I
nte
rna
t
io
na
l J
o
urna
l o
f
E
lect
rica
l a
nd
Co
m
pu
t
er
E
ng
ineering
(
I
J
E
CE
)
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
,
p
p
.
357
~
372
I
SS
N:
2088
-
8
7
0
8
,
DOI
: 1
0
.
1
1
5
9
1
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v
1
6
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1
.
pp
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5
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357
J
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l ho
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:
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ttp
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ec
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r
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co
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Accessib
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o
v
ernment port
a
ls: a sy
stema
tic
ma
pping
study
M
o
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ed
Rida
O
ua
ziz
1
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a
ila
Cheik
hi
1
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Ali Id
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Ala
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n Abra
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1
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Te
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Ec
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Te
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Art
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nfo
AB
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RAC
T
A
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ticle
his
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y:
R
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Ma
y
6
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2
0
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5
R
ev
is
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Oct
2
6
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2
0
2
5
Acc
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ted
No
v
2
3
,
2
0
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5
In
re
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e
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t
y
e
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rs,
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e
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stig
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ted
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c
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t
p
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rtals
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b
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te
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a
n
y
p
ro
p
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sa
ls
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r
imp
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o
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e
m
e
n
ts.
Ho
we
v
e
r,
n
o
c
o
m
p
re
h
e
n
si
v
e
re
v
iew
h
a
s
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e
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c
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n
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u
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ted
o
n
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h
is
to
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h
is
stu
d
y
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ime
d
to
s
u
rv
e
y
a
n
d
sy
n
t
h
e
siz
e
th
e
p
u
b
li
sh
e
d
w
o
rk
o
n
th
e
a
c
c
e
ss
ib
il
it
y
o
f
e
-
g
o
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e
rn
m
e
n
t
p
o
rtals
fo
r
p
e
o
p
le
wit
h
d
isa
b
il
it
ies
.
We
c
a
rried
o
u
t
a
r
e
v
iew
u
sin
g
a
sy
ste
m
a
ti
c
m
a
p
p
in
g
st
u
d
y
(S
M
S
)
to
c
o
m
p
il
e
p
re
v
io
u
s
fin
d
in
g
s
a
n
d
p
r
o
v
i
d
e
c
o
m
p
re
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e
n
siv
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sta
te
-
of
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th
e
-
a
rt.
T
h
e
S
M
S
c
o
ll
e
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t
e
d
stu
d
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p
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b
li
s
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e
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b
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twe
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n
Ja
n
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a
ry
2
0
0
0
a
n
d
M
a
rc
h
2
0
2
5
we
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id
e
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t
ifi
e
d
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si
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g
a
n
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u
to
m
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ted
se
a
rc
h
in
fi
v
e
k
n
o
w
n
d
a
tab
a
se
s.
In
to
tal,
1
1
2
p
rima
ry
s
tu
d
ies
we
re
se
lec
ted
.
T
h
e
re
su
lt
s
sh
o
we
d
a
n
o
tab
le
in
c
re
a
se
in
in
tere
st
a
n
d
r
e
se
a
rc
h
a
c
ti
v
it
ies
re
late
d
to
a
c
c
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s
sib
il
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y
i
n
e
-
g
o
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e
rn
m
e
n
t
p
o
rtals.
Jo
u
rn
a
ls
a
re
th
e
m
o
st
wi
d
e
ly
u
se
d
p
u
b
li
c
a
ti
o
n
c
h
a
n
n
e
l;
stu
d
ies
h
a
v
e
m
a
in
l
y
f
o
c
u
se
d
o
n
e
v
a
lu
a
ti
o
n
re
se
a
rc
h
a
n
d
sh
o
w
a
c
o
m
m
it
m
e
n
t
to
i
n
c
lu
siv
it
y
.
“
AC
h
e
c
k
e
r”
a
n
d
“
Wav
e
v
a
li
d
a
to
r”
a
r
e
th
e
m
o
st
u
se
d
a
c
c
e
ss
ib
il
it
y
e
v
a
lu
a
ti
o
n
t
o
o
ls.
T
h
e
fi
n
d
in
g
s
a
lso
id
e
n
ti
fie
d
v
a
rio
u
s
a
c
c
e
s
sib
il
it
y
g
u
id
e
li
n
e
s,
wit
h
t
h
e
m
o
st
fre
q
u
e
n
tl
y
re
fe
re
n
c
e
d
b
e
i
n
g
th
e
we
b
c
o
n
ten
t
a
c
c
e
ss
ib
il
it
y
g
u
i
d
e
li
n
e
s
(
WCAG
).
Ba
se
d
o
n
th
is
st
u
d
y
,
se
v
e
ra
l
k
e
y
imp
li
c
a
ti
o
n
s
e
m
e
rg
e
fo
r
re
se
a
rc
h
e
rs,
a
n
d
a
d
d
re
ss
in
g
th
e
m
wo
u
ld
b
e
b
e
n
e
ficia
l
fo
r
re
se
a
rc
h
e
rs
to
a
d
v
a
n
c
e
e
-
g
o
v
e
rn
m
e
n
t
we
b
site
a
c
c
e
ss
ib
il
it
y
i
n
a
m
e
a
n
in
g
fu
l
wa
y
.
K
ey
w
o
r
d
s
:
Dig
ital in
clu
s
io
n
E
-
g
o
v
e
r
n
m
en
t
Hu
m
an
-
co
m
p
u
ter
i
n
ter
ac
tio
n
r
ev
iew
Sy
s
tem
atic
m
ap
p
in
g
s
tu
d
y
W
eb
co
n
ten
t a
cc
ess
ib
ilit
y
g
u
id
elin
es
W
eb
ac
ce
s
s
ib
ilit
y
T
h
is i
s
a
n
o
p
e
n
a
c
c
e
ss
a
rticle
u
n
d
e
r th
e
CC B
Y
-
SA
li
c
e
n
se
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
Mo
h
am
m
ed
R
id
a
Ou
az
iz
So
f
twar
e
Pro
ject
Ma
n
ag
em
e
n
t T
ea
m
,
E
NSI
AS,
Mo
h
am
m
e
d
V
Un
iv
er
s
ity
in
R
ab
at
Ma
d
in
at
Al
I
r
f
an
e
B
P 7
1
3
,
R
ab
at,
Mo
r
o
cc
o
E
m
ail: m
o
h
am
m
e
d
r
id
a
o
u
az
iz
@
u
m
5
.
ac
.
m
a
1.
I
NT
RO
D
UCT
I
O
N
T
h
e
g
r
o
wth
an
d
wid
e
u
s
e
o
f
th
e
I
n
ter
n
et
h
av
e
m
ad
e
th
e
w
eb
an
im
p
o
r
tan
t
ch
an
n
el
o
f
in
f
o
r
m
atio
n
an
d
s
er
v
ices
p
r
o
v
i
d
ed
to
citi
ze
n
s
u
s
in
g
e
-
g
o
v
er
n
m
e
n
t
p
o
r
tals
o
r
web
s
ites
.
T
h
u
s
,
r
eg
ar
d
less
o
f
citizen
s
’
d
is
ab
ilit
ies,
it
is
ess
en
tia
l
th
at
eq
u
al
ac
ce
s
s
b
e
g
u
ar
a
n
teed
b
y
th
ese
p
o
r
tals
f
o
r
all
[
1
]
.
E
-
g
o
v
er
n
m
en
t
is
d
ef
in
e
d
b
y
th
e
Un
ited
Natio
n
s
(
UN)
as
“th
e
u
s
e
o
f
in
f
o
r
m
atio
n
an
d
co
m
m
u
n
icatio
n
tech
n
o
lo
g
ie
s
(
I
C
T
s
)
to
d
eliv
er
g
o
v
er
n
m
en
t
s
er
v
ices
m
o
r
e
ef
f
ec
tiv
ely
an
d
e
f
f
icien
tly
to
c
itizen
s
an
d
b
u
s
in
ess
es.
I
t
is
th
e
ap
p
licatio
n
o
f
I
C
T
in
g
o
v
er
n
m
e
n
t
o
p
er
atio
n
s
,
ac
h
iev
in
g
p
u
b
lic
en
d
s
b
y
d
ig
ital
m
ea
n
s
”
[
2
]
.
T
h
e
a
im
is
to
en
h
a
n
ce
co
m
m
u
n
icatio
n
an
d
in
ter
ac
tio
n
s
b
etwe
en
g
o
v
er
n
m
en
ts
an
d
t
h
eir
citizen
s
b
y
p
r
o
v
i
d
in
g
o
n
lin
e
s
er
v
ices
th
at
ar
e
u
s
ab
le,
r
ea
d
ab
le,
a
n
d
eq
u
ally
ac
ce
s
s
ib
le
o
n
v
ar
io
u
s
d
ev
ic
es
at
an
y
tim
e
an
d
lo
ca
tio
n
[
3
]
.
E
-
g
o
v
e
r
n
m
en
t
p
o
r
tals
h
av
e
b
ec
o
m
e
e
v
en
m
o
r
e
ess
en
tial
d
u
r
in
g
th
e
C
OVI
D
-
1
9
p
an
d
em
ic
as
m
an
y
n
atio
n
s
h
av
e
b
ee
n
f
o
r
ce
d
to
m
o
v
e
th
eir
o
p
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atio
n
s
a
n
d
s
er
v
ices
o
n
lin
e
to
lim
it
th
e
s
p
r
ea
d
o
f
th
e
p
an
d
e
m
ic.
No
tab
ly
,
t
h
e
W
o
r
ld
Hea
lth
Or
g
an
izatio
n
(
W
HO)
p
u
b
lis
h
ed
a
r
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t
s
tu
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in
2
0
2
3
af
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tim
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with
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I
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8
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I
n
t J E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
:
3
5
7
-
372
358
s
o
m
e
f
o
r
m
o
f
d
is
ab
ilit
y
[
4
]
.
C
itizen
s
with
d
is
ab
ili
ties
o
r
with
im
p
air
m
en
ts
o
r
s
p
ec
ial
n
ee
d
s
o
r
o
th
er
ac
ce
s
s
ib
ilit
y
r
eq
u
ir
em
en
ts
m
ay
en
co
u
n
te
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ad
d
itio
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b
s
tacle
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in
o
b
tain
in
g
ess
en
tial
in
f
o
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m
atio
n
an
d
s
er
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ices
o
n
lin
e,
th
u
s
em
p
h
asizin
g
th
e
n
ee
d
f
o
r
ac
ce
s
s
ib
le
e
-
g
o
v
er
n
m
en
t
s
er
v
ices
[
5
]
d
esig
n
e
d
to
ac
co
m
m
o
d
ate
all
citizen
s
,
r
eg
ar
d
less
o
f
th
eir
a
b
ilit
ies o
r
d
is
ab
ilit
ies.
T
h
e
UN
d
ef
in
es Ac
ce
s
s
ib
ilit
y
as “
a
f
u
n
d
am
en
tal
p
r
in
cip
le
en
s
u
r
in
g
eq
u
al
ac
ce
s
s
an
d
in
cl
u
s
io
n
f
o
r
al
l
in
d
iv
id
u
als.
