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At least 73 records · Page 4Linked to original sources
PubMed1996

Using concept maps on the World-Wide Web to access a curriculum database for problem-based learning.

Development of medical school curriculum databases continues to be challenging. Representation of the instructional unit is becoming increasingly difficult due to characteristics of the problem-based learning (PBL) curricula. Curriculum databases may be used to store materials for the PBL curricula, and also to provide a delivery mechanism for those materials. However, in order to take advantage of the curriculum database as a tool for PBL, methods for accessing the curriculum database that are better suited to the information needs of students, faculty, and administrators must be developed. Concept maps are directed graph representations of conceptual relationships, and may be used to represent the content of a curriculum database. In this paper, we describe a Web application that uses Java-based concept maps was the user interface to a curriculum database.

Computer Communication Networks↗
PubMed1991

Stochastic webs and their applications.

The conditions for the appearance of a stochastic web in degenerate dynamic systems and typical physical problems that lead to such a web are analyzed. Examples of webs are considered, as well as their symmetry, width, and structural changes. A description is given of a change in the diffusion dynamics along the web channels as a function of the number of the degrees of freedom and the phenomenon of stochastic percolation is discussed.

Journal Article↗
PubMedDate not supplied

Internet as clinical information system: application development using the World Wide Web.

Clinical computing application development at Columbia-Presbyterian Medical Center has been limited by the lack of a flexible programming environment that supports multiple client user platforms. The World Wide Web offers a potential solution, with its multifunction servers, multiplatform clients, and use of standard protocols for displaying information. The authors are now using the Web, coupled with their own local clinical data server and vocabulary server, to carry out rapid prototype development of clinical information systems. They have developed one such prototype system that can be run on most popular computing platforms from anywhere on the Internet. The Web paradigm allows easy integration of clinical information with other local and Internet-based information sources. The Web also simplifies many aspects of application design; for example, it includes facilities for the use of encryption to meet the authors' security and confidentiality requirements. The prototype currently runs on only the Web server in the Department of Medical Informatics at Columbia University, but it could be run on other Web servers that access the authors' clinical data and vocabulary servers. It could also be adapted to access clinical information from other systems with similar server capabilities. This approach may be adaptable for use in developing institution-independent standards for data and application sharing.

Computer Communication Networks↗
PubMed1998

Development of a web based electronic patient record extending accessibility to clinical information and integrating ancillary applications.

Web-technology offers a powerful mechanism for providing access to clinic information. Applications need no longer to be tied to a specific client operating system. The Johns Hopkins Hospital has designed a web based electronic patient record system which seamlessly incorporates multiple web sites. This paper will discuss the motivations for building the system, the architecture, and the challenges faced in designing the architecture.

Academic Medical Centers↗
PubMed2000

Distributed nuclear medicine applications using World Wide Web and Java technology.

At present, medical applications applying World Wide Web (WWW) technology are mainly used to view static images and to retrieve some information. The Java platform is a relative new way of computing, especially designed for network computing and distributed applications which enables interactive connection between user and information via the WWW. The Java 2 Software Development Kit (SDK) including Java2D API, Java Remote Method Invocation (RMI) technology, Object Serialization and the Java Advanced Imaging (JAI) extension was used to achieve a robust, platform independent and network centric solution. Medical image processing software based on this technology is presented and adequate performance capability of Java is demonstrated by an iterative reconstruction algorithm for single photon emission computerized tomography (SPECT).

Image Processing, Computer-Assisted↗
PubMed2003

Achieving evolvable Web-database bioscience applications using the EAV/CR framework: recent advances.

The EAV/CR framework, designed for database support of rapidly evolving scientific domains, utilizes metadata to facilitate schema maintenance and automatic generation of Web-enabled browsing interfaces to the data. EAV/CR is used in SenseLab, a neuroscience database that is part of the national Human Brain Project. This report describes various enhancements to the framework. These include (1) the ability to create "portals" that present different subsets of the schema to users with a particular research focus, (2) a generic XML-based protocol to assist data extraction and population of the database by external agents, (3) a limited form of ad hoc data query, and (4) semantic descriptors for interclass relationships and links to controlled vocabularies such as the UMLS.

Database Management Systems↗
PubMedDate not supplied

Traditional Chinese medicine database and application on the Web.

To study traditional Chinese medicines and exchange related information through the worldwide Web, we developed a traditional Chinese medicine database and a program for searching and displaying data in the database on the Web. In this paper, the traditional Chinese medicine database is briefly introduced; the methods used in developing the program, including ISAPI (Microsoft Internet Server Application Programming Interface), VRML (Virtual Reality Model Language), and JavaScript are described; and three application examples are also given.

Databases, Factual↗
PubMed1999

World Wide Web and Internet: applications for radiologists.

Global exchange of information is one of the major sources of scientific progress in medicine. For management of the rapidly growing body of medical information, computers and their applications have become an indispensable scientific tool. Approximately 36 million computer users are part of a worldwide network called the Internet or "information highway" and have created a new infrastructure to promote rapid and efficient access to medical, and thus also to radiological, information. With the establishment of the World Wide Web (WWW) by a consortium of computer users who used a standardized, nonproprietary syntax termed HyperText Markup Language (HTML) for composing documents, it has become possible to provide interactive multimedia presentations to a wide audience. The extensive use of images in radiology makes education, worldwide consultation (review) and scientific presentation via the Internet a major beneficiary of this technical development. This is possible, since both information (text) as well as medical images can be transported via the Internet. Presently, the Internet offers an extensive database for radiologists. Since many radiologists and physicians have to be considered "Internet novices" and, hence, cannot yet avail themselves of the broad spectrum of the Internet, the aim of this article is to present a general introduction to the WWW/Internet and its applications for radiologists. All Internet sites mentioned in this article can be found at the following Internet address: http://www.univie.ac. at/radio/radio.html (Department of Radiology, University of Vienna)

Humans↗
PubMed1996

Just tell me what you want!: the promise and perils of rapid prototyping with the World Wide Web.

