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Results for “data accessibility”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

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At least 37 records · Page 2Linked to original sources
PubMed1986

A standard multidimensional, easy-access data file structure for Apple II computers.

A random access file structure was designed for Apple II microcomputers that allows data storage of more than 65,500 data values at 170 per Kbyte with a dynamic range of nearly 5 orders of magnitude. All or part of the data are easily accessible from BASIC under ProDOS operating conditions. The file structure accommodates single or multiple data sets in a single data file. Data values within a file with one set of data may interrelate by equal spacing along a second coordinate, such as time or space. Multiple data sets in a file can be independent, parallel or interdependent. Each interdependent data set defines the position of a data point along its coordinate in a two- or multidimensional registration system. The lowest and highest values of each data set are separately recorded to allow easy manipulation of even part of the data, e.g. for graphical presentation. The possibility of storing large numbers of data values in a single file facilitates high-resolution recording of events and simple mathematical manipulation.

Computers↗
PubMedDate not supplied

Statistical perspectives on confidentiality and data access in public health.

Confidentiality and disclosure limitation are topics that are inherently statistical but, until recently, they have received limited attention from statistical methodologists. That situation has changed considerably in the present decade. In this paper, we provide an introduction and overview of some statistical disclosure limitation issues that are of special relevance to public health studies and surveys, and the linkages to current research on bounds for multi-dimensional contingency table entries and 'simulated' categorical data. We also describe how these research methods relate to a new data access query system being developed for use by NCHS and other statistical agencies.

Confidentiality↗
PubMed2005

mVisualizer: Easily Accessible Data Exploration for Clinicians.

In medical research and clinical work, having direct access to a large knowledge base of information about patients is very useful. Software for information visualisation can help the user browse, analyse and learn from such knowledge, thus providing new insights and accelerating research. However, when introducing new software to clinicians, who may have limited computer knowledge, adoption can be hindered by the complexity of the applications and the time investments necessary to learn them. By involving clinicians directly in the design process, we have developed mVisualizer, an application that provides a hands-on workspace to visualise and explore patient data. mVisualizer was designed for accessibility and simplicity, and to encourage users to explore the data in order to make discoveries and pose new questions relevant for knowledge gathering and research. The user-centered approach helped ensure that mVisualizer is understandable and easy to learn for clinicians. The application is in use by clinicians today, and its use has led to new discoveries and theories that will be the subject of future medical research. This leads to the conclusion that information visualisation software for exploring patient data can help clinicians and researchers by making the data more accessible, which stimulates research and learning.

Biomedical Research↗
PubMed1991

The DeSyGNER data access element: a readily reusable component for the construction of data-compatible multimedia programs.

Dynamic assembly of applications from diverse and possibly disparate collections of information components is a key element for powerful information management environments. Traditional methods of application development hinder flexible integration of information components because they treat computer programs as single, isolated units of functionality where inter-application connections and sharing of intra-application information components are achieved only by special cooperation between program authors. Although many programmers strive to develop re-usable program code, it is rare that independently developed components can be readily combined into new applications. One of the major reasons for this is that there is no overall agreement as to the types of segments written, how the segments communicate, or how their data is stored. We have created a multimedia applications development architecture called DeSyGNER (the Decision Systems Group Nucleus of Extensible Resources) that provides a type-independent definition of the fundamental information-bearing unit for the construction of data-compatible applications. By incorporating a common high-level architecture and an intrinsically modular object-oriented design, DeSyGNER applications process information in smaller, isolatable, and more mobile and reusable units than do monolithic computer programs.

Computer Graphics↗
PubMed1999

Accessing data from external centralized sources to enhance analysis of a completed clinical trial.

After the data collection phase of a clinical trial has been completed, new hypotheses may surface which require additional data before they can be tested. In the Veterans Affairs Cooperative Study on Single Drug Therapy of Hypertension, we investigated the relationship between location of the participating center, race and ability to control blood pressure. The analysis indicated poorer blood pressure control among sites located in the "stroke belt" (southeastern United States), especially among African-Americans. We sought to determine whether the effect was attributable to socioeconomic patterns; however, income data were not collected as part of the original study. Therefore, we accessed centralized data bases to obtain zipcode-level income information for the randomized study patients. This approach yielded estimates of income data for 94.3% of the patients and compared favorably to data acquisition rates for variables which were collected prospectively in the study.

Antihypertensive Agents↗
PubMed1997

Proposal of a computerized algorithm for continuous wave CO2 laser on-line control during orthopaedic surgery. Phase II: simplified algorithm version (LCA-s) and helmet-mounted data access device solution.