R
em
o
v
in
g
b
a
r
r
ier
s
to
f
ac
ilit
ie
s
,
s
er
v
ices,
an
d
in
f
o
r
m
atio
n
is
ess
en
tial
f
o
r
th
e
f
u
ll
an
d
ef
f
ec
tiv
e
p
ar
ticip
atio
n
o
f
p
er
s
o
n
s
with
d
is
ab
ilit
ies
in
s
o
ciety
”
[
6
]
.
T
h
e
id
ea
o
f
ac
ce
s
s
ib
le
d
esig
n
g
u
ar
a
n
tees
“d
ir
ec
t
ac
ce
s
s
(
i.e
.
,
u
n
ass
is
ted
)
as
well
as
in
d
ir
ec
t
ac
ce
s
s
co
m
p
atib
il
ity
with
a
p
er
s
o
n
’
s
ass
is
tiv
e
te
ch
n
o
lo
g
y
,
s
u
c
h
as
co
m
p
u
ter
s
cr
ee
n
r
ea
d
er
s
”
[
3
]
.
Fu
r
th
er
m
o
r
e
,
ac
co
r
d
i
n
g
to
th
e
web
co
n
ten
t
ac
ce
s
s
ib
ilit
y
g
u
id
elin
es
(
W
C
AG)
,
“Web
ac
ce
s
s
ib
ilit
y
m
ea
n
s
th
at
web
s
ites
,
to
o
ls
,
an
d
tech
n
o
l
o
g
ies
ar
e
d
esig
n
ed
an
d
d
ev
el
o
p
ed
s
o
th
at
p
eo
p
le
with
d
is
ab
ilit
ies
ca
n
u
s
e
th
em
.
Mo
r
e
s
p
ec
if
ically
,
p
eo
p
le
c
an
p
er
ce
iv
e,
u
n
d
er
s
tan
d
,
n
av
ig
at
e,
an
d
i
n
ter
ac
t
with
th
e
W
eb
an
d
co
n
tr
ib
u
te
to
it.”
[
5
]
.
T
h
er
e
f
o
r
e,
ac
ce
s
s
ib
ilit
y
is
cr
u
cial
in
en
ab
lin
g
in
d
iv
id
u
a
ls
with
d
is
ab
ili
ties
,
s
u
ch
as
th
o
s
e
with
“
v
is
u
al,
h
ea
r
in
g
,
co
g
n
itiv
e
,
an
d
p
h
y
s
ical
im
p
air
m
en
ts
”
[
5
]
to
ac
ce
s
s
,
co
m
p
r
eh
e
n
d
,
n
av
ig
ate,
an
d
in
ter
ac
t
with
d
i
g
ital
co
n
ten
t
in
th
e
s
am
e
way
as
p
eo
p
le
with
o
u
t
d
is
ab
ilit
ies.
Mo
r
eo
v
er
,
th
e
UN
s
tated
th
at
ag
in
g
p
o
p
u
latio
n
s
,
p
r
o
jecte
d
to
r
ea
ch
n
ea
r
ly
2
.
1
b
illi
o
n
b
y
2
0
5
0
,
f
ac
e
r
is
in
g
d
i
s
ab
ilit
y
r
ates
(
o
v
er
4
6
%
o
f
th
o
s
e
ag
ed
6
0
an
d
o
l
d
er
)
,
d
r
iv
en
b
y
ac
cu
m
u
lated
h
ea
lth
r
is
k
s
,
n
ec
ess
itatin
g
in
t
eg
r
ated
p
o
licies
to
ad
d
r
ess
ag
in
g
an
d
d
is
ab
ilit
y
s
y
n
er
g
is
tically
[
7
]
.
Hen
ce
,
ac
ce
s
s
ib
ilit
y
h
as
b
ec
o
m
e
an
im
p
o
r
tan
t
asp
ec
t
th
at
g
o
v
er
n
m
en
ts
s
h
o
u
ld
n
o
t
n
eg
le
ct
wh
en
d
esig
n
in
g
elec
tr
o
n
ic
p
o
r
tals
to
f
ac
ilit
ate
ac
ce
s
s
to
p
r
o
v
id
ed
s
er
v
ices.
I
n
th
is
co
n
tex
t,
“Alth
o
u
g
h
W
C
AG
2
.
0
h
as
b
ee
n
p
r
o
p
o
s
ed
to
en
s
u
r
e
th
at
all
o
n
lin
e
r
eso
u
r
ce
s
/s
er
v
ices
ar
e
ac
ce
s
s
ib
le
to
p
er
s
o
n
s
with
d
is
ab
ilit
ies,
s
ev
er
al
r
esear
ch
er
s
h
av
e
n
o
ted
th
at
m
o
s
t r
em
ain
in
a
cc
ess
ib
le”
[
8
]
.
W
h
i
l
e
m
a
n
y
r
e
l
at
e
d
i
n
i
t
i
at
i
v
es
a
r
e
b
e
i
n
g
ta
k
e
n
a
c
r
o
s
s
t
h
e
w
o
r
l
d
i
n
m
a
n
y
c
o
u
n
t
r
i
es
,
l
i
t
e
r
at
u
r
e
r
e
v
i
e
ws
r
e
l
a
t
e
d
t
o
e
-
g
o
v
e
r
n
m
e
n
t
a
c
c
ess
i
b
i
li
t
y
f
o
r
p
e
o
p
l
e
w
i
t
h
d
is
a
b
il
i
t
i
es
i
n
p
a
r
t
i
c
u
la
r
a
r
e
c
u
r
r
e
n
tly
s
c
a
r
c
e
.
A
l
t
h
o
u
g
h
s
o
m
e
a
c
c
es
s
i
b
i
l
it
y
r
e
v
i
e
ws
h
a
v
e
b
e
e
n
p
u
b
l
i
s
h
e
d
,
o
n
l
y
o
n
e
s
t
u
d
y
[
8
]
h
a
s
f
o
c
u
s
e
d
o
n
t
h
e
a
c
c
e
s
s
i
b
il
i
t
y
o
f
e
-
g
o
v
e
r
n
m
e
n
t
s
e
r
v
i
c
es
f
o
r
p
e
o
p
l
e
w
i
t
h
d
is
a
b
il
i
ti
e
s
,
p
u
b
li
s
h
e
d
i
n
2
0
2
1
,
i
d
e
n
t
i
f
i
e
d
a
s
e
t
o
f
4
2
s
t
u
d
i
es
c
o
l
l
ec
t
e
d
b
e
t
w
e
e
n
2
0
1
0
a
n
d
2
0
2
0
.
T
h
e
r
e
s
u
l
t
a
n
al
y
s
i
s
p
r
o
v
i
d
e
d
s
o
m
e
i
n
s
i
g
h
ts
c
o
n
c
e
r
n
i
n
g
a
cc
e
s
s
i
b
il
i
t
y
f
a
ct
o
r
s
,
d
es
i
g
n
,
a
s
s
i
s
t
i
v
e
t
e
c
h
n
o
l
o
g
i
es
u
s
a
b
i
li
ty
,
a
n
d
t
h
e
e
v
a
l
u
a
t
i
o
n
o
f
e
-
g
o
v
e
r
n
m
e
n
t
p
o
r
t
a
l
s
.
T
h
e
a
u
t
h
o
r
s
p
e
r
f
o
r
m
e
d
t
h
i
s
l
i
t
e
r
at
u
r
e
a
n
a
l
y
s
is
u
s
i
n
g
a
t
r
a
d
i
t
i
o
n
a
l
m
e
t
h
o
d
o
l
o
g
y
a
p
p
r
o
a
c
h
,
w
i
t
h
o
u
t
u
s
i
n
g
a
r
i
g
o
r
o
u
s
a
p
p
r
o
a
c
h
s
u
c
h
a
s
t
h
a
t
p
r
o
p
o
s
e
d
b
y
K
i
t
c
h
e
n
h
a
m
'
s
g
u
i
d
e
l
i
n
es
f
o
r
c
o
n
d
u
c
t
i
n
g
s
y
s
t
em
a
t
i
c
r
e
v
i
ew
s
,
u
s
i
n
g
t
h
e
e
x
am
p
l
e
o
f
a
s
y
s
t
e
m
a
ti
c
m
a
p
p
i
n
g
s
t
u
d
y
(
S
M
S
)
[
9
]
.
F
u
r
t
h
e
r
m
o
r
e
,
g
i
v
e
n
t
h
e
r
e
l
e
v
a
n
c
e
o
f
e
-
g
o
v
e
r
n
m
e
n
t
,
H
u
m
a
n
-
C
o
m
p
u
t
e
r
I
n
t
e
r
a
c
t
i
o
n
b
e
c
o
m
e
s
i
m
p
o
r
t
a
n
t
s
i
n
c
e
it
f
o
c
u
s
e
s
o
n
t
h
e
d
es
i
g
n
a
n
d
e
v
a
l
u
a
t
i
o
n
o
f
i
n
t
e
r
a
c
ti
v
e
c
o
m
p
u
t
i
n
g
s
y
s
t
e
m
s
f
o
r
h
u
m
a
n
u
s
e
,
t
a
k
i
n
g
i
n
t
o
a
c
c
o
u
n
t
u
s
e
r
ex
p
e
r
i
e
n
c
e
,
u
s
a
b
il
i
t
y
,
c
o
g
n
it
i
v
e
a
n
d
p
h
y
s
i
c
a
l
l
i
m
it
a
t
i
o
n
s
,
a
n
d
ac
c
e
s
s
i
b
i
li
t
y
c
o
n
c
e
r
n
s
[
1
0
]
.
T
h
e
r
e
f
o
r
e
,
t
h
i
s
p
a
p
e
r
e
x
a
m
i
n
e
s
t
h
e
r
e
s
e
a
r
c
h
e
r
s
’
e
f
f
o
r
t
s
to
e
n
h
a
n
c
e
a
c
c
e
s
s
i
b
i
l
i
t
y
f
o
r
p
e
o
p
l
e
w
i
t
h
d
i
s
a
b
il
i
ti
es
i
n
e
-
g
o
v
e
r
n
m
e
n
t
p
o
r
t
a
l
s
t
h
r
o
u
g
h
S
M
S
,
a
i
m
i
n
g
t
o
s
u
m
m
a
r
i
ze
a
n
d
s
y
n
t
h
e
s
i
z
e
e
x
is
t
i
n
g
r
e
s
e
a
r
c
h
,
a
s
w
e
l
l
as
p
r
o
v
i
d
e
s
u
g
g
e
s
ti
o
n
s
f
o
r
f
u
t
u
r
e
r
e
s
ea
r
c
h
e
r
s
.
