it is the sharing that translates data into knowledge. In the healthcare field, the integration of online libraries with the epidemiological information systems could favor the fulfillment of unconscious information needs of health personnel; libraries will therefore be a key tool for an integrated answer to the challenge of continuing education in medicine. The Internet is no longer a library but an information ecosystem where the data are transformed into knowledge by sharing and discussion.

Java simulations of embedded control systems.

PubMed

Farias, Gonzalo; Cervin, Anton; Arzén, Karl-Erik; Dormido, Sebastián; Esquembre, Francisco

2010-01-01

This paper introduces a new Open Source Java library suited for the simulation of embedded control systems. The library is based on the ideas and architecture of TrueTime, a toolbox of Matlab devoted to this topic, and allows Java programmers to simulate the performance of control processes which run in a real time environment. Such simulations can improve considerably the learning and design of multitasking real-time systems. The choice of Java increases considerably the usability of our library, because many educators program already in this language. But also because the library can be easily used by Easy Java Simulations (EJS), a popular modeling and authoring tool that is increasingly used in the field of Control Education. EJS allows instructors, students, and researchers with less programming capabilities to create advanced interactive simulations in Java. The paper describes the ideas, implementation, and sample use of the new library both for pure Java programmers and for EJS users. The JTT library and some examples are online available on http://lab.dia.uned.es/jtt.

Java Simulations of Embedded Control Systems

PubMed Central

Farias, Gonzalo; Cervin, Anton; Årzén, Karl-Erik; Dormido, Sebastián; Esquembre, Francisco

2010-01-01

This paper introduces a new Open Source Java library suited for the simulation of embedded control systems. The library is based on the ideas and architecture of TrueTime, a toolbox of Matlab devoted to this topic, and allows Java programmers to simulate the performance of control processes which run in a real time environment. Such simulations can improve considerably the learning and design of multitasking real-time systems. The choice of Java increases considerably the usability of our library, because many educators program already in this language. But also because the library can be easily used by Easy Java Simulations (EJS), a popular modeling and authoring tool that is increasingly used in the field of Control Education. EJS allows instructors, students, and researchers with less programming capabilities to create advanced interactive simulations in Java. The paper describes the ideas, implementation, and sample use of the new library both for pure Java programmers and for EJS users. The JTT library and some examples are online available on http://lab.dia.uned.es/jtt. PMID:22163674

Communication: Multiple atomistic force fields in a single enhanced sampling simulation

NASA Astrophysics Data System (ADS)

Hoang Viet, Man; Derreumaux, Philippe; Nguyen, Phuong H.

2015-07-01

The main concerns of biomolecular dynamics simulations are the convergence of the conformational sampling and the dependence of the results on the force fields. While the first issue can be addressed by employing enhanced sampling techniques such as simulated tempering or replica exchange molecular dynamics, repeating these simulations with different force fields is very time consuming. Here, we propose an automatic method that includes different force fields into a single advanced sampling simulation. Conformational sampling using three all-atom force fields is enhanced by simulated tempering and by formulating the weight parameters of the simulated tempering method in terms of the energy fluctuations, the system is able to perform random walk in both temperature and force field spaces. The method is first demonstrated on a 1D system and then validated by the folding of the 10-residue chignolin peptide in explicit water.

Novel strategies in feedforward adaptation to a position-dependent perturbation.

PubMed

Hinder, Mark R; Milner, Theodore E

2005-08-01

To investigate the control mechanisms used in adapting to position-dependent forces, subjects performed 150 horizontal reaching movements over 25 cm in the presence of a position-dependent parabolic force field (PF). The PF acted only over the first 10 cm of the movement. On every fifth trial, a virtual mechanical guide (double wall) constrained subjects to move along a straight-line path between the start and target positions. Its purpose was to register lateral force to track formation of an internal model of the force field, and to look for evidence of possible alternative adaptive strategies. The force field produced a force to the right, which initially caused subjects to deviate in that direction. They reacted by producing deviations to the left, "into" the force field, as early as the second trial. Further adaptation resulted in rapid exponential reduction of kinematic error in the latter portion of the movement, where the greatest perturbation to the handpath was initially observed, whereas there was little modification of the handpath in the region where the PF was active. Significant force directed to counteract the PF was measured on the first guided trial, and was modified during the first half of the learning set. The total force impulse in the region of the PF increased throughout the learning trials, but it always remained less than that produced by the PF. The force profile did not resemble a mirror image of the PF in that it tended to be more trapezoidal than parabolic in shape. As in previous studies of force-field adaptation, we found that changes in muscle activation involved a general increase in the activity of all muscles, which increased arm stiffness, and selectively-greater increases in the activation of muscles which counteracted the PF. With training, activation was exponentially reduced, albeit more slowly than kinematic error. Progressive changes in kinematics and EMG occurred predominantly in the region of the workspace beyond the force field. We suggest that constraints on muscle mechanics limit the ability of the central nervous system to employ an inverse dynamics model to nullify impulse-like forces by generating mirror-image forces. Consequently, subjects adopted a strategy of slightly overcompensating for the first half of the force field, then allowing the force field to push them in the opposite direction. Muscle activity patterns in the region beyond the boundary of the force field were subsequently adjusted because of the relatively-slow response of the second-order mechanics of muscle impedance to the force impulse.

Bead-based screening in chemical biology and drug discovery.

PubMed

Komnatnyy, Vitaly V; Nielsen, Thomas E; Qvortrup, Katrine

2018-06-11

High-throughput screening is an important component of the drug discovery process. The screening of libraries containing hundreds of thousands of compounds requires assays amenable to miniaturisation and automization. Combinatorial chemistry holds a unique promise to deliver structurally diverse libraries for early drug discovery. Among the various library forms, the one-bead-one-compound (OBOC) library, where each bead carries many copies of a single compound, holds the greatest potential for the rapid identification of novel hits against emerging drug targets. However, this potential has not yet been fully realized due to a number of technical obstacles. In this feature article, we review the progress that has been made in bead-based library screening and its application to the discovery of bioactive compounds. We identify the key challenges of this approach and highlight key steps needed for making a greater impact in the field.

[Construction of large fragment metagenome library of natural mangrove soil].

PubMed

Jiang, Yun-Xia; Zheng, Tian-Ling

2007-11-01

Applying our optimized direct extraction method, the percentage of large fragment DNA in the total extracted mangrove soil DNA was significant increased. The large fragment metagenome library derived from natural mangrove soil over four seasons was successfully constructed by the optimized DNA extraction and electro elution purification method. All of the clones had recombinant Cosmids and each differed in their fragment profiles when Cosmid DNA was extracted from 12 randomly picked colonies and digested with BamHI. The average insert size for this library was larger than 35 kbp. This culturing-independent library at least encompassed 335 Mbp valuable genetic information of mangrove soil microbes. It allowed mining of valuable intertidal microbial resource to become a reality. It is a recommended method for those researchers who have still not circumvented the large insert environmental libraries or for those beginning research in this field, so as to avoid them attempting repetitive, fussy work.

The ASVIN Project: a study of electronic and printed veterinary science journals in the UK and Ireland.

PubMed

Davies, Bryn

2002-03-01

ASVIN was a Research Support for Libraries Programme (RSLP) Funded Project, whose principal aim was to develop better co-operation between nine libraries in the veterinary and animal health field. The project examined a number of library-related areas, such as journal archiving, collection development policies, development of a common Z39.50 catalogue interface, grey literature, and printed and electronic journals. This paper examines the latter, whilst also providing a detailed analysis of printed journals held in partner libraries. Comparisons of the nine partner library collections are undertaken with a range of secondary sources, and an ASVIN core list of veterinary journals was developed. It looks at some of the issues relating to e-journals, expressing the benefits and concerns that many librarians are experiencing, such as licensing arrangements, archiving and general management issues.

DMG-α--a computational geometry library for multimolecular systems.

PubMed

Szczelina, Robert; Murzyn, Krzysztof

2014-11-24

The DMG-α library grants researchers in the field of computational biology, chemistry, and biophysics access to an open-sourced, easy to use, and intuitive software for performing fine-grained geometric analysis of molecular systems. The library is capable of computing power diagrams (weighted Voronoi diagrams) in three dimensions with 3D periodic boundary conditions, computing approximate projective 2D Voronoi diagrams on arbitrarily defined surfaces, performing shape properties recognition using α-shape theory and can do exact Solvent Accessible Surface Area (SASA) computation. The software is written mainly as a template-based C++ library for greater performance, but a rich Python interface (pydmga) is provided as a convenient way to manipulate the DMG-α routines. To illustrate possible applications of the DMG-α library, we present results of sample analyses which allowed to determine nontrivial geometric properties of two Escherichia coli-specific lipids as emerging from molecular dynamics simulations of relevant model bilayers.

An Annotated List of Marine Stations Suitable for Field Courses in Carbonate Geology and Tropical Marine Sciences.

ERIC Educational Resources Information Center

Kaplan, Eugene H.

1980-01-01

Listed are field stations in the Caribbean and Florida-Bahamas which are suitable for classes in field geology and tropical marine science. Each field station is described by listing the name of the institution, description of accommodations, library facilities, laboratory facilities, boats, classrooms, motor vehicles, study areas, scuba, and…

Polarizable Force Field for DNA Based on the Classical Drude Oscillator: I. Refinement Using Quantum Mechanical Base Stacking and Conformational Energetics.

PubMed

Lemkul, Justin A; MacKerell, Alexander D

2017-05-09

Empirical force fields seek to relate the configuration of a set of atoms to its energy, thus yielding the forces governing its dynamics, using classical physics rather than more expensive quantum mechanical calculations that are computationally intractable for large systems. Most force fields used to simulate biomolecular systems use fixed atomic partial charges, neglecting the influence of electronic polarization, instead making use of a mean-field approximation that may not be transferable across environments. Recent hardware and software developments make polarizable simulations feasible, and to this end, polarizable force fields represent the next generation of molecular dynamics simulation technology. In this work, we describe the refinement of a polarizable force field for DNA based on the classical Drude oscillator model by targeting quantum mechanical interaction energies and conformational energy profiles of model compounds necessary to build a complete DNA force field. The parametrization strategy employed in the present work seeks to correct weak base stacking in A- and B-DNA and the unwinding of Z-DNA observed in the previous version of the force field, called Drude-2013. Refinement of base nonbonded terms and reparametrization of dihedral terms in the glycosidic linkage, deoxyribofuranose rings, and important backbone torsions resulted in improved agreement with quantum mechanical potential energy surfaces. Notably, we expand on previous efforts by explicitly including Z-DNA conformational energetics in the refinement.

Intrinsically Disordered Protein Specific Force Field CHARMM36IDPSFF.

