Digital Commons Network^™

The Isolation And Detection Of Cell-Derived Microparticles In Murine And Human Plasma, Abraham Korman

The Journal of Purdue Undergraduate Research

No abstract provided.

Evocative Imagery: Integrating Annie Leibovitz’S Women With Narratives About Work And Leadership, Carolyn Shaffer

The Journal of Purdue Undergraduate Research

No abstract provided.

Presentation Of Racial Disparities In Health Care: Portrayals, Perceptions, And Health Attitudes In The Media, Rachel Greene

The Journal of Purdue Undergraduate Research

No abstract provided.

Characterization And Comparison Of Cancer Stem Cells In Human And Canine Glioma Cell Lines, Thomas Clements

The Journal of Purdue Undergraduate Research

No abstract provided.

Understanding Free Radicals: Isolating Active Thylakoid Membranes And Purifying The Cytochrome B6f Complex For Superoxide Generation Studies, Jason Stofleth

The Journal of Purdue Undergraduate Research

All life persists in an environment that is rich in molecular oxygen. The production of oxygen free radicals, or superoxide, is a necessary consequence of the biogenesis of energy in cells. Both mitochondrial and photosynthetic electron transport chains have been found to produce superoxide associated with cell differentiation, proliferation, and cell death, thereby contributing to the effects of aging. Aerobic respiration in mitochondria consumes oxygen, whereas photosynthesis in chloroplasts or cyanobacteria produces oxygen. The increased concentration of molecular oxygen may serve to allow greater availability for the production of superoxide by cytochrome bc complexes in photosynthetic membranes compared to those …

Is Local Produce Safer? Microbiological Quality Of Fresh Lettuce And Spinach From Grocery Stores And Farmers' Markets, Emiria Soendjojo

The Journal of Purdue Undergraduate Research

There is a growing demand for fresh, safe, high-quality, and locally grown vegetables. This study compared microbial populations in Romaine lettuce, Bibb lettuce, and spinach procured from grocery stores and farmers’ markets throughout the course of a summer. Standard microbial techniques were used to analyze 42 samples for the presence of total aerobic mesophilic and psychrophilic bacteria; yeasts and molds; surface and internalized coliforms and Escherichia coli; and the pathogens E. coli O157:H7 and Salmonella spp. Large variations in counts were found between produce types, sampling days, and between grocery and farmers’ market samples. The average highest microbial loads were …

Inter-Session Network Coding Schemes For Two Unicast Sessions With Sequential Hard Deadline Constraints, Xiaohang Li, Chih-Chun Wang, Xiaojun Lin

Department of Electrical and Computer Engineering Technical Reports

The emerging wireless media delivery services have placed greater demands for wireless networks to support highthroughput applications while minimizing the delay of individual packets. In this paper, we investigate using inter-session network coding to send packets wirelessly for two deadline-constrained unicast sessions. Specifically, each unicast session aims to transmit a stored video file, whose packets have hard sequential deadline constraints. We first characterize the corresponding deadlineconstrained capacity region under heterogeneous channel conditions and heterogeneous deadline constraints. We show that this deadline-constrained capacity region can be achieved asymptotically by modifying the existing generation-based schemes. Despite its asymptotic optimality, the generation-based scheme …

Evaluation Of Student Response To A Library Instruction Trials Programme Using Audio-Visual Aids, H. A. Chesshyre, P. J. Hills

Proceedings of the IATUL Conferences

No abstract provided.

Information Services In Academic Libraries, M. B. Line

Proceedings of the IATUL Conferences

No abstract provided.

Costs Of Databases: Experience With Polydoc Information Databases, H. K. Krog

Proceedings of the IATUL Conferences

No abstract provided.

Scandinavian Inter-Library Co-Operation In Computer-Based Sdi Services And The Online Use Of Inis For User Training, Elin Törnudd

Proceedings of the IATUL Conferences

Technological university libraries in the Scandinavian countries often have a dual function as university libraries and as national central libraries of technology. This applies to Helsinki University of Technology Library which, in conformity with statutory law, extends its services to any institution, enterprise or individual requiring scientific and technical information. The national responsibility includes library services and information services as well as user training. The daily routine therefore includes the provision of reference services and manual literature searches for industrial users. These, however, do not satisfy the current awareness needs of scientists and engineers engaged in research and development.

The University Library's Place In The Chain Of Information Transfer, G. A. Hamel

Proceedings of the IATUL Conferences

No abstract provided.

Organisational Structure And Division Of Activity Of Different Subsystems Of The National System For Scientific Information (Nssi), Zoltan Kováts

Proceedings of the IATUL Conferences

No abstract provided.

Information Service To Finnish Industry And To Helsinki University Of Technology, Ritva Sundquist

Proceedings of the IATUL Conferences

In 1972 Helsinki University of Technology Library was appointed the national central library of technology in Finland. According to its statutes, its tasks include offering information services to any enterprise, institution or individual requiring scientific and technical information, and channelling scientific and technical information produced in Finland into international information systems. These reponsibilities mean daily reference services and manual literature searches as well as computer-based current awareness services and retrospective searches for a great variety of clients.