T
h
is
s
t
u
d
y
a
n
al
y
z
e
s
a
n
d
d
i
s
c
u
s
s
es
f
i
v
e
m
a
p
p
i
n
g
q
u
e
s
t
i
o
n
s
(
M
Qs
)
r
e
l
a
te
d
t
o
p
u
b
l
i
c
a
t
i
o
n
y
e
a
r
s
,
s
o
u
r
c
es
a
n
d
c
h
a
n
n
e
l
s
,
c
o
n
t
r
i
b
u
t
i
o
n
t
y
p
e
s
,
d
i
s
a
b
il
i
t
y
t
y
p
es
,
a
n
d
a
c
c
e
s
s
i
b
i
l
it
y
t
o
o
l
s
a
n
d
g
u
i
d
e
l
i
n
e
s
u
s
e
d
o
v
e
r
t
h
e
y
e
a
r
s
i
n
t
h
e
s
el
e
c
t
e
d
s
t
u
d
i
e
s
.
T
o
t
h
is
e
n
d
,
a
s
et
o
f
1
1
2
p
r
i
m
a
r
y
s
tu
d
i
e
s
wa
s
s
el
e
c
t
ed
f
r
o
m
J
a
n
u
a
r
y
2
0
0
0
t
o
M
a
r
c
h
2
0
2
5
b
a
s
e
d
o
n
f
i
v
e
d
i
g
i
t
a
l
d
a
t
a
b
a
s
es
t
o
p
r
o
v
i
d
e
a
n
s
w
e
r
s
t
o
t
h
e
M
Q
s
.
T
h
e
o
u
t
p
u
t
o
f
t
h
i
s
s
t
u
d
y
o
f
f
e
r
s
v
a
l
u
a
b
le
i
n
s
ig
h
t
s
t
o
r
e
s
e
a
r
c
h
e
r
s
e
x
p
l
o
r
i
n
g
t
h
i
s
i
n
t
e
r
d
is
c
i
p
li
n
a
r
y
t
o
p
i
c
,
e
s
p
e
c
i
a
l
l
y
w
i
t
h
i
n
t
h
e
f
i
e
l
d
s
o
f
w
e
b
a
c
c
es
s
i
b
i
l
it
y
a
n
d
H
C
I
,
a
s
w
el
l
a
s
t
o
g
o
v
e
r
n
m
e
n
t
e
n
t
it
i
es
ai
m
i
n
g
t
o
d
e
v
e
lo
p
o
r
e
n
h
a
n
c
e
t
h
e
a
c
c
e
s
s
i
b
il
i
t
y
o
f
t
h
e
i
r
p
o
r
t
al
s
,
u
l
t
i
m
a
t
el
y
f
a
c
i
li
t
a
ti
n
g
m
o
r
e
e
q
u
i
t
a
b
l
e
a
c
c
ess
t
o
o
n
l
i
n
e
p
u
b
l
i
c
s
e
r
v
i
c
es
f
o
r
i
n
d
i
v
i
d
u
a
l
s
w
i
t
h
d
is
a
b
i
li
t
ie
s
.
T
h
is
p
ap
er
is
s
tr
u
ctu
r
ed
as f
o
ll
o
ws.
Sectio
n
2
p
r
esen
ts
a
s
u
m
m
ar
y
o
f
r
elate
d
wo
r
k
.
Sectio
n
3
p
r
esen
ts
th
e
r
esear
ch
m
eth
o
d
ad
o
p
ted
to
ca
r
r
y
o
u
t
th
e
m
ap
p
in
g
s
tu
d
y
,
an
d
s
ec
tio
n
4
p
r
ese
n
ts
th
e
r
esu
lts
an
d
d
is
cu
s
s
io
n
,
as
well
as
p
r
o
v
id
e
s
im
p
licatio
n
s
f
o
r
r
esear
ch
e
r
s
an
d
th
r
ea
ts
to
th
e
v
alid
ity
o
f
th
is
s
tu
d
y
.
Fin
ally
,
s
ec
tio
n
5
p
r
esen
ts
th
e
co
n
clu
s
io
n
o
f
th
is
wo
r
k
.
2.
RE
L
AT
E
D
WO
RK
Var
io
u
s
s
t
u
d
ies
h
av
e
b
ee
n
p
u
b
lis
h
e
d
o
n
ac
ce
s
s
i
b
i
lit
y
i
n
e
-
g
o
v
e
r
n
m
e
n
t
p
o
r
tals
in
d
i
f
f
e
r
e
n
t
c
o
u
n
t
r
ies
,
s
u
c
h
as
f
o
r
J
o
r
d
a
n
[
1
1
]
,
f
o
r
L
a
tin
A
m
e
r
i
ca
[
1
2
]
,
a
n
d
f
o
r
E
c
u
ad
o
r
[
1
3
]
.
Fu
r
t
h
e
r
m
o
r
e
,
s
o
m
e
r
e
v
i
ew
s
tu
d
ies
h
a
v
e
also
b
ee
n
p
u
b
lis
h
e
d
,
w
h
e
r
e
t
h
e
s
u
m
m
ar
ize
d
c
o
n
te
x
t is p
r
ese
n
ted
i
n
T
a
b
le
1
i
n
t
er
m
s
o
f
p
u
r
p
o
s
e
,
t
y
p
e
o
f
r
e
v
i
ew
s
y
s
te
m
a
tic
lit
er
at
u
r
e
r
e
v
ie
w
(
SLR
)
,
P
r
e
f
er
r
e
d
r
e
p
o
r
ti
n
g
it
em
s
f
o
r
s
y
s
t
em
atic
r
ev
iews
an
d
m
et
a
-
an
al
y
s
es
(
PR
I
S
MA
)
,
a
n
d
s
y
s
t
em
ati
c
r
e
v
iew
(
SR
)
,
p
e
r
i
o
d
o
f
c
o
lle
cti
o
n
,
n
u
m
b
e
r
o
f
s
tu
d
ies,
an
d
y
ea
r
o
f
p
u
b
lic
ati
o
n
.
Fro
m
T
ab
le
1
,
it
ca
n
b
e
o
b
s
er
v
ed
th
at
r
elate
d
wo
r
k
co
m
p
r
is
es
a
v
ar
iety
o
f
r
ev
iew
s
tu
d
ies
th
at
in
v
esti
g
ated
d
if
f
e
r
en
t
asp
ec
ts
o
f
web
ac
ce
s
s
ib
ilit
y
u
s
in
g
v
ar
io
u
s
r
esear
ch
m
eth
o
d
s
,
in
clu
d
in
g
tr
a
d
itio
n
al
r
ev
iews,
Kitch
en
h
am
g
u
id
elin
es
f
o
r
SLR,
PR
I
SMA
f
o
r
SR
,
o
r
in
s
p
ir
e
d
b
y
SLR
(
b
y
u
s
in
g
s
o
m
e
s
tep
s
)
.
T
h
e
s
elec
ted
r
ev
iews lo
o
k
ed
in
to
d
ig
ital a
cc
ess
ib
ilit
y
,
ac
ce
s
s
ib
ilit
y
ass
ess
m
en
t m
eth
o
d
s
,
web
ac
ce
s
s
ib
ilit
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m
etr
ics,
ac
ce
s
s
ib
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o
r
p
e
o
p
le
with
d
is
ab
ilit
ies,
teler
eh
ab
ilit
atio
n
p
latf
o
r
m
s
,
etc.
I
n
ad
d
itio
n
,
s
o
m
e
s
tu
d
ies
h
av
e
f
o
cu
s
ed
o
n
ac
ce
s
s
ib
ilit
y
to
u
n
iv
er
s
ity
web
s
ites
,
e
-
g
o
v
er
n
m
en
t
s
er
v
ices,
o
r
web
ap
p
licatio
n
s
f
o
r
a
s
p
ec
if
ic
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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t J E
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&
C
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m
p
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n
g
I
SS
N:
2088
-
8
7
0
8
A
cc
ess
ib
ili
ty
in
e
-
g
o
ve
r
n
men
t
p
o
r
ta
ls
:
a
s
ystema
tic
ma
p
p
in
g
s
tu
d
y
(
Mo
h
a
mme
d
R
id
a
o
u
a
z
iz
)
359
co
u
n
tr
y
o
r
r
eg
io
n
,
o
r
b
r
o
a
d
l
y
.
Fu
r
th
er
m
o
r
e,
th
e
s
tu
d
ies
ad
d
r
ess
ed
a
wid
e
r
an
g
e
o
f
r
e
s
ea
r
ch
q
u
esti
o
n
s
o
r
asp
ec
ts
co
n
ce
r
n
in
g
m
eth
o
d
s
,
tech
n
iq
u
es,
d
o
m
ain
s
,
d
is
ab
ilit
y
ty
p
es,
tr
en
d
s
,
m
etr
ics,
g
u
id
elin
es,
laws,
s
tan
d
ar
d
s
,
ev
alu
atio
n
s
,
ass
is
ti
v
e
tech
n
o
lo
g
ies,
co
g
n
itiv
e
im
p
air
m
en
t,
co
u
n
tr
ies,
to
o
ls
,
an
d
s
o
o
n
.
Ho
wev
er
,
to
d
ate,
n
o
SMS
h
as
b
ee
n
ca
r
r
ied
o
u
t
with
a
f
o
cu
s
o
n
th
is
to
p
i
c.
Hen
ce
,
an
SMS
was
co
n
d
u
cted
in
th
is
s
tu
d
y
to
co
llect,
s
u
m
m
ar
ize,
an
d
s
y
n
t
h
esize
p
u
b
lis
h
ed
wo
r
k
o
n
th
e
ac
ce
s
s
ib
ilit
y
o
f
p
er
s
o
n
s
with
d
is
ab
ilit
ies
in
e
-
g
o
v
e
r
n
m
en
t
p
o
r
tals
.
T
ab
le
1.
Su
m
m
a
r
ized
co
n
tex
t
o
f
r
elate
d
wo
r
k
o
n
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
er
n
m
en
t
p
o
r
tals
S
t
u
d
y
ID
P
u
r
p
o
se
Ty
p
e
o
f
r
e
v
i
e
w
P
e
r
i
o
d
#
S
t
u
d
i
e
s
Y
e
a
r
o
f
P
u
b
l
i
c
a
t
i
o
n
[
1
4
]
S
t
u
d
y
e
-
g
o
v
e
r
n
me
n
t
ser
v
i
c
e
s
e
v
a
l
u
a
t
i
o
n
I
n
sp
i
r
e
d
S
L
R
2
0
0
6
-
2
0
1
6
90
2
0
1
7
[
1
5
]
Ex
p
l
o
r
e
a
c
c
e
ssi
b
i
l
i
t
y
i
n
S
a
u
d
i
w
e
b
si
t
e
s
I
n
sp
i
r
e
d
S
L
R
2
0
0
9
-
2
0
1
7
15
2
0
1
7
[
1
6
]
I
n
v
e
st
i
g
a
t
e
a
c
c
e
ssi
b
i
l
i
t
y
me
t
h
o
d
s
S
LR
2
0
1
5
-
2
0
1
8
20
2
0
1
9
[
1
7
]
Te
l
e
r
e
h
a
b
i
l
i
t
a
t
i
o
n
p
l
a
t
f
o
r
ms
P
R
I
S
M
A
S
R
1
9
9
0
-
2
0
1
9
37
2
0
1
9
[
1
8
]
D
i
g
i
t
a
l
a
c
c
e
ssi
b
i
l
i
t
y
t
o
p
i
c
s
I
n
sp
i
r
e
d
S
L
R
2
0
0
0
-
2
0
2
1
2
0
4
2
0
2
1
[
1
9
]
E
-
g
o
v
w
e
b
a
p
p
e
v
a
l
u
a
t
i
o
n
met
h
o
d
s
S
LR
2
0
1
5
-
2
0
1
9
36
2
0
2
1
[
8
]
D
i
sab
l
e
d
p
e
r
s
o
n
s’
a
c
c
e
s
si
b
i
l
i
t
y
Li
t
e
r
a
t
u
r
e
a
n
a
l
y
s
i
s
2
0
1
0
-
2
0
2
0
42
2
0
2
1
[
1
]
U
n
i
v
e
r
si
t
y
w
e
b
si
t
e
s
a
c
c
e
ss
i
b
i
l
i
t
y
S
LR
2
0
0
2
-
2
0
2
1
42
2
0
2
1
[
2
0
]
W
e
b
a
c
c
e
ss
i
b
i
l
i
t
y
m
e
t
r
i
c
s
S
LR
2
0
0
8
-
2
0
2
2
30
2
0
2
2
[
2
1
]
C
o
g
n
i
t
i
v
e
i
m
p
a
i
r
me
n
t
a
c
c
e
ss
i
b
i
l
i
t
y
P
R
I
S
M
A
S
R
2
0
0
6
-
2
0
2
1
45
2
0
2
2
3.