PubMed

Liu, Hao; Song, Dong; Lu, Hui; Luo, Ray; Chen, Hai-Feng

2018-05-28

Intrinsically disordered proteins (IDPs) are closely related to various human diseases. Because IDPs lack certain tertiary structure, it is difficult to use X-ray and NMR methods to measure their structures. Therefore, molecular dynamics simulation is a useful tool to study the conformer distribution of IDPs. However, most generic protein force fields were found to be insufficient in simulations of IDPs. Here we report our development for the CHARMM community. Our residue-specific IDP force field (CHARMM36IDPSFF) was developed based on the base generic force field with CMAP corrections of for all 20 naturally occurring amino acids. Multiple tests show that the simulated chemical shifts with the newly developed force field are in quantitative agreement with NMR experiment and are more accurate than the base generic force field. Comparison of J-couplings with previous work shows that CHARMM36IDPSFF and its corresponding base generic force field have their own advantages. In addition, CHARMM36IDPSFF simulations also agree with experiment for SAXS profiles and radii of gyration of IDPs. Detailed analysis shows that CHARMM36IDPSFF can sample more diverse and disordered conformers. These findings confirm that the newly developed force field can improve the balance of accuracy and efficiency for the conformer sampling of IDPs. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

How accurately do force fields represent protein side chain ensembles?

PubMed

Petrović, Dušan; Wang, Xue; Strodel, Birgit

2018-05-23

Although the protein backbone is the most fundamental part of the structure, the fine-tuning of side-chain conformations is important for protein function, for example, in protein-protein and protein-ligand interactions, and also in enzyme catalysis. While several benchmarks testing the performance of protein force fields for side chain properties have already been published, they often considered only a few force fields and were not tested against the same experimental observables; hence, they are not directly comparable. In this work, we explore the ability of twelve force fields, which are different flavors of AMBER, CHARMM, OPLS, or GROMOS, to reproduce average rotamer angles and rotamer populations obtained from extensive NMR studies of the 3 J and residual dipolar coupling constants for two small proteins: ubiquitin and GB3. Based on a total of 196 μs sampling time, our results reveal that all force fields identify the correct side chain angles, while the AMBER and CHARMM force fields clearly outperform the OPLS and GROMOS force fields in estimating rotamer populations. The three best force fields for representing the protein side chain dynamics are AMBER 14SB, AMBER 99SB*-ILDN, and CHARMM36. Furthermore, we observe that the side chain ensembles of buried amino acid residues are generally more accurately represented than those of the surface exposed residues. This article is protected by copyright. All rights reserved. © 2018 Wiley Periodicals, Inc.

Full particle simulations of quasi-perpendicular shocks

NASA Astrophysics Data System (ADS)

Lembège, B.

This tutorial-style review is dedicated to the different strategies and constraints used for analysing the dynamics of a collisionless shocks with full particle simulations. Main results obtained with such simulations can be found in published materials (recent references are provided in this text); these will be only quoted herein in order to illustrate a few aspects of these simulations. Thanks to the large improvement of super computers, full particle simulations reveal to be quite helpful for analyzing in details the dynamics of collisionless shocks. The main characteristics of such codes can be shortly reminded as follows: one resolves the full set of Poisson and Maxwell's equations without any approximation. Two approaches are commonly used for resolving this equation's set, more precisely the space derivatives: (i) the finite difference approach and (ii) the use of FFT's (Fast Fourier Transform). Two advantages of approach (ii) are that FFT's are highly optimized in supercomputers libraries, and these allow to separate all fields components into two groups: the longitudinal electrostatic component El (solution of Poisson equation) and the transverse electromagnetic components Et and Bt solutions of the Maxwell's equations (so called "fields pusher"). Such a separation is quite helpful in the post processing stage necessary for the data analysis, as will be explained in the presentation. both ions and electrons populations are treated as individual finite-size particles and suffer the effects of all fields via the Lorentz force, so called "particle pusher", which is applied to each particle. Because of the large number of particles commonly used, the particle pusher represents the most expensive part of the calculations on which most efforts of optimisation needs to be performed (in terms of "vectorisation" or of "parallelism"). Relativistic effects may be included in this force via the use of particle momemtum. Each particle has three velocity components (vx, vy, vz), but may have 1, 2 or 3 space coordinates (x, y, z) according to the dimension of the code of concern.

Clientele Recognition of Library Terms and Concepts Used by Librarians: A Case of an Academic Library in the Philippines

ERIC Educational Resources Information Center

Cana, Mercy B.; Cueto, Quiza Lynn Grace G.; De Guzman, Allan B.; Fuchigami, Kaori B.; Manalo, Leona Rica T.; Yu, Jake Cathleen U.

2005-01-01

Using a 30-item multiple-choice type test, this investigation focused on the ability of college students to recognise terms and concepts used by librarians. A total of 447 respondents representing the fields of Education, Nutrition, Food Technology, Tourism and Hotel and Restaurant Management took part in this investigation. Data were gathered…

Drawing a Crowd: Graphic Novel Events Are Great Ways to Generate Excitement

ERIC Educational Resources Information Center

MacDonald, Heidi

2004-01-01

As graphic novels grow in popularity, with teen readers, libraries are finding the world of comics, manga, and anime a fertile field for inspiring events, as well as a great way to promote libraries to teens in general. These events can range from simple--a reading/signing--to elaborate--workshops, or even a mini convention. All provide a unique…

Exploring the Structure of Library and Information Science Web Space Based on Multivariate Analysis of Social Tags

ERIC Educational Resources Information Center

Joo, Soohyung; Kipp, Margaret E. I.

2015-01-01

Introduction: This study examines the structure of Web space in the field of library and information science using multivariate analysis of social tags from the Website, Delicious.com. A few studies have examined mathematical modelling of tags, mainly examining tagging in terms of tripartite graphs, pattern tracing and descriptive statistics. This…

Indexing in Art and Architecture: An Investigation and Analysis. Report to the Council on Library Resources.

ERIC Educational Resources Information Center

Crouch, Dora; And Others

Funded by the Council on Library Resources, this project surveyed thesauri in the fields of art and architecture to seek out existing projects and analyze their content and form. It found that no comprehensive or standardized thesaurus presently exists for art and architecture; rather individual subjects are tailored to meet the needs of a…

Preparing Pre-Service School Librarians for Science-Focused Collaboration with Pre-Service Elementary Teachers: The Design and Impact of a Cross-Class Assignment

ERIC Educational Resources Information Center

Rawson, Casey H.

2015-01-01

Numerous authors in the library and information science (LIS) field have called for more authentic collaborative experiences for students in school librarian education programs, particularly experiences that partner school library students with pre-service teachers to collaboratively design instruction. The first-iteration, design-based study…

Things that Keep Us up at Night

ERIC Educational Resources Information Center

Valenza, Joyce Kasman; Johnson, Doug

2009-01-01

The library, as we once knew it, may no longer be relevant. And, yet, this is undoubtedly the most exciting time in history to be a librarian. The future of the school library as a relevant and viable institution is largely dependent on librarians and how quickly they respond to change. They worry about their field and their practice. They worry…

Proceedings of the Northumbria International Conference on Performance Measurement in Libraries and Information Services: "Meaningful Measures for Emerging Realities" (4th, Pittsburgh, Pennsylvania, August 12-16, 2001).

ERIC Educational Resources Information Center

Stein, Joan, Ed.; Kyrillidou, Martha, Ed.; Davis, Denise, Ed.

This Fourth Northumbria International Conference on Performance Measurement in Libraries and Information Services centered on the theme of "meaningful measures for emerging realities" and contributors surveyed the field of performance measurement from that perspective. The proceedings begins with seven keynote and invited papers from…

Role Reinvention, Structural Defense, or Resigned Surrender: Institutional Approaches to Technological Change and Reference Librarianship

ERIC Educational Resources Information Center

LeMaistre, Tiffany; Embry, Rebecka L.; Van Zandt, Lindsey L.; Bailey, Diane E.

2012-01-01

In a comparative field study of ten libraries, we show how technological advances in electronic and digital resources have led to an onslaught of technology questions at the reference desk while prompting new and challenging work away from the desk. Libraries in our sample varied in their approaches to dealing with technological change, with…

Digital Libraries with Embedded Values: Combining Insights from LIS and Science and Technology Studies

ERIC Educational Resources Information Center

Fleischmann, Kenneth R.

2007-01-01

In the digital age, libraries are increasingly being augmented or even replaced by information technology (IT), which is often accompanied by implicit assumptions of objectivity and neutrality, yet the field of science and technology studies (STS) has a long history of studying what values are embedded in IT and how they are embedded. This article…

Regional downscaling of temporal resolution in near-surface wind from statistically downscaled Global Climate Models (GCMs) for use in San Francisco Bay coastal flood modeling

NASA Astrophysics Data System (ADS)

O'Neill, A.; Erikson, L. H.; Barnard, P.

2013-12-01

While Global Climate Models (GCMs) provide useful projections of near-surface wind vectors into the 21st century, resolution is not sufficient enough for use in regional wave modeling. Statistically downscaled GCM projections from Multivariate Adaptive Constructed Analogues (MACA) provide daily near-surface winds at an appropriate spatial resolution for wave modeling within San Francisco Bay. Using 30 years (1975-2004) of climatological data from four representative stations around San Francisco Bay, a library of example daily wind conditions for four corresponding over-water sub-regions is constructed. Empirical cumulative distribution functions (ECDFs) of station conditions are compared to MACA GFDL hindcasts to create correction factors, which are then applied to 21st century MACA wind projections. For each projection day, a best match example is identified via least squares error among all stations from the library. The best match's daily variation in velocity components (u/v) is used as an analogue of representative wind variation and is applied at 3-hour increments about the corresponding sub-region's projected u/v values. High temporal resolution reconstructions using this methodology on hindcast MACA fields from 1975-2004 accurately recreate extreme wind values within the San Francisco Bay, and because these extremes in wind forcing are of key importance in wave and subsequent coastal flood modeling, this represents a valuable method of generating near-surface wind vectors for use in coastal flood modeling.

Helping Libraries

ERIC Educational Resources Information Center

Rosenfeld, Esther

2005-01-01

For people who are living in North America, the destruction caused by Hurricanes Katrina and Rita has shown them both the humbling power of natural forces and the fragility of man-made structures. The devastation to the Gulf Coast of the United States has left destruction and damage to schools and colleges and the displacement of 372,000 K-12…

Technical Communications in Engineering and Science: The Practices within a Government Defense Laboratory.

ERIC Educational Resources Information Center

Von Seggern, Marilyn; Jourdain, Janet M.

1996-01-01

A survey of the different technical communications and information-related activities of 305 engineers and scientists from 3 sites of the Philips Laboratory, an Air Force research and development laboratory, found that scientists have a closer affinity for libraries and traditional information sources than do engineers. Eight tables depict survey…

Info Lit 2.0 or Déjà Vu?

ERIC Educational Resources Information Center

Ianuzzi, Patricia Anne

2013-01-01

In 1999, the Association of College and Research Libraries (ACRL) convened a national task force to draft Information Literacy Competency Standards for Higher Education. ACRL has recently launched a revision to those standards. The original standards were influential because they helped advance a national need in higher education at the time: a…

The Metadata Education and Research Information Commons (MERIC): A Collaborative Teaching and Research Initiative

ERIC Educational Resources Information Center

Vellucci, Sherry L.; Hsieh-Yee, Ingrid; Moen, William E.

