<s>
ProQuest	B-Library
Dissertations	I-Library
and	I-Library
Theses	I-Library
(	O
PQDT	B-Library
)	O
is	O
an	O
online	O
database	O
that	O
indexes	O
,	O
abstracts	O
,	O
and	O
provides	O
full-text	O
access	O
to	O
dissertations	O
and	O
theses	O
.	O
</s>
<s>
It	O
is	O
produced	O
by	O
ProQuest	B-Library
and	O
was	O
formerly	O
known	O
as	O
ProQuest	B-Library
Digital	O
Dissertations	O
.	O
</s>
<s>
The	O
bibliographic	B-Library
database	I-Library
(	O
without	O
full-text	O
dissertations	O
)	O
is	O
known	O
as	O
Dissertation	O
Abstracts	O
or	O
Dissertation	O
Abstracts	O
International	O
.	O
</s>
<s>
PQDT	B-Library
annually	O
publishes	O
more	O
than	O
90%	O
of	O
all	O
dissertations	O
submitted	O
from	O
accredited	O
institutions	O
of	O
higher	O
learning	O
in	O
North	O
America	O
as	O
well	O
as	O
from	O
colleges	O
and	O
universities	O
in	O
Europe	O
and	O
Asia	O
.	O
</s>
<s>
Over	O
the	O
past	O
60	O
years	O
,	O
PQDT	B-Library
has	O
amassed	O
more	O
than	O
1.4	O
million	O
titles	O
beginning	O
with	O
the	O
first	O
U.S.	O
dissertation	O
accepted	O
by	O
a	O
university	O
(	O
Yale	O
)	O
in	O
1861	O
.	O
</s>
<s>
ProQuest	B-Library
began	O
digitizing	O
dissertations	O
in	O
1997	O
from	O
a	O
microform	O
archive	O
.	O
</s>
<s>
In	O
October	O
2015	O
,	O
ProQuest	B-Library
added	O
the	O
ability	O
for	O
authors	O
to	O
include	O
an	O
ORCID	O
identifier	O
when	O
submitting	O
a	O
thesis	O
.	O
</s>
<s>
Dissertation	O
Abstracts	O
,	O
Dissertation	O
Abstracts	O
International	O
(	O
DAI	O
)	O
is	O
a	O
bibliographic	B-Library
database	I-Library
of	O
American	O
dissertations	O
published	O
since	O
1938	O
,	O
initially	O
by	O
University	B-Library
Microfilms	I-Library
International	I-Library
(	O
UMI	O
)	O
now	O
by	O
ProQuest	B-Library
,	O
Ann	O
Arbor	O
.	O
</s>
<s>
Section	O
C	O
(	O
DAI-C	O
)	O
(	O
formerly	O
European	O
Dissertations	O
)	O
(	O
)	O
covers	O
non-North	O
American	O
materials	O
,	O
most	O
of	O
them	O
unavailable	O
for	O
purchase	O
from	O
ProQuest	B-Library
.	O
</s>
<s>
As	O
of	O
2008	O
,	O
ProQuest	B-Library
no	O
longer	O
offers	O
DAI-C	O
as	O
a	O
separate	O
product	O
.	O
</s>
