Research Topic Explore: I am interested in: caffeine and pregnancy and women gives the following can

1
Research Topic Explore I am interested in
caffeine and pregnancy and women gives the
following candidates
APPENDIX 1
Question is interpreted by Boolean logic the
three concepts appear anywhere in the record.
Number of hits for individual concepts also are
shown.
Research Topic Explore I am interested in the
effect of caffeine on pregnant women gives the
following candidates
Only two concepts identified, that is pregnant
women is considered as one concept. Candidate
in which concepts are closely associated
(usually within a single sentence) is presented
together with candidate where the two concepts
are anywhere in the record.
2
Research Topic Explore I am interested in the
effect of caffeine on pregnancy in women gives
the following candidates
Three concepts are identified and are presented
closely associated and anywhere in the
record. Then all possible combinations of two
of the concepts are presented similarly.
Finally the individual concepts are presented.
Research Topic Explore I am interested in
caffeine pregnancy women gives the following
candidate
Input is interpreted as a single concept and
not as separate keywords. Words in a single
concept will appear closely associated in the
record.
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An alternative approach would be to start from
the substance caffeine through Research Topic
Chemical Substance, then to Get References and
finally Refine References with the concept, for
example pregnant women. This gives 42
references and the History of this Task looks
like
A similar (but not the same) answer set is
obtained. The difference is that when a
substance name is entered through Explore
Research Topic then the CAS Registry Number for
the substance and all records with the substance
name (as entered) are retrieved. However some
records from the latter may refer to derivatives
of the substance, for example a record containing
the words analogues of caffeine or caffeine
derivatives would be retrieved when caffeine
is in the input. However when approached from
Explore Chemical Substance only records with the
CAS Registry Number will be retrieved. This
provides greater precision (when that is a key
criterion).
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References are first presented in abbreviated
format. To see the complete record click on the
microscope. To mark a record (for example to
refine, save or print only some records), check
the rectangular box and execute the further
instruction required.
Substances are first presented in abbreviated
format. To see the complete record click on the
microscope. To mark a record (for example to
refine,save or print only some substances),
check the rectangular box and execute the further
instruction required.