2007-01-01

The networked environment forced a sea change in Library and Information Science (LIS) education. Most LIS programs offer a mixed-mode of instruction that integrates online learning materials with more traditional classroom pedagogical methods and faculty are now responsible for developing content and digital learning objects. The teaching commons…

Army Sustainment. Volume 42, Issue 6, November-December 2010

DTIC Science & Technology

2010-12-01

movie theaters, internet cafés, and libraries, are...ping points; reception , staging, and onward integration yards; and airfields. Task force base support battalions provide direct sup- port to the units...vehicles. With approximately 3,500 vehicles, trailers , and generators, we needed a maintenance plan customized specifically to match our unique blend

Military Librarians Workshop: A Premier Gathering of Military Librarians, 1957-1999

DTIC Science & Technology

2000-06-01

infamous nocturnal entrepreneurs . 70 Lieutenant Colonel George V. Fagan and the U.S.Air Force Academy provided a literal breath of fresh air to those who...presented the keynote address entitled " Millennial Librarianship: Maintaining the Mix and Avoiding the Hype." Crawford proposed that "the libraries of the

From Standards to Frameworks for IL: How the ACRL Framework Addresses Critiques of the Standards

ERIC Educational Resources Information Center

Foasberg, Nancy M.

2015-01-01

The Association of College and Research Libraries (ACRL) Information Literacy Competency Standards for Higher Education, since their publication in 2000, have drawn criticism for ignoring the social and political aspects of information literacy. The ACRL Information Literacy Competency Standards Task Force responded with the Framework for…

Partnership for a Nation of Learners: Joining Forces, Creating Value

ERIC Educational Resources Information Center

Kulpinski, Dan

2009-01-01

This publication presents in-depth profiles of six high-performing partnerships funded by the Partnership for a Nation of Learners (PNL) and short profiles of the remaining grantees. The partnerships illustrate a range of examples of how museums, libraries, public broadcasters, and other vital community organizations can collaborate to address…

Online Catalog Documentation Task Force: Onscreen Documentation Subgroup. Final Report.

ERIC Educational Resources Information Center

Campbell, John; And Others

This report describes the work of the Onscreen Documentation Subgroup in revising screens for GALIN, the University of Georgia (UGA) Libraries new online system. The responsibilities of the Subgroup were to revise screens from the previous online catalog and to create basic help screens, primarily for the command searching mode. Responsibilities…

Management Analysis of Civil-Military Construction in Iraq and Afghanistan

DTIC Science & Technology

2011-06-01

a movie theater, a library, and a fitness center. While each facility supports the morale of the soldiers, each can be constructed as seperate...CMU... it’s obviously a far better force protection measure than a CHU. There have been a number of people who have been injured in trailers do to

Development, Implementation, and Analysis of an Environmental Simulation Information Reference Library and Archive (ESIRLA)

DTIC Science & Technology

1997-12-01

of the DoD environmental science community to identify cloud modeling and other environmental capabilities that support or could potentially support...benefit of the DoD environmental science community. STC determined the detailed requirements for weather effects products and decision aids for specific Air Force operational electro-optical systems.

Tankering Fuel on U.S. Air Force Transport Aircraft: An Assessment of Cost Savings

DTIC Science & Technology

2015-01-01

2012, Fort Belvoir, Va., undated-c. As of September 29, 2014 : http://www.energy.dla.mil/library/Pages/Publications.aspx Federal Aviation...1978. ———, Water in Aviation Fuel, AC 20-125, November 12, 1985. Fregnani, Guerreiro, José Alexandre Tavares, Carlos Müller, and Anderson Ribeiro

The Trapped Radiation Handbook. Change 4,

DTIC Science & Technology

1977-01-04

DLSE ATT!t Technical Library CommanderAD) COBI /KPD Dat. 1, 12W5 ATTN: Hqs. 14th Aerospace Force (EVN) Space Forecasting Section ATTN: Paul Hason...ATTN: R. P. Caren, D/52-20 ATTNi Hans Wolfhard ATTNI D. C. Fisher, U/52-14 ATTNt Joel Bengston ATTN, Richard G. Johnson, Dept. 52-12 ATTN: Ernest Buer

82. View of specialized maintenance shop in transmitter building no. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

82. View of specialized maintenance shop in transmitter building no. 101, showing technical publications library and equipment logging trays. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

The Impact Analysis of a Mixed Squadron, Containing LCS and Multi-Mission Surface Platforms, on Blue Force Casualties and Mission Effectiveness

DTIC Science & Technology

2008-09-01

Littoral Combat Ships OTH Over-The-Horizon Pd Probability of Detection PGGF Fast Attack Craft – Missile PIM Plan of Intended Movement Pk...Lucas Naval Postgraduate School Monterey, California 2. Dudley Knox Library Naval Postgraduate School Monterey, California 3. CAPT Doug Otte

Evaluative Study of the Neighborhood Information Center Project.

ERIC Educational Resources Information Center

Franklin, Hardy R.; Summers, F. William

The 1972-1974 Neighborhood Information Center (NIC) Project was undertaken in Atlanta, Cleveland, Detroit, Houston, and Queens Borough to demonstrate that urban public libraries could be a vital force in daily living by providing free information and referrals to low income communities, and by adapting in non-traditional ways to meet neighborhood…

Force Field Development from Periodic Density Functional Theory Calculations for Gas Separation Applications Using Metal–Organic Frameworks

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mercado, Rocio; Vlaisavljevich, Bess; Lin, Li -Chiang

We present accurate force fields developed from density functional theory (DFT) calculations with periodic boundary conditions for use in molecular simulations involving M 2(dobdc) (M-MOF-74; dobdc 4– = 2,5-dioxidobenzenedicarboxylate; M = Mg, Mn, Fe, Co, Ni, Zn) and frameworks of similar topology. In these systems, conventional force fields fail to accurately model gas adsorption due to the strongly binding open-metal sites. The DFT-derived force fields predict the adsorption of CO 2, H 2O, and CH 4 inside these frameworks much more accurately than other common force fields. We show that these force fields can also be used for M 2(dobpdc)more » (dobpdc 4– = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate), an extended version of MOF-74, and thus are a promising alternative to common force fields for studying materials similar to MOF-74 for carbon capture applications. Furthermore, it is anticipated that the approach can be applied to other metal–organic framework topologies to obtain force fields for different systems. We have used this force field to study the effect of contaminants such as H 2O and N 2 upon these materials’ performance for the separation of CO 2 from the emissions of natural gas reservoirs and coal-fired power plants. Specifically, mixture adsorption isotherms calculated with these DFT-derived force fields showed a significant reduction in the uptake of many gas components in the presence of even trace amounts of H 2O vapor. The extent to which the various gases are affected by the concentration of H 2O in the reservoir is quantitatively different for the different frameworks and is related to their heats of adsorption. Additionally, significant increases in CO 2 selectivities over CH 4 and N 2 are observed as the temperature of the systems is lowered.« less

Force Field Development from Periodic Density Functional Theory Calculations for Gas Separation Applications Using Metal–Organic Frameworks

DOE PAGES

Mercado, Rocio; Vlaisavljevich, Bess; Lin, Li -Chiang; ...

2016-05-25

We present accurate force fields developed from density functional theory (DFT) calculations with periodic boundary conditions for use in molecular simulations involving M 2(dobdc) (M-MOF-74; dobdc 4– = 2,5-dioxidobenzenedicarboxylate; M = Mg, Mn, Fe, Co, Ni, Zn) and frameworks of similar topology. In these systems, conventional force fields fail to accurately model gas adsorption due to the strongly binding open-metal sites. The DFT-derived force fields predict the adsorption of CO 2, H 2O, and CH 4 inside these frameworks much more accurately than other common force fields. We show that these force fields can also be used for M 2(dobpdc)more » (dobpdc 4– = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate), an extended version of MOF-74, and thus are a promising alternative to common force fields for studying materials similar to MOF-74 for carbon capture applications. Furthermore, it is anticipated that the approach can be applied to other metal–organic framework topologies to obtain force fields for different systems. We have used this force field to study the effect of contaminants such as H 2O and N 2 upon these materials’ performance for the separation of CO 2 from the emissions of natural gas reservoirs and coal-fired power plants. Specifically, mixture adsorption isotherms calculated with these DFT-derived force fields showed a significant reduction in the uptake of many gas components in the presence of even trace amounts of H 2O vapor. The extent to which the various gases are affected by the concentration of H 2O in the reservoir is quantitatively different for the different frameworks and is related to their heats of adsorption. Additionally, significant increases in CO 2 selectivities over CH 4 and N 2 are observed as the temperature of the systems is lowered.« less

An efficient and accurate framework for calculating lattice thermal conductivity of solids: AFLOW—AAPL Automatic Anharmonic Phonon Library

NASA Astrophysics Data System (ADS)

Plata, Jose J.; Nath, Pinku; Usanmaz, Demet; Carrete, Jesús; Toher, Cormac; de Jong, Maarten; Asta, Mark; Fornari, Marco; Nardelli, Marco Buongiorno; Curtarolo, Stefano

2017-10-01

One of the most accurate approaches for calculating lattice thermal conductivity, , is solving the Boltzmann transport equation starting from third-order anharmonic force constants. In addition to the underlying approximations of ab-initio parameterization, two main challenges are associated with this path: high computational costs and lack of automation in the frameworks using this methodology, which affect the discovery rate of novel materials with ad-hoc properties. Here, the Automatic Anharmonic Phonon Library (AAPL) is presented. It efficiently computes interatomic force constants by making effective use of crystal symmetry analysis, it solves the Boltzmann transport equation to obtain , and allows a fully integrated operation with minimum user intervention, a rational addition to the current high-throughput accelerated materials development framework AFLOW. An "experiment vs. theory" study of the approach is shown, comparing accuracy and speed with respect to other available packages, and for materials characterized by strong electron localization and correlation. Combining AAPL with the pseudo-hybrid functional ACBN0 is possible to improve accuracy without increasing computational requirements.

Developing a molecular dynamics force field for both folded and disordered protein states.

PubMed

Robustelli, Paul; Piana, Stefano; Shaw, David E

2018-05-07

Molecular dynamics (MD) simulation is a valuable tool for characterizing the structural dynamics of folded proteins and should be similarly applicable to disordered proteins and proteins with both folded and disordered regions. It has been unclear, however, whether any physical model (force field) used in MD simulations accurately describes both folded and disordered proteins. Here, we select a benchmark set of 21 systems, including folded and disordered proteins, simulate these systems with six state-of-the-art force fields, and compare the results to over 9,000 available experimental data points. We find that none of the tested force fields simultaneously provided accurate descriptions of folded proteins, of the dimensions of disordered proteins, and of the secondary structure propensities of disordered proteins. Guided by simulation results on a subset of our benchmark, however, we modified parameters of one force field, achieving excellent agreement with experiment for disordered proteins, while maintaining state-of-the-art accuracy for folded proteins. The resulting force field, a99SB- disp , should thus greatly expand the range of biological systems amenable to MD simulation. A similar approach could be taken to improve other force fields. Copyright © 2018 the Author(s). Published by PNAS.