RE
S
E
ARCH
M
E
T
H
O
D
Fo
r
th
is
SMS,
we
ad
o
p
ted
a
r
ig
o
r
o
u
s
an
d
tr
an
s
p
ar
e
n
t
m
et
h
o
d
p
r
o
p
o
s
ed
in
[
2
2
]
a
n
d
[
2
3
]
.
Fig
u
r
e
1
s
u
m
m
ar
izes
th
e
s
tep
s
f
o
llo
we
d
,
wh
ich
ar
e:
T
h
e
s
p
ec
if
icatio
n
o
f
th
e
r
esear
ch
q
u
esti
o
n
s
,
t
h
e
d
ef
i
n
itio
n
o
f
th
e
s
ea
r
ch
s
tr
ateg
y
,
th
e
s
elec
tio
n
o
f
s
tu
d
ies,
th
e
ex
tr
ac
tio
n
o
f
d
ata,
an
d
th
e
an
aly
s
is
o
f
r
esu
lts
.
Fig
u
r
e
1
.
SMS selec
tio
n
p
r
o
ce
s
s
s
tep
s
3
.
1
.
M
a
pp
ing
qu
estio
ns
W
e
estab
lis
h
ed
f
iv
e
m
ap
p
in
g
q
u
esti
o
n
s
(
MQ
s
)
to
co
n
d
u
ct
th
is
m
ap
p
in
g
s
tu
d
y
.
T
ab
le
2
lis
ts
th
ese
MQ
s
alo
n
g
with
th
eir
r
esp
ec
ti
v
e
m
o
tiv
atio
n
s
.
T
h
e
q
u
esti
o
n
s
co
v
er
p
u
b
licatio
n
tr
en
d
s
,
r
ese
ar
ch
co
n
tr
ib
u
tio
n
s
,
d
is
ab
ilit
y
ty
p
es,
ev
alu
atio
n
t
o
o
ls
,
an
d
ac
ce
s
s
ib
ilit
y
g
u
id
elin
es r
elev
an
t to
e
-
g
o
v
er
n
m
e
n
t p
o
r
tals
.
T
ab
le
1
.
Ma
p
p
in
g
q
u
esti
o
n
s
(
MQ
s
)
ID
M
a
p
p
i
n
g
Q
u
e
st
i
o
n
s
M
o
t
i
v
a
t
i
o
n
M
Q
1
W
h
i
c
h
p
u
b
l
i
c
a
t
i
o
n
s
,
y
e
a
r
s,
c
h
a
n
n
e
l
s
,
a
n
d
s
o
u
r
c
e
s
w
e
r
e
t
h
e
t
a
r
g
e
t
s
f
o
r
se
l
e
c
t
e
d
s
t
u
d
i
e
s
?
To
e
x
a
mi
n
e
t
h
e
y
e
a
r
s,
t
h
e
c
h
a
n
n
e
l
s
,
a
s wel
l
a
s
t
h
e
t
a
r
g
e
t
s
o
u
r
c
e
s
o
f
p
u
b
l
i
c
a
t
i
o
n
s
o
f
t
h
e
s
e
l
e
c
t
e
d
st
u
d
i
e
s.
M
Q
2
W
h
a
t
t
y
p
e
s
o
f
r
e
sea
r
c
h
c
o
n
t
r
i
b
u
t
i
o
n
s
w
e
r
e
c
o
n
d
u
c
t
e
d
i
n
t
h
e
se
l
e
c
t
e
d
st
u
d
i
e
s
?
To
e
x
p
l
o
r
e
t
h
e
t
y
p
e
s
o
f
r
e
s
e
a
r
c
h
c
o
n
t
r
i
b
u
t
i
o
n
s
ma
d
e
i
n
t
h
e
se
l
e
c
t
e
d
st
u
d
i
e
s.
M
Q
3
W
h
i
c
h
t
y
p
e
s
of
d
i
s
a
b
i
l
i
t
i
e
s
w
e
r
e
d
i
sc
u
ssed
in
t
h
e
sel
e
c
t
e
d
s
t
u
d
i
e
s
?
To
i
d
e
n
t
i
f
y
t
h
e
v
a
r
i
o
u
s
t
y
p
e
s
o
f
d
i
sa
b
i
l
i
t
i
e
s
a
d
d
r
e
sse
d
i
n
t
h
e
sel
e
c
t
e
d
st
u
d
i
e
s
.
M
Q
4
W
h
a
t
t
o
o
l
s
w
e
r
e
u
t
i
l
i
z
e
d
t
o
e
v
a
l
u
a
t
e
a
c
c
e
ss
i
b
i
l
i
t
y
i
n
t
h
e
s
e
l
e
c
t
e
d
s
t
u
d
i
e
s?
To
d
e
t
e
r
m
i
n
e
t
h
e
t
o
o
l
s
e
m
p
l
o
y
e
d
f
o
r
a
ssessi
n
g
a
c
c
e
ss
i
b
i
l
i
t
y
i
n
e
-
g
o
v
e
r
n
m
e
n
t
p
o
r
t
a
l
s,
a
n
d
t
o
u
n
d
e
r
s
t
a
n
d
h
o
w
t
h
e
u
sa
g
e
o
f
t
h
e
se
t
o
o
l
s
h
a
s
e
v
o
l
v
e
d
o
v
e
r
t
i
m
e
a
c
r
o
ss
t
h
e
sel
e
c
t
e
d
st
u
d
i
e
s.
M
Q
5
W
h
i
c
h
a
c
c
e
ssi
b
i
l
i
t
y
g
u
i
d
e
l
i
n
e
s
w
e
r
e
r
e
f
e
r
e
n
c
e
d
in
t
h
e
s
e
l
e
c
t
e
d
s
t
u
d
i
e
s?
To
i
n
v
e
st
i
g
a
t
e
t
h
e
a
c
c
e
ss
i
b
i
l
i
t
y
g
u
i
d
e
l
i
n
e
s a
p
p
l
i
e
d
t
o
g
o
v
e
r
n
me
n
t
p
o
r
t
a
l
s fo
r
d
i
sa
b
l
e
d
c
i
t
i
z
e
n
s,
a
n
d
t
o
e
x
a
mi
n
e
h
o
w
t
h
e
a
d
o
p
t
i
o
n
o
f
t
h
e
se
g
u
i
d
e
l
i
n
e
s
h
a
s c
h
a
n
g
e
d
o
v
e
r
t
h
e
y
e
a
r
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
7
0
8
I
n
t J E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
:
3
5
7
-
372
360
3
.
2
.
Sea
rc
h str
a
t
eg
y
T
h
e
s
ea
r
ch
s
tr
ateg
y
c
o
n
s
is
ted
o
f
th
r
ee
m
ain
s
tep
s
: selec
tio
n
o
f
th
e
elec
tr
o
n
ic
d
atab
ase,
esta
b
lis
h
m
en
t
o
f
th
e
s
ea
r
ch
s
tr
in
g
,
an
d
ex
ec
u
tio
n
o
f
th
e
s
ea
r
ch
p
r
o
ce
s
s
.
Step
1:
Selectio
n
o
f
th
e
elec
tr
o
n
ic
d
atab
ases
.
T
h
e
I
E
E
E
x
p
lo
r
er
,
AC
M
Dig
ital
L
ib
r
ar
y
,
Sp
r
in
g
er
L
in
k
,
an
d
Scien
ce
Dir
ec
t
d
atab
ases
wer
e
s
elec
ted
f
o
r
th
is
SMS.
Go
o
g
le
Sch
o
lar
was
also
u
s
ed
f
o
r
liter
atu
r
e
s
ea
r
ch
es
d
u
e
to
its
ab
ilit
y
to
e
x
p
lo
r
e
v
ar
io
u
s
d
ig
ital
d
ata
b
ases
.
T
h
e
m
o
tiv
atio
n
b
eh
in
d
th
e
s
elec
tio
n
o
f
th
ese
d
atab
ases
wa
s
th
eir
wid
e
r
an
g
e
o
f
cr
e
d
ib
le
p
ee
r
-
r
e
v
ie
wed
s
o
u
r
ce
s
o
n
to
p
ics
r
elate
d
to
co
m
p
u
ter
s
cien
ce
,
in
f
o
r
m
atio
n
tech
n
o
lo
g
y
,
an
d
elec
tr
o
n
ic
g
o
v
er
n
m
e
n
t
.
T
h
ese
d
atab
ases
p
r
o
v
id
e
ac
c
ess
to
a
lar
g
e
co
llectio
n
o
f
ac
ad
em
ic
jo
u
r
n
als,
th
eses
,
an
d
co
n
f
er
e
n
ce
s
u
s
in
g
ad
v
an
ce
d
s
ea
r
ch
ca
p
ab
ilit
ies
th
at
allo
w
th
e
f
ilter
in
g
o
f
r
esu
lts
b
ased
o
n
a
lis
t
o
f
cr
iter
ia,
s
u
ch
as
p
u
b
licatio
n
y
ea
r
,
k
ey
wo
r
d
s
,
a
n
d
au
t
h
o
r
s
.
Fu
r
th
er
m
o
r
e
,
th
ey
ar
e
u
p
-
to
-
d
ate,
an
im
p
o
r
tan
t
elem
en
t
in
en
s
u
r
in
g
th
at
o
u
r
s
ea
r
ch
is
u
p
-
to
-
d
ate
an
d
r
elev
an
t.
Step
2:
E
s
tab
lis
h
m
en
t
o
f
th
e
s
ea
r
ch
s
tr
in
g
.
Dev
elo
p
in
g
an
e
f
f
ec
tiv
e
s
ea
r
ch
s
tr
in
g
i
n
v
o
lv
es
s
ev
er
al
s
tep
s
[
1
5
]
:
th
e
f
ir
s
t
s
tep
in
v
o
lv
es
d
e
f
in
in
g
k
ey
s
ea
r
ch
ter
m
s
th
at
a
r
e
alig
n
ed
with
th
e
m
ap
p
in
g
q
u
esti
o
n
s
.