Aims And Tasks Of The Documentation Department Of The Technological University Library (Tul) Berlin, Dietrich Fleischer

Proceedings of the IATUL Conferences

No abstract provided.

Libraries As Special Information Systems, Paul Kaegbein

Proceedings of the IATUL Conferences

No abstract provided.

The Central Library For Technology Of The German Democratic Republic - A Centre Of Scientific Information For Supplying Information To The Industry Of The German Democratic Republic, Arndt Pflug

Proceedings of the IATUL Conferences

No abstract provided.

Document Supply To Industrial Users Of Database Services, W Rittberger, I Lankenau

Proceedings of the IATUL Conferences

No abstract provided.

The Basic Principles For The Development Of A Computerized Information System In The Central Technical Library (Strategic Appraisal), Nada Cucnik-Majcen

Proceedings of the IATUL Conferences

Today, when we talk about information technology issues in library and information services, it is difficult to outline with great precision optimal developmental objectives for these services. The problem with which information providers using sophisticated information technology are confronted is how to plan for the efficient management of information and library services in the fast-growing and constantly changing field of electronic information, in order to meet the increasing demand from the present business and industrial sector for library services.

Universal Availability Of Publications In An Electronic Age, Maurice B. Line

Proceedings of the IATUL Conferences

No abstract provided.

Document Delivery - The Dawn Of A New Era, Andrew Braid

Proceedings of the IATUL Conferences

Only a few years ago the phrase 'document delivery' was never used in connection with libraries. Instead the term 'inter-library loan' (ILL) was used. The reason for the change is very simple and is due entirely to photocopying machines. Before these existed it was a very cumbersome, slow and expensive operation to màke copies of individual documents from bound books and journals. Photocopying machines allowed the quick and cheap duplication of documents: these copies could be supplied far more cheaply and efficiently than the loan of an item. A second cause was the development of online bibliographic databases which give …

Connecting To The Future At Mit: The Effects Of Isdn On Remote Online Searching, Susan N. Bjørner, Mary E. Pensyl

Proceedings of the IATUL Conferences

No abstract provided.

Windowing The Past: A Seventeenth Century Technological Archive And Its Electronic Exploitation, Alasdair Paterson

Proceedings of the IATUL Conferences

The management of manuscript collections - unique, irreplaceable, fragile - has historically struggled to reconcile preservation with access. Academic librarians know only too well the uneasy negotiation between the conflicting imperatives of security and availability, conservation and use, which comes to define a level of public service in this area.

It is therefore not surprising that here, as elsewhere, the potential of new electronic media is increasingly a matter for investigation. Manuscripts transcribed, keyboarded or scanned into microcomputer systems become "virtual" manuscripts, no longer unique or fragile, potentially unlimited as to time, place, frequency and volume of use, retrievable through …

Avenue: A Multimedia Development Project At Dartmouth College, Mark Franklin, James Fries

Proceedings of the IATUL Conferences

No abstract provided.

Information Technology And Communication Function: A Challenge For Behavior, Mario A. Farias

Proceedings of the IATUL Conferences

No abstract provided.

Online Public Access Catalog Retrieval Structures And Techniques: With Reference To Recent Developments In The United States And Great Britain, Sharon E. Clark, William H. Mischo

Proceedings of the IATUL Conferences

The last few years have witnessed the introduction of several important information technologies, including powerful microcomputer workstations, optical disk and advanced magnetic disk storage media, computer graphics technologies, the availability of nationwide and campus wide computer networks, and the use of sophisticated search engines (such as BRS/SEARCH) in local online catalogs. These technologies have greatly influenced all aspects of library information services, including the provision of enhanced subject access and access to a wider variety of bibliographic resources for library users.

The United States and Great Britain are both taking leadership roles in developing effective solutions to improved access and …

The Use Of Videodisc Technology In The Storage And Retrieval Of Visual Information: The Hong Kong Polytechnic Library Experience, Barry Burton

Proceedings of the IATUL Conferences

No abstract provided.

Hungarian Technical University Libraries In The Stream Of Modernization, József Zsidai

Proceedings of the IATUL Conferences

No abstract provided.

The Campus Network – Expanding Library Services, Helen Shuster

Proceedings of the IATUL Conferences

The Gordon Library and the College Computer Center at Worcester Polytechnic Institute have developed a library program on the central campus Encore computer which is accessible to the entire college community via the campus network and which enables faculty, staff and students to receive or request specific library services via a terminal or PC in campus offices, labs, dormitories, or at home.

Artificial Intelligence In Information Services: Revolution Or Survival?, John A. Mess

Proceedings of the IATUL Conferences

The evolution of society places a growing demand on access to information. Libraries have been pivotal in shaping society by providing this access, but now that role has been altered by information dynamics and knowledge economics. The rapid advances in computer technology and software design, especially in artificial intelligence, have shifted libraries to a "demand" economy. Unless libraries begin exploiting the technologies and innovate manage information and knowledge, they may face obsolescence in the 21st century.