Improved side-chain torsion potentials for the Amber ff99SB protein force field

PubMed Central

Lindorff-Larsen, Kresten; Piana, Stefano; Palmo, Kim; Maragakis, Paul; Klepeis, John L; Dror, Ron O; Shaw, David E

2010-01-01

Recent advances in hardware and software have enabled increasingly long molecular dynamics (MD) simulations of biomolecules, exposing certain limitations in the accuracy of the force fields used for such simulations and spurring efforts to refine these force fields. Recent modifications to the Amber and CHARMM protein force fields, for example, have improved the backbone torsion potentials, remedying deficiencies in earlier versions. Here, we further advance simulation accuracy by improving the amino acid side-chain torsion potentials of the Amber ff99SB force field. First, we used simulations of model alpha-helical systems to identify the four residue types whose rotamer distribution differed the most from expectations based on Protein Data Bank statistics. Second, we optimized the side-chain torsion potentials of these residues to match new, high-level quantum-mechanical calculations. Finally, we used microsecond-timescale MD simulations in explicit solvent to validate the resulting force field against a large set of experimental NMR measurements that directly probe side-chain conformations. The new force field, which we have termed Amber ff99SB-ILDN, exhibits considerably better agreement with the NMR data. Proteins 2010. © 2010 Wiley-Liss, Inc. PMID:20408171

Electron diamagnetic effect in a magnetic nozzle on a helicon plasma thruster performance

NASA Astrophysics Data System (ADS)

Takahashi, Kazunori; Lafleur, Trevor; Charles, Christine; Alexander, Peter; Boswell, Rod

2012-10-01

The axial force, which is called thrust sometimes, imparted from a magnetically expanding helicon plasma thruster is directly measured and the results are compared with a two-dimensional fluid theory. The force component solely transmitted to the expanding field is directly measured and identified as an axial force produced by the azimuthal current due to an electron diamagnetic drift and the radial component of the applied magnetic field. In this type of configuration, plasma diffusion in magnetic field affects a spatial profile of the plasma density and the resultant axial force onto the magnetic field. It is observed that the force component onto the magnetic field increases with an increase in the magnetic field strength, simultaneously with an increase in the plasma density downstream of the source exit, which could be due to suppression of the cross field diffusion in the magnetic nozzle.

Three-Dimensional Measurement of the Helicity-Dependent Forces on a Mie Particle.

PubMed

Liu, Lulu; Di Donato, Andrea; Ginis, Vincent; Kheifets, Simon; Amirzhan, Arman; Capasso, Federico

2018-06-01

Recently, it was shown that a Mie particle in an evanescent field ought to experience optical forces that depend on the helicity of the totally internally reflected beam. As yet, a direct measurement of such helicity-dependent forces has been elusive, as the widely differing force magnitudes in the three spatial dimensions place stringent demands on a measurement's sensitivity and range. In this study, we report the simultaneous measurement of all components of this polarization-dependent optical force by using a 3D force spectroscopy technique with femtonewton sensitivity. The vector force fields are compared quantitatively with our theoretical calculations as the polarization state of the incident light is varied and show excellent agreement. By plotting the 3D motion of the Mie particle in response to the switched force field, we offer visual evidence of the effect of spin momentum on the Poynting vector of an evanescent optical field.

Three-Dimensional Measurement of the Helicity-Dependent Forces on a Mie Particle

NASA Astrophysics Data System (ADS)

Liu, Lulu; Di Donato, Andrea; Ginis, Vincent; Kheifets, Simon; Amirzhan, Arman; Capasso, Federico

2018-06-01

Recently, it was shown that a Mie particle in an evanescent field ought to experience optical forces that depend on the helicity of the totally internally reflected beam. As yet, a direct measurement of such helicity-dependent forces has been elusive, as the widely differing force magnitudes in the three spatial dimensions place stringent demands on a measurement's sensitivity and range. In this study, we report the simultaneous measurement of all components of this polarization-dependent optical force by using a 3D force spectroscopy technique with femtonewton sensitivity. The vector force fields are compared quantitatively with our theoretical calculations as the polarization state of the incident light is varied and show excellent agreement. By plotting the 3D motion of the Mie particle in response to the switched force field, we offer visual evidence of the effect of spin momentum on the Poynting vector of an evanescent optical field.

Force fields for describing the solution-phase synthesis of shape-selective metal nanoparticles

NASA Astrophysics Data System (ADS)

Zhou, Ya; Al-Saidi, Wissam; Fichthorn, Kristen

2013-03-01

Polyvinylpyrrolidone (PVP) and polyethylene oxide (PEO) are structure-directing agents that exhibit different performance in the polyol synthesis of Ag nanostructures. The success of these structure-directing agents in selective nanostructure synthesis is often attributed to their selective binding to Ag(100) facets. We use first-principles, density-functional theory (DFT) calculations in a vacuum environment to show that PVP has a stronger preference to bind to Ag(100) than to Ag(111), whereas PEO exhibits much weaker selectivity. To understand the role of solvent in the surface-sensitive binding, we develop classical force fields to describe the interactions of the structure-directing (PVP and PEO) and solvent (ethylene glycol) molecules with various Ag substrates. We parameterize the force fields through force-and-energy matching to DFT results using simulated annealing. We validate the force fields by comparisons to DFT and experimental binding energies. Our force fields reproduce the surface-sensitive binding predicted by DFT calculations. Molecular dynamics simulations based on these force fields can be used to reveal the role of solvent, polymer chain length, and polymer concentration in the selective synthesis of Ag nanostructures.

Magnetodynamic stability of a fluid cylinder under the Lundquist force-free magnetic field

NASA Astrophysics Data System (ADS)

Radwan, Ahmed E.; Halawa, Mohamed A.

1990-04-01

The magnetodynamic (in)stability of a conducting fluid cylinder subject to the capillarity and electromagnetic forces has been developed. The cylinder is pervaded by a uniform magnetic field but embedded in the Lundquist force-free varying field that allows for flowing a current surrounding the fluid. A general eigenvalue relation is derived based on a study of the equilibrium and perturbed states. The stability criterion is discussed analytically in general terms. The surface tension is destabilizing for small axisymmetric mode and stable for all others. The principle of the exchange of stability is allowed for the present problem due to the non-uniform behavior of the force-free field. Each of the axial and transverse force-free fields separately exerts a stabilizing influence in the most dangerous mode but the combined contribution of them is strongly destabilizing. Whether the model is acted upon the electromagnetic force (with the Lundquist field) the stability restrictions or/and the capillarity force are identified. Several reported works can be recovered as limiting cases with appropriate simplifications.

ModFossa: A library for modeling ion channels using Python.

PubMed

Ferneyhough, Gareth B; Thibealut, Corey M; Dascalu, Sergiu M; Harris, Frederick C

2016-06-01

The creation and simulation of ion channel models using continuous-time Markov processes is a powerful and well-used tool in the field of electrophysiology and ion channel research. While several software packages exist for the purpose of ion channel modeling, most are GUI based, and none are available as a Python library. In an attempt to provide an easy-to-use, yet powerful Markov model-based ion channel simulator, we have developed ModFossa, a Python library supporting easy model creation and stimulus definition, complete with a fast numerical solver, and attractive vector graphics plotting.

Generation of human Fab antibody libraries: PCR amplification and assembly of light- and heavy-chain coding sequences.

PubMed

Andris-Widhopf, Jennifer; Steinberger, Peter; Fuller, Roberta; Rader, Christoph; Barbas, Carlos F

2011-09-01

The development of therapeutic antibodies for use in the treatment of human diseases has long been a goal for many researchers in the antibody field. One way to obtain these antibodies is through phage-display libraries constructed from human lymphocytes. This protocol describes the construction of human Fab (fragment antigen binding) antibody libraries. In this method, the individual rearranged heavy- and light-chain variable regions are amplified separately and are linked through a series of overlap polymerase chain reaction (PCR) steps to give the final Fab products that are used for cloning.

Validation and Application of the ReaxFF Reactive Force Field to Hydrocarbon Oxidation Kinetics

DTIC Science & Technology

2016-06-23

AFRL-AFOSR-VA-TR-2016-0278 Validation and application of the ReaxFF reactive force field to hydrocarbon oxidation kinetics Adrianus Van Duin...application of the ReaxFF reactive force field to hydrocarbon oxidation kinetics 5a.  CONTRACT NUMBER 5b.  GRANT NUMBER FA9550-14-1-0355 5c.  PROGRAM...Chenoweth Dec14 Validation and application of the ReaxFF reactive force field to hydrocarbon oxidation kinetics DISTRIBUTION A: Distribution approved for

Surface structure and stability of partially hydroxylated silica surfaces

DOE PAGES

Rimsza, J. M.; Jones, R. E.; Criscenti, L. J.

2017-04-04

Surface energies of silicates influence crack propagation during brittle fracture and decrease with surface relaxation caused by annealing and hydroxylation. Molecular-level simulations are particularly suited for the investigation of surface processes. In this work, classical MD simulations of silica surfaces are performed with two force fields (ClayFF and ReaxFF) to investigate the effect of force field reactivity on surface structure and energy as a function of surface hydroxylation. An unhydroxylated fracture surface energy of 5.1 J/m 2 is calculated with the ClayFF force field, and 2.0 J/m 2 is calculated for the ReaxFF force field. The ClayFF surface energies aremore » consistent with the experimental results from double cantilever beam fracture tests (4.5 J/m 2), whereas ReaxFF underestimated these surface energies. Surface relaxation via annealing and hydroxylation was performed by creating a low-energy equilibrium surface. Annealing condensed neighboring siloxane bonds increased the surface connectivity, and decreased the surface energies by 0.2 J/m 2 for ClayFF and 0.8 J/m 2 for ReaxFF. Posthydroxylation surface energies decreased further to 4.6 J/m 2 with the ClayFF force field and to 0.2 J/m 2 with the ReaxFF force field. Experimental equilibrium surface energies are ~0.35 J/m 2, consistent with the ReaxFF force field. Although neither force field was capable of replicating both the fracture and equilibrium surface energies reported from experiment, each was consistent with one of these conditions. Furthermore, future computational investigations that rely on accurate surface energy values should consider the surface state of the system and select the appropriate force field.« less

Force-field parameters of the Psi and Phi around glycosidic bonds to oxygen and sulfur atoms.

PubMed

Saito, Minoru; Okazaki, Isao

2009-12-01

The Psi and Phi torsion angles around glycosidic bonds in a glycoside chain are the most important determinants of the conformation of a glycoside chain. We determined force-field parameters for Psi and Phi torsion angles around a glycosidic bond bridged by a sulfur atom, as well as a bond bridged by an oxygen atom as a preparation for the next study, i.e., molecular dynamics free energy calculations for protein-sugar and protein-inhibitor complexes. First, we extracted the Psi or Phi torsion energy component from a quantum mechanics (QM) total energy by subtracting all the molecular mechanics (MM) force-field components except for the Psi or Phi torsion angle. The Psi and Phi energy components extracted (hereafter called "the remaining energy components") were calculated for simple sugar models and plotted as functions of the Psi and Phi angles. The remaining energy component curves of Psi and Phi were well represented by the torsion force-field functions consisting of four and three cosine functions, respectively. To confirm the reliability of the force-field parameters and to confirm its compatibility with other force-fields, we calculated adiabatic potential curves as functions of Psi and Phi for the model glycosides by adopting the Psi and Phi force-field parameters obtained and by energetically optimizing other degrees of freedom. The MM potential energy curves obtained for Psi and Phi well represented the QM adiabatic curves and also these curves' differences with regard to the glycosidic oxygen and sulfur atoms. Our Psi and Phi force-fields of glycosidic oxygen gave MM potential energy curves that more closely represented the respective QM curves than did those of the recently developed GLYCAM force-field. (c) 2009 Wiley Periodicals, Inc.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rimsza, J. M.; Jones, R. E.; Criscenti, L. J.