Su
b
s
eq
u
en
tly
,
it
is
im
p
e
r
ativ
e
to
b
r
o
a
d
en
t
h
e
s
ea
r
ch
s
co
p
e
b
y
in
c
o
r
p
o
r
atin
g
s
y
n
o
n
y
m
s
a
n
d
alter
n
ativ
e
s
p
ellin
g
s
f
o
r
ea
ch
p
r
im
a
r
y
ter
m
,
th
er
e
b
y
im
p
r
o
v
in
g
th
e
r
ele
v
an
ce
o
f
o
u
tco
m
es.
T
h
e
B
o
o
l
ea
n
o
p
er
ato
r
“OR”
is
em
p
lo
y
ed
f
o
r
ea
ch
k
ey
ter
m
to
co
n
ca
ten
ate
all
th
e
id
en
tifie
d
s
y
n
o
n
y
m
s
an
d
alter
n
ativ
e
ter
m
s
an
d
th
u
s
en
s
u
r
e
th
e
r
etr
iev
al
o
f
s
tu
d
ies
co
n
tain
in
g
an
y
o
f
t
h
e
s
p
ec
if
ied
ter
m
s
.
T
h
e
B
o
o
l
ea
n
o
p
er
at
o
r
“AN
D”
is
u
s
ed
to
co
n
n
ec
t
all
th
e
m
ain
ter
m
s
in
th
e
s
ea
r
ch
s
tr
in
g
an
d
,
as
a
r
esu
lt,
g
u
ar
an
tees
th
at
th
e
r
etr
iev
ed
s
tu
d
ies
en
co
m
p
ass
all
th
e
d
ef
in
ed
k
ey
ter
m
s
.
B
ased
o
n
th
ese
s
tep
s
,
th
e
r
esu
ltin
g
s
ea
r
ch
s
tr
in
g
f
o
r
th
e
SMS
is
f
o
r
m
u
lated
a
s
f
o
llo
ws:
“
(
a
cc
ess
ib
il
ity
OR
b
a
r
r
ier*
OR
d
is
a
b
*
OR
imp
a
ir
men
t
OR
h
a
n
d
ic
a
p
*
OR
s
p
ec
ia
l
n
ee
d
*
)
A
N
D
(e
-
Go
ve
r
n
men
t
OR
elec
t
r
o
n
ic
g
o
ve
r
n
men
t
OR
e
-
g
o
v
O
R
e
-
s
ervice
OR
elec
tr
o
n
ic
s
erv
ice)
A
N
D
(
p
o
r
ta
l
OR
w
eb
s
ite
OR
s
ite
O
R
s
o
ftw
a
r
e
OR
tech
n
iq
u
e
OR
a
p
p
lica
tio
n
OR
s
ystem)
A
N
D
(
r
eq
u
ir
eme
n
t*
OR
g
u
id
elin
e
OR
s
ta
n
d
a
r
d
OR
la
w
OR
r
u
le)
”.
Step
3:
C
o
n
d
u
ctin
g
th
e
s
ea
r
c
h
p
r
o
ce
s
s
.
A
two
-
r
o
u
n
d
s
ea
r
ch
p
r
o
ce
s
s
was
p
er
f
o
r
m
e
d
f
r
o
m
J
an
u
a
r
y
2
0
0
0
to
Ma
r
ch
2
0
2
5
to
r
etr
iev
e
t
h
e
ca
n
d
id
ate
s
tu
d
ies.
Fo
r
th
e
au
to
m
atic,
a
p
r
ed
e
f
in
ed
s
ea
r
ch
s
tr
in
g
is
em
p
lo
y
ed
to
c
o
n
d
u
ct
s
ea
r
ch
es
ac
r
o
s
s
th
e
f
iv
e
ch
o
s
en
d
atab
a
s
es
an
d
r
etr
iev
e
p
o
ten
tial
s
tu
d
ies.
Fo
r
th
e
m
an
u
al
(
k
n
o
wn
b
y
r
ef
er
e
n
ce
ch
ec
k
in
g
)
:
T
o
i
d
en
tify
m
o
r
e
s
tu
d
ies
r
elev
an
t
to
th
is
to
p
ic,
r
ef
er
en
ce
s
o
f
th
e
s
tu
d
ies
wer
e
ch
ec
k
ed
to
en
s
u
r
e
th
at
th
e
s
ea
r
ch
en
co
m
p
a
s
s
ed
all
s
tu
d
ies
r
elev
an
t
to
ac
ce
s
s
ib
ilit
y
o
n
e
-
g
o
v
e
r
n
m
en
t
we
b
s
ites
.
T
h
r
o
u
g
h
o
u
t
th
e
s
ea
r
ch
,
we
o
b
s
er
v
ed
th
at
th
e
s
ea
r
ch
s
tr
in
g
was
to
o
lo
n
g
f
o
r
s
o
m
e
elec
tr
o
n
ic
d
atab
ases
.
T
o
ad
d
r
ess
th
is
lim
itatio
n
,
we
ad
ap
ted
th
e
s
ea
r
c
h
s
tr
in
g
ac
c
o
r
d
in
g
to
th
e
elec
tr
o
n
ic
d
atab
ases
u
s
ed
.
T
h
i
s
in
v
o
lv
ed
s
p
litt
in
g
th
e
e
n
tire
s
ea
r
ch
s
tr
in
g
,
co
n
d
u
ctin
g
t
h
e
s
ea
r
ch
,
an
d
m
an
u
ally
c
o
m
b
in
in
g
th
e
r
esu
lts
.
T
wo
au
th
o
r
s
p
er
f
o
r
m
ed
t
h
e
s
ea
r
ch
p
r
o
ce
s
s
,
wh
ile
th
e
r
em
ain
in
g
au
th
o
r
s
ch
ec
k
ed
th
e
r
elev
an
ce
o
f
th
e
r
etain
e
d
ca
n
d
id
ate
s
tu
d
i
es.
3
.
2
.
1
.
Study
s
elec
t
io
n
T
h
e
p
u
r
p
o
s
e
o
f
th
is
s
tep
is
to
s
elec
t
ca
n
d
id
ate
s
tu
d
ies
to
b
e
in
clu
d
e
d
in
o
r
d
er
t
o
ad
d
r
ess
th
e
MQ
s
.
T
o
ac
h
iev
e
th
is
,
ea
ch
o
f
th
e
s
elec
ted
ca
n
d
id
ate
s
tu
d
ies
was
ev
alu
ated
u
s
in
g
estab
li
s
h
ed
in
clu
s
io
n
an
d
ex
clu
s
io
n
cr
iter
ia.
I
t
s
h
o
u
l
d
b
e
n
o
ted
t
h
at
a
s
tu
d
y
was
ac
ce
p
ted
if
all
th
e
in
clu
s
io
n
cr
i
ter
ia
wer
e
m
et
an
d
r
ejec
ted
if
o
n
l
y
o
n
e
ex
clu
s
io
n
cr
iter
io
n
was a
p
p
licab
le.
T
h
e
i
n
clu
s
io
n
cr
iter
ia
(
I
C
s
)
ar
e
as f
o
llo
ws:
−
(
I
C
1
)
: Stu
d
ies s
p
ec
if
ically
p
er
tin
en
t to
th
e
ac
ce
s
s
ib
ilit
y
o
f
e
-
g
o
v
er
n
m
en
t p
o
r
tals
.
−
(
I
C
2
)
: Stu
d
ies o
n
im
p
ai
r
m
en
ts
o
r
p
e
o
p
le
with
d
is
ab
ilit
ies.
T
h
e
ex
clu
s
io
n
c
r
iter
ia
(
E
C
s
)
ar
e:
−
(
E
C
1
)
: Stu
d
ies o
n
ac
ce
s
s
ib
ilit
y
in
co
n
tex
ts
o
th
er
th
a
n
e
-
g
o
v
er
n
m
en
t p
o
r
tals
.
−
(
E
C
2
)
: Stu
d
ies p
u
b
lis
h
ed
b
ef
o
r
e
2
0
0
0
.
−
(
E
C
3
)
: Stu
d
ies n
o
t a
v
ailab
le
i
n
f
u
ll tex
t.
−
(
E
C
4
)
: Stu
d
ies n
o
t in
E
n
g
lis
h
.
−
(
E
C
5
)
: D
u
p
licate
s
tu
d
y
.
I
n
th
is
ca
s
e,
o
n
e
s
tu
d
y
is
co
n
s
id
er
ed
t
o
b
e
m
o
r
e
c
o
m
p
lete.
T
wo
in
d
e
p
en
d
e
n
t
au
t
h
o
r
s
p
er
f
o
r
m
ed
th
is
p
r
o
ce
s
s
to
o
b
tain
r
eliab
le
r
esu
lts
b
ased
o
n
th
e
s
tu
d
y
’
s
titl
es,
ab
s
tr
ac
t
s
,
an
d
k
ey
wo
r
d
s
.
I
n
ca
s
e
o
f
an
y
d
is
ag
r
ee
m
en
t,
a
m
ee
tin
g
was
h
eld
wh
er
e
th
e
two
a
u
th
o
r
s
d
i
s
cu
s
s
ed
th
e
co
n
tex
t
o
f
th
eir
c
h
o
ice
(
i.e
.
,
in
cl
u
d
e
d
o
r
ex
clu
d
ed
)
; if
n
ee
d
ed
,
th
e
f
u
ll p
ap
er
tex
t w
as a
n
aly
ze
d
an
d
d
is
cu
s
s
ed
u
n
til r
ea
ch
in
g
an
ag
r
ee
m
en
t.
3
.
2
.
2
.
Da
t
a
ex
t
ra
c
t
io
n f
o
r
m
Fo
r
ev
er
y
s
elec
ted
s
tu
d
y
,
a
d
ataset
was
co
m
p
iled
u
s
in
g
a
d
ata
ex
tr
ac
tio
n
f
o
r
m
d
esig
n
e
d
to
a
d
d
r
ess
p
r
ed
ef
in
e
d
MQ
s
.
a.
I
D
o
f
th
e
s
tu
d
y
:
T
it
le
o
f
th
e
s
tu
d
y
.
T
h
e
d
at
ab
a
s
e
f
r
o
m
w
h
ich
th
e
s
tu
d
y
wa
s
s
el
ec
ted
.
T
h
e
ex
tr
ac
to
r
’
s
n
am
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8
7
0
8
A
cc
ess
ib
ili
ty
in
e
-
g
o
ve
r
n
men
t
p
o
r
ta
ls
:
a
s
ystema
tic
ma
p
p
in
g
s
tu
d
y
(
Mo
h
a
mme
d
R
id
a
o
u
a
z
iz
)
361
b.
MQ
1
:
Pu
b
licatio
n
y
ea
r
s
.
Pu
b
li
ca
tio
n
s
s
o
u
r
ce
s
.
Pu
b
licatio
n
s
c
h
an
n
els
(
i.e
.
