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PubMed1978

The controversy over change.

The full impact of twentieth century technology upon medical libraries was first felt in the late 1950s and early 1960s with the introduction of electronic automation into library methodology. During those years, often the aura of technology for the sake of technology prevailed, and medical librarians did little to inform themselves of capabilities, potentialities, and limitations in relation to cost-effective library usage of automation. Likewise, currently microforms and audiovisuals are frequently acquired for their own sake instead of for their capacity to transmit messages in the most effective and comprehensive way possible. Controversy has raged and still rages over the pros and cons of applying modern technology to library procedures and over the coexistence of the printed page with electronic media. New systems and methodologies, machine or manual, must realistically be evaluated in terms of increased service output by the library to its clientele. Regardless of technological sophistication, any machine that does not significantly contribute to that specific aim has no place in a library. The tradition of the medical librarian has always been to collect, organize, store, and disseminate information in the most efficient manner that the media of the times have had to offer.

Audiovisual Aids↗
PubMed1998

New developments in automated PrepLCMS extends the robustness and utility of the method for compound library analysis and purification.

New developments in the high throughput purification of combinatorial libraries by automated preparative LC-MS is presented. To facilitate high speed purifications at the multimilligram level, short columns operated at ultra high flow rates were incorporated. In order to match the linear velocity of the short analytical columns for high speed separations (operated at 4.0 mL/min), it was required to operate the preparative columns at flow rates in excess of 70 mL/min. For chromatographically well-behaved compounds, analytical LC-MS analyses and preparative LC-MS analyses could be achieved in as little as 5 min. For compounds exhibiting poor chromatographic peak shapes and/or for compound mixtures requiring higher resolution separations, slightly longer preparative LC-MS analysis times were required (8-10 min/sample).

Chemistry, Pharmaceutical↗
PubMed1999

Inventory management and reagent supply for automated chemistry.

Developments in automated chemistry have kept pace with developments in HTS such that hundreds of thousands of new compounds can be rapidly synthesized in the belief that the greater the number and diversity of compounds that can be screened, the more successful HTS will be. The increasing use of automation for Multiple Parallel Synthesis (MPS) and the move to automated combinatorial library production is placing an overwhelming burden on the management of reagents. Although automation has improved the efficiency of the processes involved in compound synthesis, the bottleneck has shifted to ordering, collating and preparing reagents for automated chemistry resulting in loss of time, materials and momentum. Major efficiencies have already been made in the area of compound management for high throughput screening. Most of these efficiencies have been achieved with sophisticated library management systems using advanced engineering and data handling for the storage, tracking and retrieval of millions of compounds. The Automation Partnership has already provided many of the top pharmaceutical companies with modular automated storage, preparation and retrieval systems to manage compound libraries for high throughput screening. This article describes how these systems may be implemented to solve the specific problems of inventory management and reagent supply for automated chemistry.

Automation↗
PubMed1983

The library and its home computer: automation as if people mattered.

To provide its users with quick and easy access to the library resources, the Muriel and Philip Berman National Medical Library, Jerusalem, between 1978 and 1982 developed an integrated library system (MAIMON) on a minicomputer. Because humans are the most important element of the library system, MAIMON's performance was evaluated in terms of benefits provided to patrons, library management, and library staff. After successfully adopting the system, users' needs and expectations have grown. How the existing system will be used and expanded to meet the new information demands at the library is discussed.

Computers↗
PubMed1993

Screening yeast artificial chromosome libraries with robot-aided automation.

Screening of collections of yeast artificial chromosomes utilizing the polymerase chain reaction (PCR) requires large numbers of reactions in parallel. Four steps were implemented to reduce the labor involved: (a) The number of initial samples for DNA extractions was decreased by compressing libraries up to 12-fold. (b) DNA extraction from yeast clones was robot assisted. (c) A BIOMEK 1000 station was adapted to pipette samples for PCR assays. (d) Sample preparation was integrated with a temperature cycler constructed to carry out up to 576 reactions in six 8 x 12-well trays. The implementation of these steps increases the number of reactions per person per day by an order of magnitude. In tests with X-chromosome-specific probes, the robot-aided screening recovered all of the clones detected by slower manual methods.

Chromosomes, Artificial, Yeast↗
PubMed1993

Use of reference libraries and hybridisation fingerprinting for relational genome analysis.

The concept of relational genome analysis by hybridisation has been developed into a working system. Various genomic and cDNA libraries have been generated and are distributed via a reference system. Analysis procedures have been tested successfully in the mapping of the entire Schizosaccharomyces pombe genome. In another test-case for their refinement, analyses on the Drosophila genome are well under way. Human and mouse libraries are being studied on all levels, from generating YAC maps to partially sequencing representative cDNA libraries. The automation of the involved processes and the development of improved image detection and analysis are well advanced.

Animals↗
PubMed1999

Automated parallel synthesis of a tetrahydroisoquinolin-based library: potential prolyl endopeptidase inhibitors.

Solution-phase automated parallel synthesis of a Tic-based library is described. This library comprising 2560 members, was obtained from the combination of 80 carboxylic acids and 32 amines and was screened against Tc80 protease, a parasitic prolyl endopeptidase secreted by Trypanosoma cruzi. Pyrrolidine derivatives proved the most potent inhibitors with IC50 values found in the low nanomolar range.