Surface energies of silicates influence crack propagation during brittle fracture and decrease with surface relaxation caused by annealing and hydroxylation. Molecular-level simulations are particularly suited for the investigation of surface processes. In this work, classical MD simulations of silica surfaces are performed with two force fields (ClayFF and ReaxFF) to investigate the effect of force field reactivity on surface structure and energy as a function of surface hydroxylation. An unhydroxylated fracture surface energy of 5.1 J/m 2 is calculated with the ClayFF force field, and 2.0 J/m 2 is calculated for the ReaxFF force field. The ClayFF surface energies aremore » consistent with the experimental results from double cantilever beam fracture tests (4.5 J/m 2), whereas ReaxFF underestimated these surface energies. Surface relaxation via annealing and hydroxylation was performed by creating a low-energy equilibrium surface. Annealing condensed neighboring siloxane bonds increased the surface connectivity, and decreased the surface energies by 0.2 J/m 2 for ClayFF and 0.8 J/m 2 for ReaxFF. Posthydroxylation surface energies decreased further to 4.6 J/m 2 with the ClayFF force field and to 0.2 J/m 2 with the ReaxFF force field. Experimental equilibrium surface energies are ~0.35 J/m 2, consistent with the ReaxFF force field. Although neither force field was capable of replicating both the fracture and equilibrium surface energies reported from experiment, each was consistent with one of these conditions. Furthermore, future computational investigations that rely on accurate surface energy values should consider the surface state of the system and select the appropriate force field.« less

Dissolution study of active pharmaceutical ingredients using molecular dynamics simulations with classical force fields

NASA Astrophysics Data System (ADS)

Greiner, Maximilian; Elts, Ekaterina; Schneider, Julian; Reuter, Karsten; Briesen, Heiko

2014-11-01

The CHARMM, general Amber and OPLS force fields are evaluated for their suitability in simulating the molecular dynamics of the dissolution of the hydrophobic, small-molecule active pharmaceutical ingredients aspirin, ibuprofen, and paracetamol in aqueous media. The force fields are evaluated by comparison with quantum chemical simulations or experimental references on the basis of the following capabilities: accurately representing intra- and intermolecular interactions, appropriately reproducing crystal lattice parameters, adequately describing thermodynamic properties, and the qualitative description of the dissolution behavior. To make this approach easily accessible for evaluating the dissolution properties of novel drug candidates in the early stage of drug development, the force field parameter files are generated using online resources such as the SWISS PARAM servers, and the software packages ACPYPE and Maestro. All force fields are found to reproduce the intermolecular interactions with a reasonable degree of accuracy, with the general Amber and CHARMM force fields showing the best agreement with quantum mechanical calculations. A stable crystal bulk structure is obtained for all model substances, except for ibuprofen, where the reproductions of the lattice parameters and observed crystal stability are considerably poor for all force fields. The heat of solution used to evaluate the solid-to-solution phase transitions is found to be in qualitative agreement with the experimental data for all combinations tested, with the results being quantitatively optimum for the general Amber and CHARMM force fields. For aspirin and paracetamol, stable crystal-water interfaces were obtained. The (100), (110), (011) and (001) interfaces of aspirin or paracetamol and water were simulated for each force field for 30 ns. Although generally expected as a rare event, in some of the simulations, dissolution is observed at 310 K and ambient pressure conditions.

Mutations of Electrons as Constituents of Hadrons

NASA Astrophysics Data System (ADS)

Driscoll, R. B.

1997-04-01

Conjecture (C) 1: Coulomb-charged constituents of electron (e) are attracted to its barycentre by lepto-strong force F=K/r^2+f; f is stably perturbative for r < the "radius" of e. An exterior magnetic field (MF) with gradient (G) secularly perturbs the eccentricities but not the energies of the constituents' orbits, changing the spin (s) and magnetic moment (μ) of e. (C) 2: F coheres two or more e's dynamically with r approximately equal to the "radius" of e. The resulting MF and G at each e oscillate. Stable values of s and μ result for each e which differs from the atomic values. Binding energies change the masses of the e's. A hadron results. (C) 3: An e similarly may bind to a proton to form a Rutherford- Santilli neutron. The proton is negligibly mutated.(References: H. Dehmelt, Science 247, 539 (1990); T.E. Phipps, Jr., Heretical Verities (Classic Non-fiction Library, Urbana, 1986); R.M. Santilli, Hadronic Mechanics (Ukrainian Academy of Sciences, Kiev, 1995 and 1996), 3 volumes.)

The effect of power-law body forces on a thermally driven flow between concentric rotating spheres

NASA Technical Reports Server (NTRS)

Macaraeg, M. G.

1986-01-01

A numerical study is conducted to determine the effect of power-law body forces on a thermally-driven axisymmetric flow field confined between concentric co-rotating spheres. This study is motivated by Spacelab geophysical fluid-flow experiments, which use an electrostatic force on a dielectric fluid to simulate gravity; this force exhibits a (1/r)sup 5 distribution. Meridional velocity is found to increase when the electrostatic body force is imposed, relative to when the body force is uniform. Correlation among flow fields with uniform, inverse-square, and inverse-quintic force fields is obtained using a modified Grashof number.

The effect of power law body forces on a thermally-driven flow between concentric rotating spheres

NASA Technical Reports Server (NTRS)

Macaraeg, M. G.

1985-01-01

A numerical study is conducted to determine the effect of power-law body forces on a thermally-driven axisymmetric flow field confined between concentric co-rotating spheres. This study is motivated by Spacelab geophysical fluid-flow experiments, which use an electrostatic force on a dielectric fluid to simulate gravity; this force exhibits a (1/r)sup 5 distribution. Meridional velocity is found to increase when the electrostatic body force is imposed, relative to when the body force is uniform. Correlation among flow fields with uniform, inverse-square, and inverse-quintic force fields is obtained using a modified Grashof number.

The Electromotive Force in Different Reference Frames

NASA Astrophysics Data System (ADS)

Adler, Charles L.

2018-05-01

The electromotive force (EMF) is the work per unit charge around a wire loop caused by a time-varying magnetic flux threading the loop. It is due to a force moving the charges around the loop. This is true whether the change in flux is due to the wire loop being stationary and the field changing in time, or the loop moving through a spatially varying field. In the first case, we say that the time-varying magnetic field induces an electric field that provides the force; in the second, we say that the force is due to the magnetic field acting on the charges in the moving loop. The theory of relativity states that both viewpoints must be equivalent, but it is sometimes difficult to harmonize them.

Evolution of phage display technology: from discovery to application.

PubMed

Rahbarnia, Leila; Farajnia, Safar; Babaei, Hossein; Majidi, Jafar; Veisi, Kamal; Ahmadzadeh, Vahideh; Akbari, Bahman

2017-03-01

Phage display technology as a selection-based system is an attractive method for evolution of new biological drugs. Unique ability of phage libraries for displaying proteins on bacteriophage surfaces enable them to make a major contribution in diverse fields of researches related to the diagnosis and therapy of diseases. One of the great challenges facing researchers is the modification of phage display technology and the development of new applications. This article reviews the molecular basis of phage display library, and summarizes the novel and specific applications of this technique in the field of biological drugs development including therapeutic antibodies, peptides, vaccines, and catalytic antibodies.

Structural and dynamic properties of liquid tin from a new modified embedded-atom method force field

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vella, Joseph R.; Chen, Mohan; Stillinger, Frank H.

We developed a new modified embedded-atom method (MEAM) force field for liquid tin. Starting from the Ravelo and Baskes force field [Phys. Rev. Lett. 79, 2482 (1997)], the parameters are adjusted using a simulated annealing optimization procedure in order to obtain better agreement with liquid-phase data. The predictive capabilities of the new model and the Ravelo and Baskes force field are evaluated using molecular dynamics by comparing to a wide range of first-principles and experimental data. The quantities studied include crystal properties (cohesive energy, bulk modulus, equilibrium density, and lattice constant of various crystal structures), melting temperature, liquid structure, liquidmore » density, self-diffusivity, viscosity, and vapor-liquid surface tension. We show that although the Ravelo and Baskes force field generally gives better agreement with the properties related to the solid phases of tin, the new MEAM force field gives better agreement with liquid tin properties.« less

Optimization of classical nonpolarizable force fields for OH(-) and H3O(+).

PubMed

Bonthuis, Douwe Jan; Mamatkulov, Shavkat I; Netz, Roland R

2016-03-14

We optimize force fields for H3O(+) and OH(-) that reproduce the experimental solvation free energies and the activities of H3O(+) Cl(-) and Na(+) OH(-) solutions up to concentrations of 1.5 mol/l. The force fields are optimized with respect to the partial charge on the hydrogen atoms and the Lennard-Jones parameters of the oxygen atoms. Remarkably, the partial charge on the hydrogen atom of the optimized H3O(+) force field is 0.8 ± 0.1|e|--significantly higher than the value typically used for nonpolarizable water models and H3O(+) force fields. In contrast, the optimal partial charge on the hydrogen atom of OH(-) turns out to be zero. Standard combination rules can be used for H3O(+) Cl(-) solutions, while for Na(+) OH(-) solutions, we need to significantly increase the effective anion-cation Lennard-Jones radius. While highlighting the importance of intramolecular electrostatics, our results show that it is possible to generate thermodynamically consistent force fields without using atomic polarizability.

Bespoke optical springs and passive force clamps from shaped dielectric particles

NASA Astrophysics Data System (ADS)

Simpson, S. H.; Phillips, D. B.; Carberry, D. M.; Hanna, S.

2013-09-01

By moulding optical fields, holographic optical tweezers are able to generate structured force fields with magnitudes and length scales of great utility for experiments in soft matter and biological physics. It has recently been noted that optically induced force fields are determined not only by the incident optical field, but by the shape and composition of the particles involved [Gluckstad J. Optical manipulation: sculpting the object. Nat Photonics 2011;5:7-8]. Indeed, there are desirable but simple attributes of a force field, such as orientational control, that cannot be introduced by sculpting optical fields alone. With this insight in mind, we show, theoretically, how relationships between force and displacement can be controlled by optimizing particle shapes. We exhibit a constant force optical spring, made from a tapered microrod and discuss methods by which it could be fabricated. In addition, we investigate the optical analogue of streamlining, and show how objects can be shaped so as to reduce the effects of radiation pressure, and hence switch from non-trapping to trapping regimes.