Construction of applications using the World Wide Web architecture and Hypertext Markup Language (HTML) documents is relatively simple. We are exploring this approach with an application, called PolyMed now in use by surgical residents for one year. We monitored use and obtained user feedback to develop new features and eliminate undesirable ones. The system has been used to keep track of over 4,200 patients. We predicted, several advantages and disadvantages to this approach to prototyping clinical applications. Our experience confirms some advantages (ease of development and customization, ability to exploit non-Web system components, and simplified user interface design) and disadvantages (lack of database management services). Some predicted disadvantages failed to materialize (difficulty modeling a clinical application with hypertext and inconveniences associated with the "connectionless" nature of the Web). We were disappointed to find that while integration of external Web applications (such as Medline) into our application was easy, our users did not find it useful.

Attitude to Computers↗
PubMed2002

Building an asynchronous web-based tool for machine learning classification.

Various unsupervised and supervised learning methods including support vector machines, classification trees, linear discriminant analysis and nearest neighbor classifiers have been used to classify high-throughput gene expression data. Simpler and more widely accepted statistical tools have not yet been used for this purpose, hence proper comparisons between classification methods have not been conducted. We developed free software that implements logistic regression with stepwise variable selection as a quick and simple method for initial exploration of important genetic markers in disease classification. To implement the algorithm and allow our collaborators in remote locations to evaluate and compare its results against those of other methods, we developed a user-friendly asynchronous web-based application with a minimal amount of programming using free, downloadable software tools. With this program, we show that classification using logistic regression can perform as well as other more sophisticated algorithms, and it has the advantages of being easy to interpret and reproduce. By making the tool freely and easily available, we hope to promote the comparison of classification methods. In addition, we believe our web application can be used as a model for other bioinformatics laboratories that need to develop web-based analysis tools in a short amount of time and on a limited budget.

Algorithms↗
PubMed1998

A generic model for Internet-accessed databases in epidemiology: a nutritional application.

The Web technology has made the exchange of information among heterogeneous platforms possible with no added cost to end-users. Adding to this, it made it possible to access databases residing on servers in different geographic locations giving thus conceptors and programmers the possibility of making distributed applications with a fraction of the time needed before. This technology is therefore very well suited to medical applications which are normally multi-user, multiplatform, and data-intensive. In this paper, we present an application for epidemiological studies based on the Web technology and the reuse of common concepts in epidemiology to produce a generic model that can be parameterisable by the end-user to suit the needs of his study. This model is then applied to develop an application to optimise the collection and processing of nutritional data for a nation-wide epidemiological study concerning renal failure patients.

Databases, Factual↗
PubMed1998

A development environment for knowledge-based medical applications on the World-Wide Web.

The World-Wide Web (WWW) is increasingly being used as a platform to develop distributed applications, particularly in contexts, such as medical ones, where high usability and availability are required. In this paper we propose a methodology for the development of knowledge-based medical applications on the web, based on the use of an explicit domain ontology to automatically generate parts of the system. We describe a development environment, centred on the LISPWEB Common Lisp HTTP server, that supports this methodology, and we show how it facilitates the creation of complex web-based applications, by overcoming the limitations that normally affect the adequacy of the web for this purpose. Finally, we present an outline of a system for the management of diabetic patients built using the LISPWEB environment.

Artificial Intelligence↗
PubMed1997

Special considerations for WEB-based clinical database applications.

The Hospital Information System at the University of Missouri-Columbia Veterinary Medical Teaching Hospital is implementing a web-based interface to the existing Hospital Information System. The "stateless" nature of HTML forms introduces a number of special considerations that, though not immediately obvious, nevertheless apply to any multi-user database application. Problems including identifying sessions and users, dealing with abandoned sessions or use of the "Back" arrow on the browser, record locking across multiple forms, state variables, and flow through "utility" forms. General solutions to each of these problems have been devised and are presented here.

Animals↗
PubMed2000

WebDietAID: an interactive Web-based nutritional counselor.

WebDietAID is a Web-based system aimed at assisting individuals affected by high serum cholesterol. The system tries to reproduce the types of intervention performed by a nutritional counselor. It is structured as a set of advisors, each of which handles a different side of the counseling process. The tasks of the advisors range from monitoring weight, to teaching about healthy nutrition, to assessing motivation and psychological obstacles to behavior change. WebDietAID is based on a development environment for Web-based applications that includes a dynamical Web server, a knowledge base management system, and an interface to a relational database. We describe the architecture of the system, and several of the implemented advisors. Finally, we discuss how the architecture could be generalized to other counseling domains.

Computer-Assisted Instruction↗
PubMed2002

Using Web technologies for implementing testing strategies.

Although the application of Web technologies to laboratory services is relatively new, it is evolving rapidly and presents both promises and challenges to those adopting it for test strategy deployment. Its application can be helpful in disseminating information about a testing strategy once it is formulated, but it's more important potential contribution is in facilitating clinicians' use of the strategy. There is an array of ways Web technologies can be used to facilitate both the initiation of a strategy at the point of order entry and ensuring optimal use of the laboratory results that emanate from a testing strategy. Web technologies present a rich set of tools for those dedicated to enhancing the value of the laboratory's contribution to patient care.

Clinical Laboratory Information Systems↗