Environmental Science Database (via ProQuest)
Latest screenshot: 2023-01-18
Access to search interface:
paywalled
Last major interface update:
2021-12-01
Owner of search system:
Clarivate
Location of system headquarters:
Ann Arbor, US
Year of launch:
N/A
Type:
Aggregators' database
X-Handle:
Description of database (by system owner)
The Environmental Science Database is a cross-disciplinary resource of full-text content of global literature across this field and related disciplines. It provides the most complete collection of resources available to support research and learning in environmental science and related fields. Content is selected from several specialist topic resources in disciplines such as engineering, biotechnology, bacteriology, atmospheric science, ecology, and biology.
Description of search system (by system owner)
ProQuest is committed to empowering researchers and librarians around the world. The company's portfolio of assets - including content, technologies, and deep expertise - drives better research outcomes for users and greater efficiency for the libraries and organizations that serve them.
Notes
CAUTION!
- If you search with a single keyword and your query yields no or few hits, ProQuest sometimes automatically re-interprets your search so it identifies hits for a different keyword.
- ProQuest's NOT-operator seems only to work when entered once.
Total coverage:
5.92M
Year-over-year growth (2020-2021):
12.74%
Subject coverage:
Multidisciplinary
Retrospective coverage:
1956–2022
Record types:
60
Open Access records:
N/A
Search functionality and interface
Systematic keyword searching:
extensive
Backward citation searching:
sufficient
Forward citation searching:
sufficient
Query builder:
Search history:
Match preview:
Sorting options:
3
Query
Latency with short query:
0.8 seconds
Latency with long query:
1.6 seconds
Controlled vocabulary:
Field codes:
216
Full text search:
Search string length (narrow):
2000 terms max.
Search string length (wide):
250 terms max.
Language support: Chinese:
Language support: Cyrillic:
Truncation:
Wildcards:
Keyword position irrelevant:
Longer strings, fewer hits:
Automatic query expansion (stemming):
Verbatim queries:
Reproducible queries (time):
Reproducible queries (locations):
Operators
Search operators:
11
Boolean 'OR':
Boolean 'AND':
Boolean 'NOT':
Proximity operator:
Boolean works exact:
Nested search (parentheses):
Citation search / filtering
Record type filters:
60
Results filters:
12
Suggested related records:
Supported by bibliometric tools:
N/A
Backward citation information:
Backward citation score:
48.37%
Forward citation information:
Forward citation score:
8.24%
Retrieval
Number of accessible records:
10000
Bulk select records:
Bulk export records:
20000
Export formats:
8
API:
no
Bulk select records' backward citations:
Bulk export backward citations:
1
Bulk select records' forward citations:
Bulk export forward citations:
1