Structural and dynamic properties of liquid tin from a new modified embedded-atom method force field

NASA Astrophysics Data System (ADS)

Vella, Joseph R.; Chen, Mohan; Stillinger, Frank H.; Carter, Emily A.; Debenedetti, Pablo G.; Panagiotopoulos, Athanassios Z.

2017-02-01

A new modified embedded-atom method (MEAM) force field is developed for liquid tin. Starting from the Ravelo and Baskes force field [Phys. Rev. Lett. 79, 2482 (1997), 10.1103/PhysRevLett.79.2482], the parameters are adjusted using a simulated annealing optimization procedure in order to obtain better agreement with liquid-phase data. The predictive capabilities of the new model and the Ravelo and Baskes force field are evaluated using molecular dynamics by comparing to a wide range of first-principles and experimental data. The quantities studied include crystal properties (cohesive energy, bulk modulus, equilibrium density, and lattice constant of various crystal structures), melting temperature, liquid structure, liquid density, self-diffusivity, viscosity, and vapor-liquid surface tension. It is shown that although the Ravelo and Baskes force field generally gives better agreement with the properties related to the solid phases of tin, the new MEAM force field gives better agreement with liquid tin properties.

Opening mechanism of adenylate kinase can vary according to selected molecular dynamics force field

NASA Astrophysics Data System (ADS)

Unan, Hulya; Yildirim, Ahmet; Tekpinar, Mustafa

2015-07-01

Adenylate kinase is a widely used test case for many conformational transition studies. It performs a large conformational transition between closed and open conformations while performing its catalytic function. To understand conformational transition mechanism and impact of force field choice on E. Coli adenylate kinase, we performed all-atom explicit solvent classical molecular dynamics simulations starting from the closed conformation with four commonly used force fields, namely, Amber99, Charmm27, Gromos53a6, Opls-aa. We carried out 40 simulations, each one 200 ns. We analyzed completely 12 of them that show full conformational transition from the closed state to the open one. Our study shows that different force fields can have a bias toward different transition pathways. Transition time scales, frequency of conformational transitions, order of domain motions and free energy landscapes of each force field may also vary. In general, Amber99 and Charmm27 behave similarly while Gromos53a6 results have a resemblance to the Opls-aa force field results.

Structural and dynamic properties of liquid tin from a new modified embedded-atom method force field

DOE PAGES

Vella, Joseph R.; Chen, Mohan; Stillinger, Frank H.; ...

2017-02-01

We developed a new modified embedded-atom method (MEAM) force field for liquid tin. Starting from the Ravelo and Baskes force field [Phys. Rev. Lett. 79, 2482 (1997)], the parameters are adjusted using a simulated annealing optimization procedure in order to obtain better agreement with liquid-phase data. The predictive capabilities of the new model and the Ravelo and Baskes force field are evaluated using molecular dynamics by comparing to a wide range of first-principles and experimental data. The quantities studied include crystal properties (cohesive energy, bulk modulus, equilibrium density, and lattice constant of various crystal structures), melting temperature, liquid structure, liquidmore » density, self-diffusivity, viscosity, and vapor-liquid surface tension. We show that although the Ravelo and Baskes force field generally gives better agreement with the properties related to the solid phases of tin, the new MEAM force field gives better agreement with liquid tin properties.« less

DNA Polymorphism: A Comparison of Force Fields for Nucleic Acids

PubMed Central

Reddy, Swarnalatha Y.; Leclerc, Fabrice; Karplus, Martin

2003-01-01

The improvements of the force fields and the more accurate treatment of long-range interactions are providing more reliable molecular dynamics simulations of nucleic acids. The abilities of certain nucleic acid force fields to represent the structural and conformational properties of nucleic acids in solution are compared. The force fields are AMBER 4.1, BMS, CHARMM22, and CHARMM27; the comparison of the latter two is the primary focus of this paper. The performance of each force field is evaluated first on its ability to reproduce the B-DNA decamer d(CGATTAATCG)2 in solution with simulations in which the long-range electrostatics were treated by the particle mesh Ewald method; the crystal structure determined by Quintana et al. (1992) is used as the starting point for all simulations. A detailed analysis of the structural and solvation properties shows how well the different force fields can reproduce sequence-specific features. The results are compared with data from experimental and previous theoretical studies. PMID:12609851

Lipid14: The Amber Lipid Force Field

PubMed Central

2015-01-01

The AMBER lipid force field has been updated to create Lipid14, allowing tensionless simulation of a number of lipid types with the AMBER MD package. The modular nature of this force field allows numerous combinations of head and tail groups to create different lipid types, enabling the easy insertion of new lipid species. The Lennard-Jones and torsion parameters of both the head and tail groups have been revised and updated partial charges calculated. The force field has been validated by simulating bilayers of six different lipid types for a total of 0.5 μs each without applying a surface tension; with favorable comparison to experiment for properties such as area per lipid, volume per lipid, bilayer thickness, NMR order parameters, scattering data, and lipid lateral diffusion. As the derivation of this force field is consistent with the AMBER development philosophy, Lipid14 is compatible with the AMBER protein, nucleic acid, carbohydrate, and small molecule force fields. PMID:24803855

Articles Published and Downloaded by Public Health Scientists: Analysis of Data From the CDC Public Health Library, 2011-2013.

PubMed

Iskander, John; Bang, Gail; Stupp, Emma; Connick, Kathy; Gomez, Onnalee; Gidudu, Jane

2016-01-01

To describe scientific information usage and publication patterns of the Centers for Disease Control and Prevention (CDC) Public Health Library and Information Center patrons. Administratively collected patron usage data and aggregate data on CDC-authored publications from the CDC Library for 3 consecutive years were analyzed. The CDC Public Health Library and Information Center, which serves CDC employees nationally and internationally. Internal patrons and external users of the CDC Library. Three-year trends in full-text article publication and downloads including most common journals used for each purpose, systematic literature searches requested and completed, and subscriptions to a weekly public health current literature awareness service. From 2011 to 2013, CDC scientists published a total of 7718 articles in the peer-reviewed literature. During the same period, article downloads from the CDC Library increased 25% to more than 1.1 million, completed requests for reviews of the scientific literature increased by 34%, and electronic subscriptions to literature compilation services increased by 23%. CDC's scientific output and information use via the CDC Library are both increasing. Researchers and field staff are making greater use of literature review services and other customized information content delivery. Virtual public health library access is an increasingly important resource for the scientific practice of public health.

A Student of History: Perspectives on the Contributions of Estelle Brodman

PubMed Central

McClure, Lucretia W.

2008-01-01

Purpose: This paper is a reflection on the contributions of Estelle Brodman, PhD, as a historian through her publications and activities in the areas of medical history and history of medical librarianship. Methods: The publication record of Dr. Brodman was reviewed to identify the resources most relevant to the history of medicine and history of medical librarianship. Brief Description: As a historian, Dr. Brodman used manuscript collections to carry out original research. Publications resulting from her research and historical activities influenced her library colleagues to embrace history and brought new information to historians, scholars, and students. Dr. Brodman was the driving force behind the development of the Medical Library Association's oral history program. PMID:18654654

Lorentz Body Force Induced by Traveling Magnetic Fields

NASA Technical Reports Server (NTRS)

Volz, M. P.; Mazuruk, K.

2003-01-01

The Lorentz force induced by a traveling magnetic field (TMF) in a cylindrical container has been calculated. The force can be used to control flow in dectrically conducting melts and the direction of the magnetic field and resulting flow can be reversed. A TMF can be used to partially cancel flow driven by buoyancy. The penetration of the field into the cylinder decreases as the frequency increases, and there exists an optimal value of frequency for which the resulting force is a maximum. Expressions for the Lorentz force in the limiting cases of low frequency and infinite cylinder are also given and compared to the numerical calculations.

ff14ipq: A Self-Consistent Force Field for Condensed-Phase Simulations of Proteins

PubMed Central

2015-01-01

We present the ff14ipq force field, implementing the previously published IPolQ charge set for simulations of complete proteins. Minor modifications to the charge derivation scheme and van der Waals interactions between polar atoms are introduced. Torsion parameters are developed through a generational learning approach, based on gas-phase MP2/cc-pVTZ single-point energies computed of structures optimized by the force field itself rather than the quantum benchmark. In this manner, we sacrifice information about the true quantum minima in order to ensure that the force field maintains optimal agreement with the MP2/cc-pVTZ benchmark for the ensembles it will actually produce in simulations. A means of making the gas-phase torsion parameters compatible with solution-phase IPolQ charges is presented. The ff14ipq model is an alternative to ff99SB and other Amber force fields for protein simulations in programs that accommodate pair-specific Lennard–Jones combining rules. The force field gives strong performance on α-helical and β-sheet oligopeptides as well as globular proteins over microsecond time scale simulations, although it has not yet been tested in conjunction with lipid and nucleic acid models. We show how our choices in parameter development influence the resulting force field and how other choices that may have appeared reasonable would actually have led to poorer results. The tools we developed may also aid in the development of future fixed-charge and even polarizable biomolecular force fields. PMID:25328495

Thermodynamic properties for applications in chemical industry via classical force fields.

PubMed

Guevara-Carrion, Gabriela; Hasse, Hans; Vrabec, Jadran

2012-01-01

Thermodynamic properties of fluids are of key importance for the chemical industry. Presently, the fluid property models used in process design and optimization are mostly equations of state or G (E) models, which are parameterized using experimental data. Molecular modeling and simulation based on classical force fields is a promising alternative route, which in many cases reasonably complements the well established methods. This chapter gives an introduction to the state-of-the-art in this field regarding molecular models, simulation methods, and tools. Attention is given to the way modeling and simulation on the scale of molecular force fields interact with other scales, which is mainly by parameter inheritance. Parameters for molecular force fields are determined both bottom-up from quantum chemistry and top-down from experimental data. Commonly used functional forms for describing the intra- and intermolecular interactions are presented. Several approaches for ab initio to empirical force field parameterization are discussed. Some transferable force field families, which are frequently used in chemical engineering applications, are described. Furthermore, some examples of force fields that were parameterized for specific molecules are given. Molecular dynamics and Monte Carlo methods for the calculation of transport properties and vapor-liquid equilibria are introduced. Two case studies are presented. First, using liquid ammonia as an example, the capabilities of semi-empirical force fields, parameterized on the basis of quantum chemical information and experimental data, are discussed with respect to thermodynamic properties that are relevant for the chemical industry. Second, the ability of molecular simulation methods to describe accurately vapor-liquid equilibrium properties of binary mixtures containing CO(2) is shown.

