Chemical Information Bulletin, Volume 39, Number 1, Spring 1987 Page: 24

                                
ognize that there may be multiple people in different
parts of the enterprise who require access to (that is,
need to share) the same data. This implies the necessity
to treat data as a shared asset. The challenge is
to establish policies, procedures and a "corporate
culture" which make possible, and even promote, the
management and usage of shared data as a corporate
resource. The speaker will address the issues involved
and approaches that are being used, successfully,
to resolve these issues.
TUESDAY, APRIL 7, 1987
2:25 PM
13. APPLYING EXPERT SYSTEMS TO ENVIRONMENTAL
PROBLEMS. Judith M. Hushon. Roy F.
Weston, Inc., 955 L'Enfant Plaza, 6th Floor,
Washington, DC 20024.
Historically, few expert systems have been developed
that help to solve environmental problems.
This is because the rules of thumb or heuristics often
are not codified and because, in most cases, more
than one expert's knowledge is required. In addition,
expert system tools are now being sold that permit
knowledge engineers to encode experts' knowledge
in high level languages. A number of commercially
available tools are examined with regard to their applicability
to solving environmental problems and key
differences are pointed out. The evaluated systems
include Al Expert, Rulemaster, KES, M.1, Expert-Ease
and others. Guidance will be provided in selecting
problems appropriate for expert system solution and
in selecting a tool to meet the problem solution
needs. Finally, this presentation will focus on a
number of potential environmental application areas
and show how expert systems can provide a valuable
new technological resource.
2:50 PM
14. STRUCTURE REGISTRATION AND RETRIEVAL
IN THE BEILSTEIN ONLIN SYSTEM. C. Jochum,
S.M. Welford, Beilstein Institut, Varrentrappstrasse
40-42, 6000 Frankfurt am Main 90, West
Germany.
The key aspects of the Beilstein registry system
for organic chemical compounds will be presented.
This system supports the creation and maintenance
of a large structure access by means of structure and
substructure search to the various data and bibliographic
files which together comprise the Beilstein

Factual Databank. These will include aspects of the
general design of the structure registry system, together
with more detailed consideration of the Registry
Connection Table format, and the treatment of
24 CHEMICAL INFORMATION BULLETIN

stereochemistry and tautomerism. In addition, several
substructure search systems are currently under
development and test at the Beilstein Institut. Some
aspects of the performance characteristics of these
systems, and the use of the structure registry file for
substructure search will also be presented.
2:00 PM
15. SOME OBSERVATIONS ON CHEMICAL INFORMATION
ACTIVITIES AND INSTRUCTION IN THE
PEOPLE'S REPUBLIC OF CHINA. O. Bertrand
Ramsay, Department of Chemistry, Eastern
Michigan University, Ypsilanti, Ml 48197.
I will summarize my experiences gained during
the 4 months in the Fall of 1986 while a visiting professor
at several departments of chemistry and research
institutions in China. For some of my lectures
I used instructional materials provided by (a) the Education
Committee of CINF, (b) Chemical Abstracts
Service, (c) DIALOG Information Services, as well as
(d) several Database Software Publishers (COMPRESS,
Molecular Design, etc.) The prototype of a
microcomputer program to train students in online
searching (described at the New York ACS Meeting,
April 1986) was also demonstrated. After only 4
months in China, I cannot provide the listener with
more than a modest appraisal of the status of chemical
information retrieval activities in China; it is my
conviction, however, that it will become an increasingly
important factor in their modernization programs.

3:15 PM
16. ENVIROTRENDS: THE SUBJECT AND THE PEOPLE
IN THE FIELD OF ENVIRONMENTAL SCIENCES.
Stanton S. Miller, American Chemical
Society, 1155 Sixteenth Street, N.W., Washington,
D.C. 20036.
Envirotrends analyzes the substantive makeup of
the ACS publication, Environmental Science & Technology,
and the supply of environmental scientists. A
first part analyzes the CA (Chemical Abstracts) database;
this database shows the subject content and
number of articles in ES&T during the past 20 years.
The four main sections of CA in which ES&T articles
have appeared include CA section, 4-toxicology; CA
section, 59-air pollution and industrial hygiene; CA
section, 60-water treatment and disposal; and CA
section, 61-water. The paper summarizes the information
in 5-year intervals. A second part analyzes the

NSF report on scientific and engineering personnel;
this part shows the number of scientists, those em.
ployed, their specialities, and their fields o
employment.