This paper is the continuation of the Phase I report published in 1992 by Canestri. It contains recent findings on how to speed-up the process of sublimated volume forecasting for a TEM11* CO2 laserbeam in CW mode following an original model proposed by the author--called LCA--here presented in a simplified version (LCA-s) on PMMA (polymethylmethacrilate) samples. Other interesting parameters, such as the time required to create the minimal injury vb along with its physical interpretations, are reported and explained. TEM11*, TEM01* and TEM00 beams profiles are also compared and discussed for LCA-s. The results of both Phase I and Phase II of this investigation can be integrated in one single solution package for the end-user, combining fast decisions making and operational features. The final part of this paper describes the 'helmet-mounted' data recall visor methodology which allows the surgeon to access to a data base for information retrieval during the course of an operation without interrupting the surgical case itself. This particularly interesting application allows the surgeon to consult a centrally-located data base which contains important information regarding similar clinical cases, choice of laserbeam profiles and focal lengths, simulation of beam behaviours, performances and other data. The on-line and direct access to the data base supports him in all those borderline situations in the O.R. in which the laser device type and configuration/calibration play a device role in the success of the operation. Also, the helmet-mounted display frees surgeon's hands in order to allow him to continue the operation while consulting the data base on-line, thus speeding up decision processes regarding changes of laser set-up, general calibration optimization and remote clinical consultancy.

Algorithms↗
PubMed2004

The Social Transition in the North: collection and data access protocols.

OBJECTIVE: These protocols were designed to provide access to the Social Transition in the North (STN) collection and data set. METHOD: Staff at the (UAA) Institute for Circumpolar Health Studies (ICHS) reviewed, organized, inventoried, and cataloged the STN collection. RESULTS: Most of the materials in the collection are available from the UAA Archives and Manuscripts Department, Consortium Library. Documents and data containing sensitive information are maintained by ICHS to assure confidentiality of research participants. CONCLUSION: These access protocols allow researchers to obtain access to this valuable data set consistent with US research policy while protecting the integrity of the data and the confidentiality of the participants.

Alaska↗
PubMed1993

Child accident data: accessible and available?

The accessibility, availability and content of health service data on accidental injuries occurring in childhood was investigated. Death data, admission data and Accident and Emergency (A&E) data were examined. Considerable problems were experienced with the availability of routine data, and the available information was found to be limited by the nature and content of the data collected by computerized systems. Data were limited both in terms of providing information to the local Accident Prevention Working Group and for the monitoring of preventive activity. It was also determined that none of the data were being audited. It was concluded that there is a need for national agreement concerning both cause of injury coding and severity coding.

Abstracting and Indexing↗
PubMed1993

[Making census data accessible to local users in the public and private sectors].

The authors outline ways in which government statistical offices can make census data available to local public- and private-sector users. Several computer programs, including REDATAM-Plus and Geographical Information Systems, are discussed. "The successful implementation of the use of the census data at the local level will require that...national agencies facilitate the institutionalization of technology transfer by providing, among other things, technical support, training at a distance, data and cartography standards, and solutions to data protection issues." The geographical focus is on Latin America and the Caribbean. (SUMMARY IN ENG)

Americas↗
PubMed2004

ECR Browser: a tool for visualizing and accessing data from comparisons of multiple vertebrate genomes.

With an increasing number of vertebrate genomes being sequenced in draft or finished form, unique opportunities for decoding the language of DNA sequence through comparative genome alignments have arisen. However, novel tools and strategies are required to accommodate this large volume of genomic information and to facilitate the transfer of predictions generated by comparative sequence alignment to researchers focused on experimental annotation of genome function. Here, we present the ECR Browser, a tool that provides easy and dynamic access to whole genome alignments of human, mouse, rat and fish sequences. This web-based tool (http://ecrbrowser.dcode.org) provides the starting point for discovery of novel genes, identification of distant gene regulatory elements and prediction of transcription factor binding sites. The genome alignment portal of the ECR Browser also permits fast and automated alignments of any user-submitted sequence to the genome of choice. The interconnection of the ECR Browser with other DNA sequence analysis tools creates a unique portal for studying and exploring vertebrate genomes.

Animals↗
PubMed2000

Clinical trials. Company, researchers battle over data access.

A dispute between university-based researchers and the corporation that funded their study is threatening to erupt into a $7 million to $10 million legal battle. Last week, the researchers reported that a large clinical trial of an immune system booster to treat HIV-infected people found that the drug isn't effective in slowing progression to AIDS or reducing mortality. The company that developed the drug tried to block publication of the study unless the researchers included the company's analysis of a subset of the data that suggests the drug might help some people. The researchers refused.

AIDS Vaccines↗