,
co
n
f
er
e
n
ce
s
,
jo
u
r
n
als,
ch
ap
ter
s
,
b
o
o
k
s
,
wo
r
k
s
h
o
p
s
,
a
n
d
th
eses
)
.
c.
MQ
2
:
C
o
n
tr
ib
u
t
io
n
r
e
s
e
ar
ch
ty
p
es
c
an
b
e
c
la
s
s
if
i
ed
a
s
s
o
lu
t
io
n
p
r
o
p
o
s
a
l,
ev
a
lu
a
ti
o
n
r
e
s
e
ar
ch
,
an
d
co
m
p
ar
i
s
o
n
r
e
s
ea
r
ch
,
f
o
l
lo
win
g
th
e
s
y
s
te
m
a
ti
c
m
ap
p
in
g
g
u
i
d
el
in
e
s
[
2
3
]
.
d.
MQ
3
:
Di
s
a
b
i
li
ty
ty
p
e
s
ca
n
b
e
cla
s
s
if
i
ed
in
to
th
e
f
o
ll
o
w
in
g
c
ateg
o
r
i
e
s
[
2
4
]
:
−
“Visu
al,
Ph
y
s
ical,
C
o
g
n
itiv
e
an
d
n
eu
r
o
lo
g
ical,
Au
d
ito
r
y
an
d
s
p
ee
ch
.
”
−
Oth
er
:
“
An
y
o
th
er
ty
p
e
o
f
h
ea
lth
co
n
d
itio
n
th
at
ca
n
b
e
an
o
b
s
tacle
f
o
r
th
e
u
s
er
s
to
u
s
e
th
e
p
o
r
tal,
s
u
ch
as si
tu
atio
n
al
lim
itatio
n
s
o
r
tem
p
o
r
ar
y
d
is
ab
ilit
ies,
s
u
ch
as a
b
r
o
k
e
n
ar
m
o
r
lo
s
t g
lass
es.”
−
Peo
p
le
with
d
is
ab
ilit
ies
(
PW
D)
:
W
e
ad
d
ed
t
h
is
ca
teg
o
r
y
,
wh
ich
co
n
ce
r
n
s
s
tu
d
ies
th
at
d
id
n
o
t
s
p
ec
if
y
th
e
d
is
ab
ilit
y
ty
p
e
an
d
ad
d
r
ess
ed
PW
D
in
g
en
er
al.
e.
MQ
4
:
Ac
ce
s
s
ib
il
i
ty
to
o
l
s
u
s
e
d
o
v
er
th
e
y
e
ar
s
f
o
r
ev
alu
at
io
n
p
u
r
p
o
s
e
s
o
r
co
n
f
o
r
m
ity
to
l
aw
s
o
r
s
t
an
d
ar
d
s
ca
n
b
e
cl
a
s
s
if
ied
a
s
:
So
f
tw
ar
e
(
a
n
y
s
o
f
tw
ar
e
o
r
w
eb
s
o
lu
t
io
n
,
s
u
ch
a
s
th
e
to
o
l
s
p
r
o
v
id
ed
in
[
2
5
]
)
,
o
r
T
ec
h
n
iq
u
e
(
an
y
t
ec
h
n
iq
u
e
o
r
m
eth
o
d
u
s
ed
,
s
u
ch
a
s
N
ie
l
s
en
’
s
C
h
ec
k
li
s
t
[
2
6
]
).
f.
MQ
5
:
A
cc
e
s
s
ib
i
l
ity
g
u
id
e
lin
e
s
ad
o
p
ted
in
th
e
s
el
ec
ted
s
tu
d
ie
s
an
d
th
e
ir
u
s
ag
e
o
v
er
th
e
y
ea
r
s
.
E
x
am
p
le
s
o
f
th
es
e
g
u
id
e
li
n
e
s
a
r
e
leg
al
r
eq
u
ir
em
en
t
s
th
a
t
m
an
d
a
te
ac
c
es
s
ib
i
li
ty
co
m
p
li
an
c
e
an
d
en
s
u
r
e
eq
u
al
a
cc
e
s
s
to
d
ig
it
al
co
n
t
en
t
an
d
s
er
v
ice
s
[
2
7
]
.
Sp
e
ci
f
i
c
r
eq
u
ir
e
m
en
ts
o
r
r
eg
u
l
at
io
n
s
m
u
s
t
b
e
f
o
l
lo
wed
t
o
ac
h
iev
e
ac
c
es
s
ib
il
ity
co
m
p
li
an
c
e
[
2
8
]
.
R
ec
o
m
m
en
d
at
io
n
s
an
d
b
e
s
t
p
r
ac
t
ice
s
f
o
r
d
e
s
ig
n
in
g
a
n
d
d
ev
e
lo
p
i
n
g
ac
c
es
s
ib
le
co
n
t
en
t
[
2
9
]
.
4.
RE
SU
L
T
S AN
A
L
YS
I
S
T
h
is
s
ec
tio
n
p
r
esen
ts
th
e
m
ain
r
esu
lts
o
f
th
e
m
ap
p
in
g
s
tu
d
y
.
I
t
in
clu
d
es
an
s
wer
s
to
th
e
f
iv
e
m
ap
p
in
g
q
u
esti
o
n
s
,
alo
n
g
with
an
an
al
y
s
is
o
f
th
e
f
in
d
i
n
g
s
.
T
h
e
r
esu
lts
ar
e
also
illu
s
tr
ated
u
s
in
g
f
i
g
u
r
es
an
d
tab
les
to
s
h
o
w
k
ey
tr
en
d
s
an
d
o
b
s
er
v
ati
o
n
s
.
4
.
1
.
M
a
pp
ing
re
s
ults
T
h
is
s
ec
tio
n
s
u
m
m
ar
izes
th
e
s
tu
d
y
s
elec
tio
n
r
esu
lts
an
d
r
es
p
o
n
d
s
to
ea
ch
MQ
s
.
T
h
e
s
tu
d
y
s
elec
tio
n
r
esu
lts
ar
e
s
u
m
m
ar
ized
in
Fig
u
r
e
2
.
An
in
itial
s
et
o
f
6
,
1
8
3
s
tu
d
ies
was
r
etr
iev
ed
af
ter
ap
p
ly
in
g
th
e
s
ea
r
c
h
s
tr
in
g
to
f
iv
e
d
atab
ases
.
Fro
m
th
is
p
o
o
l,
1
4
2
ca
n
d
id
ate
s
tu
d
ie
s
r
elate
d
to
th
e
s
co
p
e
o
f
th
is
SMS e
m
er
g
ed
b
ased
o
n
th
e
titl
es,
ab
s
tr
ac
ts
,
an
d
k
ey
wo
r
d
s
.
A
to
tal
o
f
9
0
s
tu
d
ie
s
wer
e
in
clu
d
ed
f
r
o
m
th
e
a
p
p
licatio
n
o
f
I
C
s
an
d
E
C
s
,
as
r
ef
lecte
d
in
th
e
n
eg
ati
v
e
ad
ju
s
tm
en
ts
o
f
a
to
tal
o
f
5
2
s
tu
d
ies
d
is
ca
r
d
ed
.
R
ef
er
e
n
c
e
ch
ec
k
in
g
r
esu
lted
in
th
e
a
d
d
itio
n
o
f
2
2
r
elev
a
n
t
s
tu
d
ies;
all
f
o
u
n
d
in
th
e
Go
o
g
le
Sch
o
lar
d
atab
ase.
T
h
e
f
i
n
al
s
elec
tio
n
r
esu
lted
i
n
1
1
2
s
tu
d
ies alig
n
e
d
with
th
is
s
tu
d
y
’
s
s
co
p
e.
Fig
u
r
e
2
.
Stu
d
y
s
elec
tio
n
r
esu
l
ts
4
.
1
.
1
.
P
ub
lica
t
io
n
y
ea
rs,
cha
nn
els,
a
nd
s
o
urce
s
T
h
e
an
aly
s
is
o
f
th
e
s
elec
ted
s
tu
d
ies
in
th
is
SMS
r
ev
ea
ls
a
d
y
n
am
ic
tr
en
d
o
v
er
th
e
y
ea
r
s
(
MQ
1
)
.
As
ca
n
b
e
o
b
s
er
v
ed
in
T
ab
le
3
,
in
th
e
ea
r
ly
2
0
0
0
s
,
in
ter
est
in
th
e
ac
ce
s
s
ib
ilit
y
o
f
e
-
g
o
v
er
n
m
en
t
web
s
ites
s
tar
ted
m
o
d
estl
y
.
T
h
e
f
ir
s
t
p
u
b
lis
h
ed
s
tu
d
y
was
in
2
0
0
2
,
f
o
llo
we
d
b
y
two
s
tu
d
ies
in
2
0
0
3
.
Su
b
s
eq
u
en
tly
,
th
er
e
was
a
s
tead
y
,
s
m
all
in
cr
ea
s
e
o
r
d
ec
r
e
ase
in
th
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
d
u
r
in
g
th
e
f
ir
s
t
d
ec
a
d
e.
Si
n
ce
2
0
1
2
,
th
er
e
h
as
b
ee
n
a
s
ig
n
if
ican
t
s
u
r
g
e
in
p
u
b
licatio
n
s
,
r
ef
lectin
g
a
s
u
b
s
tan
tial
in
cr
ea
s
e
in
atten
tio
n
to
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
e
r
n
m
en
t.
T
h
e
p
ea
k
s
wer
e
r
ea
ch
ed
in
2
0
1
3
with
eig
h
t
s
tu
d
ies,
an
d
in
2
0
1
6
a
n
d
2
0
2
0
with
1
2
an
d
1
0
s
tu
d
ies,
r
esp
ec
tiv
ely
.
Fo
r
2
0
2
1
,
2
0
2
2
,
an
d
2
0
2
3
,
t
h
er
e
was
a
d
ec
lin
e
in
th
e
n
u
m
b
e
r
o
f
s
tu
d
ies,
with
two
,
th
r
ee
,
an
d
f
o
u
r
s
tu
d
ies,
r
esp
ec
tiv
ely
.
Fin
ally
,
in
2
0
2
4
an
d
2
0
2
5
,
o
n
ly
o
n
e
s
tu
d
y
was
s
elec
ted
ea
ch
y
ea
r
.
T
h
e
d
ec
r
ea
s
e
in
t
h
e
n
u
m
b
er
o
f
s
tu
d
ies
m
ay
b
e
attr
ib
u
ted
to
o
u
r
d
ata
c
o
llectio
n
,
wh
ich
o
n
ly
s
p
an
s
u
n
til
Ma
r
ch
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
7
0
8
I
n
t J E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
:
3
5
7
-
372
362
2
0
2
5
,
a
n
d
th
u
s
d
o
es
n
o
t
en
co
m
p
ass
th
e
en
tire
ty
o
f
th
e
y
ea
r
.