EOSPEC: a complementary toolbox for MODTRAN calculations

NASA Astrophysics Data System (ADS)

Dion, Denis

2016-09-01

For more than a decade, Defence Research and Development Canada (DRDC) has been developing a Library of computer models for the calculations of atmospheric effects on EO-IR sensor performances. The Library, called EOSPEC-LIB (EO-IR Sensor PErformance Computation LIBrary) has been designed as a complement to MODTRAN, the radiative transfer code developed by the Air Force Research Laboratory and Spectral Science Inc. in the USA. The Library comprises modules for the definition of the atmospheric conditions, including aerosols, and provides modules for the calculation of turbulence and fine refraction effects. SMART (Suite for Multi-resolution Atmospheric Radiative Transfer), a key component of EOSPEC, allows one to perform fast computations of transmittances and radiances using MODTRAN through a wide-band correlated-k computational approach. In its most recent version, EOSPEC includes a MODTRAN toolbox whose functions help generate in a format compatible to MODTRAN 5 and 6 atmospheric and aerosol profiles, user-defined refracted optical paths and inputs for configuring the MODTRAN sea radiance (BRDF) model. The paper gives an overall description of the EOSPEC features and capacities. EOSPEC provides augmented capabilities for computations in the lower atmosphere, and for computations in maritime environments.

[Scientific information, medical education and health policies: the Pan-American Health Organization and the creation of the Regional Library of Medicine--Bireme].

PubMed

Pires-Alves, Fernando

2008-01-01

This article examines the creation and the first years of functioning of the Regional Library of Medicine (Biblioteca Regional de Medicina--Bireme--PAHO), today Latin-American Center for Information in Health Sciences, during 1963-1982. In the course of this analysis, Bireme is being characterized as both an apparatus and an arena for negotiation present in the most general processes of development expressed in international cooperation, information in science and technology, health policies and in the movement for expansion and reform of medical teaching. The narrative has as initial landmark the conception of a regional library of medicine for Latin America according to a model proposed by the National Library of Medicine. The article qualifies the first years of Bireme's existence as the history of the reception of this model, a trajectory that reflected the criticism of that time against the way the health care services were organized and their human resources were educated. Finally, beginning in 1976, a new model resulted in a real modification of Bireme's programmatic agenda, implying in very distinct contributions for the functioning of the regime of information in health sciences in force in Brazil and Latin America.

Archimedes' principle for characterisation of recombinant whole cell biocatalysts.

PubMed

Schmitt, Steven; Walser, Marcel; Rehmann, Michael; Oesterle, Sabine; Panke, Sven; Held, Martin

2018-02-14

The ability of whole cells to catalyse multistep reactions, often yielding synthetically demanding compounds later used by industrial biotech or pharma, makes them an indispensable tool of synthetic chemistry. The complex reaction network employed by cellular catalysts and the still only moderate predictive power of modelling approaches leaves this tool challenging to engineer. Frequently, large libraries of semi-rationally generated variants are sampled in high-throughput mode in order to then identify improved catalysts. We present a method for space- and time-efficient processing of very large libraries (10 7 ) of recombinant cellular catalysts, in which the phenotypic characterisation and the isolation of positive variants for the entire library is done within one minute in a single, highly parallelized operation. Specifically, product formation in nanolitre-sized cultivation vessels is sensed and translated into the formation of catalase as a reporter protein. Exposure to hydrogen peroxide leads to oxygen gas formation and thus to a density shift of the cultivation vessel. Exploiting Archimedes' principle, this density shift and the resulting upward buoyancy force can be used for batch-wise library sampling. We demonstrate the potential of the method for both, screening and selection protocols, and envision a wide applicability of the system for biosensor-based assays.

Evolution of Scholarly Publishing and Library Services in Astronomy Its Impact, Challenges, and Opportunities

NASA Astrophysics Data System (ADS)

Wesley, Hema; Sheshadri, Geetha

2016-10-01

Scholarly publishing and its procedures have evolved rapidly, forcefully, and incredibly. Technical advances in the production and promotion of science content have dramatically augmented the visibility and reach, deepened the impact and intensified the thrust of science journal content. These changes range from checking text on perforated tapes to pit stop; from hot metal types to CTP; and from Gutenberg to colour digital printers. Intrinsic and inextricable to this revolutionary aspect of evolution in scholarly publishing is the evolution of library services in astronomy which catapulted library resources from preprints on shelves to customised digital repositories and from communicating observational data through postal telegrams to Tablets. What impact does this unique blend of revolutionary advances have on science and society, what are the consequent challenges, and what are the opportunities that can metamorphose from challenges inherent in the power and potential of the `published word'? The perspectives expressed in this paper stem from learning experiences of the authors at the Indian Academy of Sciences, publishers of ten science journals including the Journal of Astrophysics and Astronomy, and at the Raman Research Institute Library (in which Astronomy is one of the core subjects for research)

The Central American Network for Disaster and Health Information

PubMed Central

Arnesen, Stacey J.; Cid, Victor H.; Scott, John C.; Perez, Ricardo; Zervaas, Dave

2007-01-01

Purpose: This paper describes an international outreach program to support rebuilding Central America's health information infrastructure after several natural disasters in the region, including Hurricane Mitch in 1998 and two major earthquakes in 2001. Setting, Participants, and Description: The National Library of Medicine joined forces with the Pan American Health Organization/World Health Organization, the United Nations International Strategy for Disaster Reduction, and the Regional Center of Disaster Information for Latin America and the Caribbean (CRID) to strengthen libraries and information centers in Central America and improve the availability of and access to health and disaster information in the region by developing the Central American Network for Disaster and Health Information (CANDHI). Through CRID, the program created ten disaster health information centers in medical libraries and disaster-related organizations in six countries. Results/Outcome: This project served as a catalyst for the modernization of several medical libraries in Central America. The resulting CANDHI provides much needed electronic access to public health “gray literature” on disasters, as well as access to numerous health information resources. CANDHI members assist their institutions and countries in a variety of disaster preparedness activities through collecting and disseminating information. PMID:17641767

National Library of Medicine Classification: A Scheme for the Shelf Arrangement of Books in a Field of Medicine and Its Related Sciences. Fourth Edition.

ERIC Educational Resources Information Center

Wiggins, Emilie, Ed.

Outlined is the National Library of Medicine classification system for medicine and related sciences. In this system each preclinical science, such as human anatomy, biochemistry or pathology, and each medical subject, such as infectious diseases or pediatrics, receives a two-letter classification. Under each of these main headings numbered minor…

IFLA General Conference, 1986. Pre-Session Seminar on Special Libraries and Their Role in National Development. Papers.

ERIC Educational Resources Information Center

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

A seminar on special libraries and their role in national development was held as a pre-session before the IFLA conference in 1986. Papers presented include: (1) "On the Problem of Document Delivery in the Field of Science and Technology in Asia" (Daxun He, People's Republic of China); (2) "The Planning and Development of Special…

Role Expectations for School Library Media Specialists: A Collective Case Study of Two Medium-Sized Wisconsin School Districts

ERIC Educational Resources Information Center

Lea, Mark Keith

2013-01-01

During this period of radical change in the field of information technology there is evidence of confusion about the role of school library media specialists in the implementation, and the administration of emerging information technologies in Wisconsin public schools. This study sought to answer the question what is the role of the school library…

Planning a Library Leadership Retreat on the Cheap: Case Study and Analysis

ERIC Educational Resources Information Center

Brower, Stewart

2016-01-01

Staying ahead of the pitch: an old baseball metaphor that means to anticipate where the ball is going to go so that the batter can score a hit. But to anticipate changes in a field as robust and challenging as information sciences, reflection and contemplation are often key to good planning. With simple day-to-day management of libraries already…

The Implications of a Decade of Diversity-Related Doctoral Dissertations (2000-2009) in LIS: Supporting Inclusive Library Practices

ERIC Educational Resources Information Center

Subramaniam, Mega M.; Rodriguez-Mori, Howard; Jaeger, Paul T.; Hill, Renee Franklin

2012-01-01

This article reports the findings of a study exploring the nature and extent of research on diversity in library and information science (LIS) doctoral dissertations from 2000 to 2009. By systematically examining the last decade of dissertations in the field, this study is meant to reveal the levels of interest in diversity research among doctoral…

Trends of Literature Use on Nursing Science ; A Survey of the Library of the Japanese Nursing Association

NASA Astrophysics Data System (ADS)

Yamazoe, Miyo

The literature which was used for photocopying at the Library from 1979 to 1981 was analyzed in terms of type of the users, kind of the journals, year of the publication and factors which seemed to affect the literature use. The secondary materials on nursing which are less known by librarians in other subject fields are introduced.

The influence of inhomogeneous magnetic field over a NdFeB guideway on levitation force of the HTS bulk maglev system

NASA Astrophysics Data System (ADS)

Zhao, Lifeng; Deng, Jiangtao; Li, Linbo; Feng, Ning; Wei, Pu; Lei, Wei; Jiang, Jing; Wang, Xiqin; Zhang, Yong; Zhao, Yong

2018-04-01

Dynamic responses of high temperature superconducting bulk to inhomogeneous magnetic field distribution of permanent magnet guideway, as well as enlarged amplitude of magnetic field obtained by partially covering the permanent magnet guideway (PMG) with iron sheets in different thickness, are investigated. Experiments show that the instantaneous levitation force increases with the increase of the variation rate of magnetic field (dB/dt). Meanwhile, inhomogeneous magnetic field from PMG causes the decay of levitation force. The decay of levitation force almost increases linearly with the increase of alternating magnetic field amplitude. It should be very important for the application of high-speed maglev system.

Personnel Administration: The Case Method of Teaching *

PubMed Central

Shaffer, Kenneth R.

1965-01-01

Only recently are case materials being used in the area of personnel administration, general library administration, and reference services. These permit more intellectual involvement on the part of the student than do the generalizations which result from the traditional lecture-discussion techniques. The medical library field has a professional character quite particular to itself. This is illustrated by its highly specialized clienteles, the quite special nature of the materials involved and their control, and the aura of special ethical considerations involved in any aspect of medicine. The development of a body of case materials would seem to have merit as a teaching vehicle for the medical library course, for in-service training in larger medical libraries, for workshops and institutes, and as a learning vehicle for the individual medical librarian. PMID:5832703

Design and screening of M13 phage display cDNA libraries.

PubMed

Georgieva, Yuliya; Konthur, Zoltán

2011-02-17

The last decade has seen a steady increase in screening of cDNA expression product libraries displayed on the surface of filamentous bacteriophage. At the same time, the range of applications extended from the identification of novel allergens over disease markers to protein-protein interaction studies. However, the generation and selection of cDNA phage display libraries is subjected to intrinsic biological limitations due to their complex nature and heterogeneity, as well as technical difficulties regarding protein presentation on the phage surface. Here, we review the latest developments in this field, discuss a number of strategies and improvements anticipated to overcome these challenges making cDNA and open reading frame (ORF) libraries more readily accessible for phage display. Furthermore, future trends combining phage display with next generation sequencing (NGS) will be presented.

Polyelemental nanoparticle libraries.

PubMed

Chen, Peng-Cheng; Liu, Xiaolong; Hedrick, James L; Xie, Zhuang; Wang, Shunzhi; Lin, Qing-Yuan; Hersam, Mark C; Dravid, Vinayak P; Mirkin, Chad A

2016-06-24

Multimetallic nanoparticles are useful in many fields, yet there are no effective strategies for synthesizing libraries of such structures, in which architectures can be explored in a systematic and site-specific manner. The absence of these capabilities precludes the possibility of comprehensively exploring such systems. We present systematic studies of individual polyelemental particle systems, in which composition and size can be independently controlled and structure formation (alloy versus phase-separated state) can be understood. We made libraries consisting of every combination of five metallic elements (Au, Ag, Co, Cu, and Ni) through polymer nanoreactor-mediated synthesis. Important insight into the factors that lead to alloy formation and phase segregation at the nanoscale were obtained, and routes to libraries of nanostructures that cannot be made by conventional methods were developed. Copyright © 2016, American Association for the Advancement of Science.