Isoquinolines↗
PubMed1994

Identification of tryptophan and tyrosine residues in peptides separated by capillary electrophoresis by their second-derivative spectra using diode-array detection.

The use of diode-array detection allows the non-destructive identification of tryptophan and tyrosine residues in complex peptide mixtures separated by capillary electrophoresis. Second-order derivative spectra of both amino acids show significant differences while zero-order spectra are overlapping to a great extent. A mixture of peptides containing tryptophan and/or tyrosine residues was used to evaluate this method. Tryptic peptide maps of carbonic anhydrase and of the bacterial chaperonin protein GroEL, and of an autodigest of trypsin were characterized for tryptophan- and tyrosine-containing peptides. Automated spectra library search was performed successfully.

Amino Acid Sequence↗
PubMed1995

Changes in the National Health Service and the effects on the hospital library service: case study based on the Cumberland Infirmary.

The perception of change so often differs from the reality. This article traces the effect on one hospital library of some of the major changes within the NHS during the past 10 years. It explores the importance of external factors such as location and proximity to other professional groups and questions the survival of the multidisciplinary hospital library.

Computer Systems↗
PubMed1995

The organization of the digital library.

As digital information proliferates and the difficulties of managing it threaten to overwhelm traditional publication and information delivery processes, new visions of a digital library are forming. Exactly what a digital library is and how it is to be organized have not yet been determined, and bibliographic organization of digital information has not been sufficiently addressed. Bibliography is the systematic description or classification of writings or publications considered as material objects. In today's digital world, such material objects may no longer be relevant, but the need for systematic description remains. The important issue is not whether digital bibliography is needed but, instead, whether or not existing bibliographic techniques are appropriate for this new media. A second issue is the location of the responsibility for a new digital bibliography. Does it rest with medical informaticians, often the producers of this new digital information, or with librarians, traditionally the classifiers of information? Developments in both medical informatics and medical librarianship indicate a need for greater collaboration between these specialties in order to achieve their common purpose--the creation, classification, and dissemination of scholarly information.

Bibliography of Medicine↗
PubMedDate not supplied

Virtual shelves in a digital library: a framework for access to networked information sources.

OBJECTIVE: Develop a framework for collections-based access to networked information sources that addresses the problem of location-dependent access to information sources. DESIGN: This framework uses a metaphor of a virtual shelf. A virtual shelf is a general-purpose server that is dedicated to a particular information subject class. The identifier of one of these servers identifies its subject class. Location-independent call numbers are assigned to information sources. Call numbers are based on standard vocabulary codes. The call numbers are first mapped to the location-independent identifiers of virtual shelves. When access to an information resource is required, a location directory provides a second mapping of these location-independent server identifiers to actual network locations. RESULTS: The framework has been implemented in two different systems. One system is based on the Open System Foundation/Distributed Computing Environment and the other is based on the World Wide Web. CONCLUSIONS: This framework applies in new ways traditional methods of library classification and cataloging. It is compatible with two traditional styles of selecting information searching and browsing. Traditional methods may be combined with new paradigms of information searching that will be able to take advantage of the special properties of digital information. Cooperation between the library-informational science community and the informatics community can provide a means for a continuing application of the knowledge and techniques of library science to the new problems of networked information sources.

Catalogs, Library↗
PubMed1998

The use of electronic mail at the reference desk: impact of a computer-mediated communication technology on librarian-client interactions.

Commonly recognized computer-mediated communication (CMC) tools include virtual environments, bibliographic databases, listservers, newsgroups, group teleconferencing, interactive messaging systems and electronic mail. The use of these technologies in libraries has grown exponentially over the past decade. Electronic mail has emerged as an especially popular communication tool for librarians, and their colleagues and patrons. This paper explores the use of a reference department electronic mail service and its impact on reference services and librarian-client interactions. Several issues related to the implementation of CMC technologies are presented, including the maintenance and monitoring of reference electronic mail systems, the types of questions that are typically posted, and potential barriers to the implementation and use of reference e-mail.

Academic Medical Centers↗
PubMedDate not supplied

I2Cnet medical image annotation service.

I2Cnet (Image Indexing by Content network) aims to provide services related to the content-based management of images in healthcare over the World-Wide Web. Each I2Cnet server maintains an autonomous repository of medical images and related information. The annotation service of I2Cnet allows specialists to interact with the contents of the repository, adding comments or illustrations to medical images of interest. I2Cnet annotations may be communicated to other users via e-mail or posted to I2Cnet for inclusion in its local repositories. This paper discusses the annotation service of I2Cnet and argues that such services pave the way towards the evolution of active digital medical image libraries.

Computer Communication Networks↗
PubMed1999

The Health Sciences and Human Services Library: "this is one sweet library".

The opening of the Health Sciences and Human Services Library at the University of Maryland, Baltimore, in April, 1998, was a highly anticipated event. With its unique architecture and stunning interior features, it is a signature building for the university in downtown Baltimore. The building is equipped with state-of-the-art technology, but has a warm, inviting atmosphere making it a focal point for the campus community. Its highly functional, flexible design will serve the staff and users well into the twenty-first century.

Baltimore↗
PubMed1995

From brick face to cyberspace.

This paper will discuss the library as a place, looking at the history of the library as a building or part of a building. It will briefly trace the development of health sciences libraries, enumerate standard sources for planning libraries, and consider whether or not the library as a place has a future.

Diffusion of Innovation↗