I
n
ad
d
itio
n
,
it
is
wo
r
th
n
o
tin
g
th
at
th
e
p
u
b
licatio
n
p
r
o
ce
s
s
o
r
s
o
m
e
s
tu
d
ies
o
f
ten
ex
ten
d
s
b
ey
o
n
d
th
e
d
ata
co
llectio
n
p
er
io
d
,
c
o
n
tr
ib
u
tin
g
to
th
e
o
b
s
er
v
ed
lag
in
th
eir
av
ailab
ilit
y
.
T
h
e
s
o
u
r
ce
s
o
f
th
e
s
elec
ted
s
tu
d
ies
f
ell
in
t
o
two
m
ain
ch
an
n
els:
J
o
u
r
n
als
an
d
C
o
n
f
er
en
ce
s
.
J
o
u
r
n
als
ar
e
th
e
p
r
e
d
o
m
in
a
n
t
ac
c
o
u
n
tin
g
f
o
r
6
5
s
tu
d
ies,
wh
ich
in
d
icate
s
a
s
ig
n
if
ican
t
em
p
h
asis
o
n
p
u
b
lis
h
in
g
r
esear
ch
in
p
ee
r
-
r
e
v
iewe
d
ac
ad
em
ic
j
o
u
r
n
als.
C
o
n
f
er
e
n
ce
s
co
m
p
r
is
e
d
4
7
s
tu
d
ies,
o
f
f
er
in
g
r
esear
c
h
er
s
an
o
p
p
o
r
tu
n
ity
to
p
r
esen
t th
eir
f
in
d
in
g
s
an
d
p
ar
ticip
ate
in
th
e
d
is
cu
s
s
io
n
s
.
T
ab
le
3
.
Selecte
d
s
tu
d
ies p
er
p
u
b
licatio
n
y
ea
r
(
MQ
1
)
P
u
b
l
i
c
a
t
i
o
n
y
e
a
r
I
D
S
t
u
d
i
e
s
P
u
b
l
i
c
a
t
i
o
n
y
e
a
r
I
D
S
t
u
d
i
e
s
2
0
0
2
[
3
0
]
,
[
3
1
]
2
0
1
4
[
3
2
]
2003
[
3
3
]
–
[
3
8
]
2
0
1
5
[
3
9
]
–
[
4
2
]
2004
[
4
3
]
–
[
4
6
]
2
0
1
6
[
4
7
]
–
[
5
1
]
2005
[
5
2
]
–
[
5
8
]
2
0
1
7
[
5
9
]
–
[
6
4
]
2006
[
6
5
]
–
[
6
7
]
2
0
1
8
[
1
1
]
,
[
6
8
]
–
[
7
2
]
2007
[
7
3
]
–
[
7
7
]
2
0
1
9
[
1
5
]
,
[
7
8
]
–
[
8
2
]
2008
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
0
2
0
[
8
3
]
–
[
8
7
]
2009
[
5
]
,
[
8
8
]
–
[
9
0
]
2
0
2
1
[
1
2
]
,
[
9
1
]
,
[
9
2
]
2010
[
2
7
]
,
[
9
3
]
–
[
9
5
]
2
0
2
2
[
9
6
]
–
[
1
0
1
]
2011
[
2
8
]
,
[
1
0
2
]
–
[
1
0
6
]
2
0
2
3
[
1
0
]
,
[
1
0
7
]
–
[
1
1
1
]
2012
[
1
1
2
]
–
[
1
2
0
]
2
0
2
4
[
1
3
]
,
[
2
9
]
,
[
1
2
1
]
,
[
1
2
2
]
2013
[
3
0
]
,
[
3
1
]
2
0
2
5
[
1
2
3
]
,
[
1
2
4
]
T
ab
le
4
s
u
m
m
a
r
izes
th
e
p
u
b
licatio
n
s
o
u
r
ce
s
with
th
eir
c
o
r
r
esp
o
n
d
in
g
r
an
k
i
n
g
s
an
d
n
u
m
b
er
o
f
s
tu
d
ies.
T
h
ese
r
an
k
in
g
s
h
elp
p
r
o
v
id
e
an
ass
ess
m
en
t
o
f
th
e
s
ig
n
if
ican
ce
an
d
q
u
ality
o
f
co
n
f
e
r
en
ce
s
an
d
jo
u
r
n
als
in
co
m
p
u
tin
g
d
is
cip
lin
es.
J
o
u
r
n
al
r
an
k
in
g
was
p
r
o
v
id
ed
b
y
th
e
Scim
ag
o
J
o
u
r
n
al
R
an
k
in
g
(
SJ
R
)
,
wh
ich
class
if
ies
jo
u
r
n
als
u
s
in
g
f
o
u
r
q
u
ar
tiles
(
Q1
to
Q4
)
.
C
o
n
f
er
en
ce
r
a
n
k
in
g
s
ar
e
p
r
o
v
id
ed
b
y
C
o
m
p
u
tin
g
R
esear
ch
an
d
E
d
u
ca
tio
n
(
C
OR
E
)
,
in
wh
ich
co
n
f
er
e
n
ce
s
ar
e
class
if
ied
in
to
d
if
f
er
e
n
t
ca
teg
o
r
ies
(
A,
B
,
C
)
.
As
ca
n
b
e
o
b
s
er
v
ed
,
“Un
iv
e
r
s
al
Acc
ess
in
th
e
I
n
f
o
r
m
atio
n
So
ciety
”
em
e
r
g
ed
as
th
e
m
o
s
t
f
r
eq
u
e
n
tly
u
s
ed
jo
u
r
n
al,
h
o
ld
in
g
a
Q2
r
a
n
k
in
g
an
d
co
n
tr
ib
u
tin
g
1
2
%
o
f
th
e
1
1
2
s
elec
ted
s
tu
d
ies.
“Go
v
er
n
m
en
t
I
n
f
o
r
m
atio
n
Qu
ar
ter
ly
”
f
o
llo
ws
clo
s
ely
as
a
Q1
r
an
k
in
g
a
n
d
1
0
% o
f
all
t
h
e
s
elec
ted
s
tu
d
ies,
h
ig
h
lig
h
tin
g
its
p
r
o
m
in
e
n
ce
in
th
e
f
ield
.
Am
o
n
g
t
h
e
co
n
f
er
en
ce
s
,
th
e
“I
n
ter
n
atio
n
al
C
o
n
f
er
en
ce
o
n
T
h
eo
r
y
an
d
Pra
ctice
o
f
E
lectr
o
n
ic
Go
v
er
n
an
ce
”
(
I
C
E
GOV)
s
tan
d
s
o
u
t
at
th
e
to
p
o
f
th
e
co
n
f
er
en
ce
with
an
“A”
r
an
k
in
g
,
f
o
llo
we
d
b
y
t
h
e
“I
n
ter
n
atio
n
al
C
o
n
f
er
en
ce
o
n
eDe
m
o
cr
ac
y
&
eG
o
v
er
n
m
en
t”
with
a
“B”
r
an
k
in
g
,
r
ep
r
es
en
tin
g
r
esp
ec
tiv
ely
5
% a
n
d
2
% o
f
t
h
e
s
elec
ted
s
tu
d
ies.
T
h
e
u
tili
za
tio
n
o
f
t
h
ese
d
ec
en
t p
u
b
licatio
n
s
o
u
r
ce
s
u
n
d
er
s
co
r
es c
o
n
f
id
e
n
ce
in
th
e
r
elev
an
ce
o
f
t
h
e
s
elec
ted
s
tu
d
ies to
th
is
SMS sco
p
e.
T
ab
le
4
.
E
x
am
p
les o
f
u
s
ed
p
u
b
licatio
n
s
o
u
r
ce
s
(
MQ
1
)
P
u
b
l
i
c
a
t
i
o
n
so
u
r
c
e
R
a
n
k
i
n
g
S
t
u
d
i
e
s
#
o
f
S
t
u
d
i
e
s
U
n
i
v
e
r
sa
l
A
c
c
e
ss
i
n
t
h
e
I
n
f
o
r
ma
t
i
o
n
S
o
c
i
e
t
y
:
I
n
t
e
r
n
a
t
i
o
n
a
l
Jo
u
r
n
a
l
Q2
[
1
]
,
[
3
]
,
[
5
]
,
[
6
2
]
,
[
6
8
]
,
[
7
8
]
,
[
8
5
]
,
[
8
6
]
,
[
9
6
]
,
[
1
2
1
]
,
[
8
8
]
,
[
1
0
5
]
,
[
1
2
3
]
,
[
1
2
5
]
14
G
o
v
e
r
n
m
e
n
t
I
n
f
o
r
ma
t
i
o
n
Q
u
a
r
t
e
r
l
y
:
I
n
t
e
r
n
a
t
i
o
n
a
l
j
o
u
r
n
a
l
Q1
[
2
7
]
,
[
3
0
]
,
[
3
1
]
,
[
3
3
]
,
[
3
9
]
,
[
6
3
]
,
[
1
1
3
]
11
I
n
t
e
r
n
a
t
i
o
n
a
l
C
o
n
f
e
r
e
n
c
e
o
n
Th
e
o
r
y
a
n
d
P
r
a
c
t
i
c
e
o
f
E
l
e
c
t
r
o
n
i
c
G
o
v
e
r
n
a
n
c
e
A
[
5
3
]
,
[
9
3
]
,
[
1
0
2
]
,
[
1
0
3
]
6
I
n
t
e
r
n
a
t
i
o
n
a
l
C
o
n
f
e
r
e
n
c
e
o
n
e
D
e
m
o
c
r
a
c
y
&
e
G
o
v
e
r
n
me
n
t
B
[
5
0
]
,
[
7
9
]
,
[
9
2
]
,
[
6
5
]
,
[
1
0
0
]
3
Jo
u
r
n
a
l
o
f
G
o
v
e
r
n
me
n
t
I
n
f
o
r
ma
t
i
o
n
Q3
[
1
2
]
,
[
1
3
]
,
[
8
0
]
2
B
r
a
z
i
l
i
a
n
S
y
mp
o
s
i
u
m
o
n
I
n
f
o
r
m
a
t
i
o
n
S
y
st
e
ms
B
[
3
2
]
,
[
3
4
]
2
4
.
1
.
2
.
Co
ntr
ibu
t
io
n r
esea
rc
h t
y
pes
(
M
Q
2
)
Fig
u
r
e
3
p
r
esen
ts
th
e
id
en
tifie
d
co
n
tr
ib
u
tio
n
r
esear
ch
t
y
p
es
o
f
th
e
s
elec
ted
s
tu
d
ies
(
MQ
2
)
:
co
m
p
ar
is
o
n
r
esear
ch
,
e
v
alu
at
io
n
r
esear
ch
,
an
d
s
o
lu
tio
n
p
r
o
p
o
s
al
(
s
ee
Sectio
n
4
.
4
f
o
r
t
h
eir
d
escr
ip
tio
n
s
)
.
I
t
s
h
o
u
ld
b
e
n
o
ted
th
at
s
tu
d
y
[
8
9
]
p
r
esen
ted
b
o
th
an
ev
alu
atio
n
an
d
a
s
o
lu
tio
n
p
r
o
p
o
s
al.