U.S. Field Artillery after World War I: Modernizing the Force While Downsizing

DTIC Science & Technology

2014-06-13

weapons, and tactics. It convened several boards to assess the requirements for an effective field artillery force, studying the materiel and......weapons, and tactics. It convened several boards to assess the requirements for an effective field artillery force, studying the materiel and

The Energetics of Motivated Cognition: A Force-Field Analysis

ERIC Educational Resources Information Center

Kruglanski, Arie W.; Belanger, Jocelyn J.; Chen, Xiaoyan; Kopetz, Catalina; Pierro, Antonio; Mannetti, Lucia

2012-01-01

A force-field theory of motivated cognition is presented and applied to a broad variety of phenomena in social judgment and self-regulation. Purposeful cognitive activity is assumed to be propelled by a "driving force" and opposed by a "restraining force". "Potential" driving force represents the maximal amount of energy an individual is prepared…

The Ehrenfest force field: Topology and consequences for the definition of an atom in a molecule.

PubMed

Martín Pendás, A; Hernández-Trujillo, J

2012-10-07

The Ehrenfest force is the force acting on the electrons in a molecule due to the presence of the other electrons and the nuclei. There is an associated force field in three-dimensional space that is obtained by the integration of the corresponding Hermitian quantum force operator over the spin coordinates of all of the electrons and the space coordinates of all of the electrons but one. This paper analyzes the topology induced by this vector field and its consequences for the definition of molecular structure and of an atom in a molecule. Its phase portrait reveals: that the nuclei are attractors of the Ehrenfest force, the existence of separatrices yielding a dense partitioning of three-dimensional space into disjoint regions, and field lines connecting the attractors through these separatrices. From the numerical point of view, when the Ehrenfest force field is obtained as minus the divergence of the kinetic stress tensor, the induced topology was found to be highly sensitive to choice of gaussian basis sets at long range. Even the use of large split valence and highly uncontracted basis sets can yield spurious critical points that may alter the number of attraction basins. Nevertheless, at short distances from the nuclei, in general, the partitioning of three-dimensional space with the Ehrenfest force field coincides with that induced by the gradient field of the electron density. However, exceptions are found in molecules where the electron density yields results in conflict with chemical intuition. In these cases, the molecular graphs of the Ehrenfest force field reveal the expected atomic connectivities. This discrepancy between the definition of an atom in a molecule between the two vector fields casts some doubts on the physical meaning of the integration of Ehrenfest forces over the basins of the electron density.

Bubble Dynamics, Two-Phase Flow, and Boiling Heat Transfer in Microgravity

NASA Technical Reports Server (NTRS)

Chung, Jacob N.

1996-01-01

The objective of the research is to study the feasibility of employing an external force to replace the buoyancy force in order to maintain nucleate boiling in microgravity. We have found that a bulk velocity field, an electric field and an acoustic field could each play the role of the gravity field in microgravity. Nucleate boiling could be maintained by any one of the three external force fields in space.

RVC-CAL library for endmember and abundance estimation in hyperspectral image analysis

NASA Astrophysics Data System (ADS)

Lazcano López, R.; Madroñal Quintín, D.; Juárez Martínez, E.; Sanz Álvaro, C.

2015-10-01

Hyperspectral imaging (HI) collects information from across the electromagnetic spectrum, covering a wide range of wavelengths. Although this technology was initially developed for remote sensing and earth observation, its multiple advantages - such as high spectral resolution - led to its application in other fields, as cancer detection. However, this new field has shown specific requirements; for instance, it needs to accomplish strong time specifications, since all the potential applications - like surgical guidance or in vivo tumor detection - imply real-time requisites. Achieving this time requirements is a great challenge, as hyperspectral images generate extremely high volumes of data to process. Thus, some new research lines are studying new processing techniques, and the most relevant ones are related to system parallelization. In that line, this paper describes the construction of a new hyperspectral processing library for RVC-CAL language, which is specifically designed for multimedia applications and allows multithreading compilation and system parallelization. This paper presents the development of the required library functions to implement two of the four stages of the hyperspectral imaging processing chain--endmember and abundances estimation. The results obtained show that the library achieves speedups of 30%, approximately, comparing to an existing software of hyperspectral images analysis; concretely, the endmember estimation step reaches an average speedup of 27.6%, which saves almost 8 seconds in the execution time. It also shows the existence of some bottlenecks, as the communication interfaces among the different actors due to the volume of data to transfer. Finally, it is shown that the library considerably simplifies the implementation process. Thus, experimental results show the potential of a RVC-CAL library for analyzing hyperspectral images in real-time, as it provides enough resources to study the system performance.

Educational Programs in the Health Field.

ERIC Educational Resources Information Center

Hospitals, 1971

1971-01-01

This document lists by location educational programs in the health field in the United States and Canada. Areas covered include Certified Laboratory Assistant Programs, Cytotechnology, Dental Hygiene, Dentistry, Dietetics, Hospital Administration, Inhalation Therapy, Library Science, Medical Illustration, Medical Records, Medical Technology,…

Using an electrohydraulic ankle foot orthosis to study modifications in feedforward control during locomotor adaptation to force fields applied in stance

PubMed Central

Noel, Martin; Fortin, Karine; Bouyer, Laurent J

2009-01-01

Background Adapting to external forces during walking has been proposed as a tool to improve locomotion after central nervous system injury. However, sensorimotor integration during walking varies according to the timing in the gait cycle, suggesting that adaptation may also depend on gait phases. In this study, an ElectroHydraulic AFO (EHO) was used to apply forces specifically during mid-stance and push-off to evaluate if feedforward movement control can be adapted in these 2 gait phases. Methods Eleven healthy subjects walked on a treadmill before (3 min), during (5 min) and after (5 min) exposure to 2 force fields applied by the EHO (mid-stance/push-off; ~10 Nm, towards dorsiflexion). To evaluate modifications in feedforward control, strides with no force field ('catch strides') were unexpectedly inserted during the force field walking period. Results When initially exposed to a mid-stance force field (FF20%), subjects showed a significant increase in ankle dorsiflexion velocity. Catches applied early into the FF20% were similar to baseline (P > 0.99). Subjects gradually adapted by returning ankle velocity to baseline over ~50 strides. Catches applied thereafter showed decreased ankle velocity where the force field was normally applied, indicating the presence of feedforward adaptation. When initially exposed to a push-off force field (FF50%), plantarflexion velocity was reduced in the zone of force field application. No adaptation occurred over the 5 min exposure. Catch strides kinematics remained similar to control at all times, suggesting no feedforward adaptation. As a control, force fields assisting plantarflexion (-3.5 to -9.5 Nm) were applied and increased ankle plantarflexion during push-off, confirming that the lack of kinematic changes during FF50% catch strides were not simply due to a large ankle impedance. Conclusion Together these results show that ankle exoskeletons such as the EHO can be used to study phase-specific adaptive control of the ankle during locomotion. Our data suggest that, for short duration exposure, a feedforward modification in torque output occurs during mid-stance but not during push-off. These findings are important for the design of novel rehabilitation methods, as they suggest that the ability to use resistive force fields for training may depend on targeted gait phases. PMID:19493356

Using an electrohydraulic ankle foot orthosis to study modifications in feedforward control during locomotor adaptation to force fields applied in stance.

PubMed

Noel, Martin; Fortin, Karine; Bouyer, Laurent J

2009-06-03

Adapting to external forces during walking has been proposed as a tool to improve locomotion after central nervous system injury. However, sensorimotor integration during walking varies according to the timing in the gait cycle, suggesting that adaptation may also depend on gait phases. In this study, an ElectroHydraulic AFO (EHO) was used to apply forces specifically during mid-stance and push-off to evaluate if feedforward movement control can be adapted in these 2 gait phases. Eleven healthy subjects walked on a treadmill before (3 min), during (5 min) and after (5 min) exposure to 2 force fields applied by the EHO (mid-stance/push-off; approximately 10 Nm, towards dorsiflexion). To evaluate modifications in feedforward control, strides with no force field ('catch strides') were unexpectedly inserted during the force field walking period. When initially exposed to a mid-stance force field (FF 20%), subjects showed a significant increase in ankle dorsiflexion velocity. Catches applied early into the FF 20% were similar to baseline (P > 0.99). Subjects gradually adapted by returning ankle velocity to baseline over approximately 50 strides. Catches applied thereafter showed decreased ankle velocity where the force field was normally applied, indicating the presence of feedforward adaptation. When initially exposed to a push-off force field (FF 50%), plantarflexion velocity was reduced in the zone of force field application. No adaptation occurred over the 5 min exposure. Catch strides kinematics remained similar to control at all times, suggesting no feedforward adaptation. As a control, force fields assisting plantarflexion (-3.5 to -9.5 Nm) were applied and increased ankle plantarflexion during push-off, confirming that the lack of kinematic changes during FF 50% catch strides were not simply due to a large ankle impedance. Together these results show that ankle exoskeletons such as the EHO can be used to study phase-specific adaptive control of the ankle during locomotion. Our data suggest that, for short duration exposure, a feedforward modification in torque output occurs during mid-stance but not during push-off. These findings are important for the design of novel rehabilitation methods, as they suggest that the ability to use resistive force fields for training may depend on targeted gait phases.

Engineering on-chip nanoporous gold material libraries via precision photothermal treatment [Precision Photothermal Annealing of Nanoporous Gold Thin Films for the Microfabrication of a Single-ship Material Libraries

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chapman, Christopher A. R.; Wang, Ling; Biener, Juergen

Single-chip material libraries of thin films of nanostructured materials are a promising approach for high throughput studies of structure-property relationship in the fields of physics and biology. Nanoporous gold (np-Au), produced by an alloy corrosion process, is a nanostructured material of specific interest in both these fields. One attractive property of np-Au is its self-similar coarsening behavior by thermally induced surface diffusion. However, traditional heat application techniques for the modification of np-Au are bulk processes that cannot be used to generate a library of different pore sizes on a single chip. Laser micromachining offers an attractive solution to this problemmore » by providing a means to apply energy with high spatial and temporal resolution. In our present study we use finite element multiphysics simulations to predict the effects of laser mode (continuous-wave vs. pulsed) and supporting substrate thermal conductivity on the local np-Au film temperatures during photothermal annealing and subsequently investigate the mechanisms by which the np-Au network is coarsening. Our simulations predict that continuous-wave mode laser irradiation on a silicon supporting substrate supports the widest range of morphologies that can be created through the photothermal annealing of thin film np-Au. Using this result we successfully fabricate a single-chip material library consisting of 81 np-Au samples of 9 different morphologies for use in increased throughput material interaction studies.« less