Fu
r
th
er
m
o
r
e,
ev
alu
atio
n
r
esear
ch
em
er
g
e
d
as
th
e
m
o
s
t
p
r
ev
alen
t
ty
p
e
o
f
co
n
t
r
ib
u
tio
n
,
o
cc
u
r
r
i
n
g
9
5
tim
es.
T
h
is
h
ig
h
f
r
eq
u
e
n
cy
u
n
d
er
s
co
r
es
th
e
n
e
ed
to
e
v
alu
ate
th
e
ac
ce
s
s
ib
ilit
y
o
f
e
-
g
o
v
er
n
m
en
t
p
o
r
tals
an
d
web
s
ites
.
So
lu
tio
n
p
r
o
p
o
s
als
ac
co
u
n
ted
f
o
r
1
2
s
tu
d
ies,
in
wh
ich
th
e
au
th
o
r
s
in
v
esti
g
ated
n
ew
asp
ec
ts
r
elate
d
to
ac
ce
s
s
ib
ilit
y
.
C
o
m
p
ar
is
o
n
r
esear
ch
was th
e
l
ea
s
t f
r
eq
u
en
tly
e
n
co
u
n
ter
ed
c
o
n
tr
ib
u
tio
n
t
y
p
e,
a
p
p
ea
r
in
g
in
o
n
ly
s
ix
s
tu
d
ies.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8
7
0
8
A
cc
ess
ib
ili
ty
in
e
-
g
o
ve
r
n
men
t
p
o
r
ta
ls
:
a
s
ystema
tic
ma
p
p
in
g
s
tu
d
y
(
Mo
h
a
mme
d
R
id
a
o
u
a
z
iz
)
363
Fig
u
r
e
3
.
C
o
n
tr
i
b
u
tio
n
r
esear
c
h
ty
p
es o
f
t
h
e
s
elec
ted
s
tu
d
ies (
MQ
2
)
4
.
1
.
3
.
Dis
a
bil
it
y
t
y
pes
(
M
Q
3
)
Fig
u
r
e
4
p
r
esen
ts
a
s
u
m
m
ar
y
o
f
th
e
m
ai
n
d
is
ab
ilit
y
ty
p
es
a
d
d
r
ess
ed
in
th
e
s
elec
ted
s
tu
d
i
es
(
MQ
3
)
alo
n
g
with
th
e
co
r
r
esp
o
n
d
in
g
o
cc
u
r
r
e
n
ce
s
.
I
t
is
n
o
tewo
r
th
y
th
at
a
s
in
g
le
s
tu
d
y
m
ay
ad
d
r
e
s
s
m
u
ltip
le
ty
p
es
o
f
d
is
ab
ilit
ies,
an
d
th
e
o
cc
u
r
r
en
c
es
r
ef
lect
th
e
n
u
m
b
er
o
f
tim
es e
ac
h
d
is
ab
ilit
y
is
ad
d
r
ess
ed
ac
r
o
s
s
all
th
e
s
tu
d
ies.
I
n
g
e
n
er
al,
3
7
%
o
f
th
e
s
tu
d
i
es
f
o
cu
s
ed
o
n
d
is
ab
ilit
y
an
d
lack
ed
a
s
p
ec
if
ic
f
o
cu
s
o
n
p
ar
ticu
lar
ty
p
es
o
f
d
is
ab
ilit
y
.
On
e
s
tu
d
y
[
3
6
]
em
p
h
asized
th
e
im
p
o
r
ta
n
ce
o
f
d
e
v
elo
p
er
s
ad
d
r
ess
in
g
a
d
iv
er
s
e
r
an
g
e
o
f
d
is
ab
ilit
ies
in
d
iv
id
u
ally
.
I
t
h
ig
h
lig
h
te
d
th
at
u
s
er
s
with
d
if
f
er
en
t
d
is
ab
ilit
ies
(
s
u
ch
as
co
g
n
itiv
e,
v
is
u
al,
h
ea
r
in
g
lo
s
s
,
an
d
m
o
to
r
d
is
ab
ilit
ies)
h
av
e
d
is
tin
ct
n
ee
d
s
an
d
m
an
n
er
s
wh
en
in
ter
ac
tin
g
with
web
co
n
te
n
t.
Vis
u
al
d
is
ab
ilit
y
co
n
s
titu
tes
a
s
u
b
s
tan
tial
f
o
cu
s
,
with
1
9
%
o
f
th
e
s
tu
d
ies
f
o
c
u
s
in
g
o
n
th
is
ar
ea
.
T
h
is
em
p
h
asis
is
ju
s
tifie
d
g
iv
en
th
e
h
eig
h
ten
ed
c
h
allen
g
es
f
a
ce
d
b
y
b
lin
d
an
d
v
is
u
ally
i
m
p
air
ed
(
B
VI
)
u
s
er
s
in
web
-
b
ased
in
ter
ac
tio
n
s
co
m
p
ar
ed
with
s
ig
h
te
d
in
d
iv
i
d
u
als.
C
o
g
n
itiv
e
d
is
ab
ilit
y
wa
s
th
e
m
o
s
t
d
iv
er
s
e,
b
u
t
o
n
ly
1
2
%
o
f
th
e
s
elec
ted
s
tu
d
ies.
T
h
is
d
is
ab
ilit
y
en
c
o
m
p
ass
es
a
b
r
o
a
d
s
p
ec
tr
u
m
o
f
in
d
iv
id
u
als,
v
ar
y
i
n
g
s
ig
n
i
f
ican
tly
d
u
e
to
th
e
in
clu
s
io
n
o
f
in
d
iv
i
d
u
als
with
g
en
er
al
p
r
o
ce
s
s
in
g
d
if
f
icu
lties
s
u
ch
as
m
en
tal
r
etar
d
atio
n
an
d
b
r
ain
in
ju
r
y
[
3
6
]
.
Alth
o
u
g
h
th
e
r
e
h
as
b
ee
n
c
o
n
s
id
er
ab
le
ef
f
o
r
t
in
r
ec
en
t
y
ea
r
s
to
u
n
d
er
s
tan
d
h
o
w
p
e
o
p
le
w
ith
p
er
ce
p
tu
al
an
d
m
o
to
r
im
p
air
m
en
ts
u
s
e
co
m
p
u
ter
s
,
r
esear
ch
o
n
u
s
er
s
with
co
g
n
itiv
e
im
p
air
m
en
ts
is
r
elativ
ely
n
ew
an
d
lim
ited
[
3
6
]
.
Au
d
ito
r
y
an
d
Sp
ee
ch
d
is
ab
ilit
ies,
with
1
2
%
o
f
th
e
s
elec
ted
s
tu
d
ies,
d
em
o
n
s
tr
ate
a
co
m
m
itm
en
t
to
en
s
u
r
in
g
th
at
in
f
o
r
m
atio
n
a
n
d
co
m
m
u
n
icatio
n
ar
e
ac
ce
s
s
ib
le
to
in
d
iv
id
u
als
w
h
o
a
r
e
d
ea
f
o
r
h
a
r
d
o
f
h
ea
r
i
n
g
,
as
well
a
s
to
th
o
s
e
with
s
p
ee
ch
im
p
air
m
en
ts
.
T
h
is
f
in
d
in
g
h
ig
h
lig
h
ts
th
e
im
p
o
r
tan
ce
o
f
in
clu
s
iv
e
co
m
m
u
n
icatio
n
m
eth
o
d
s
.
Ph
y
s
ical
d
is
ab
ilit
y
,
in
1
3
%
o
f
th
e
s
elec
ted
s
tu
d
ies,
in
d
icate
s
a
co
m
m
itm
en
t
to
m
ak
in
g
p
h
y
s
ical
en
v
ir
o
n
m
e
n
ts
,
p
r
o
d
u
cts,
an
d
tec
h
n
o
lo
g
ies ac
ce
s
s
ib
le
to
in
d
iv
id
u
als with
m
o
b
ilit
y
lim
itatio
n
s
.
Fin
ally
,
7
%
o
f
th
e
s
elec
ted
s
tu
d
ies
en
co
m
p
ass
ed
d
is
ab
ilit
ies
th
at
m
ay
n
o
t
f
it
in
to
th
e
p
r
e
v
io
u
s
ly
m
en
tio
n
ed
ca
teg
o
r
ies,
s
u
ch
as b
r
o
k
en
a
r
m
s
,
as st
ated
in
a
p
r
ev
io
u
s
s
tu
d
y
[
1
1
7
]
.
Fig
u
r
e
4
.
T
y
p
e
o
f
d
is
ab
ilit
ies d
is
cu
s
s
ed
in
th
e
s
elec
ted
s
tu
d
ies (
MQ
3
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
7
0
8
I
n
t J E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
:
3
5
7
-
372
364
4
.
1
.
4
.
Acc
ess
ibi
lity
ev
a
lua
t
io
n t
o
o
ls
(
M
Q
4
)
A
s
et
o
f
4
3
to
o
ls
was
em
p
lo
y
ed
in
t
h
e
1
1
2
s
elec
ted
s
tu
d
ies
to
ass
ess
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
er
n
m
e
n
t
p
o
r
tals
(
MQ
4
)
,
m
ar
k
in
g
th
e
f
i
r
s
t
-
ev
er
u
tili
za
tio
n
o
f
ac
ce
s
s
ib
ilit
y
to
o
ls
in
liter
atu
r
e
d
atin
g
b
ac
k
to
2
0
0
2
.
E
ac
h
to
o
l
ex
h
ib
ited
v
ar
y
in
g
f
r
eq
u
e
n
cy
o
f
u
s
e.
I
t
is
im
p
o
r
tan
t
t
o
r
ec
o
g
n
ize
th
at
a
t
o
o
l
m
a
y
b
e
u
tili
ze
d
ac
r
o
s
s
m
u
ltip
le
s
tu
d
ies;
th
u
s
,
it
is
co
u
n
ted
f
o
r
ea
ch
u
s
e,
an
d
a
s
in
g
le
s
tu
d
y
m
ay
em
p
lo
y
m
u
ltip
le
to
o
ls
s
im
u
ltan
eo
u
s
ly
.
T
h
e
m
o
s
t
f
r
e
q
u
en
tly
u
s
ed
e
v
alu
atio
n
t
o
o
ls
(
i.e
.
,
th
o
s
e
u
s
ed
m
o
r
e
th
a
n
f
iv
e
tim
es),
am
o
n
g
th
em
,
“ACh
ec
k
er
”
an
d
“Wav
e
Valid
ato
r
”
s
tan
d
o
u
t w
ith
th
e
h
ig
h
est u
s
ag
e
co
u
n
t o
f
2
5
ea
c
h
.
“Bo
b
b
y
”
f
o
ll
o
ws
with
1
7
u
s
es.
“T
AW
”
to
o
l
with
1
5
u
s
es.
T
h
ese
e
v
alu
ati
o
n
to
o
ls
ar
e
p
r
o
m
in
en
t
ch
o
ic
es
f
o
r
ac
ce
s
s
ib
ilit
y
ev
alu
atio
n
o
n
e
-
g
o
v
e
r
n
m
en
t
web
s
ites
[
8
0
]
,
in
d
icatin
g
th
eir
estab
lis
h
ed
r
ep
u
tatio
n
an
d
e
f
f
ec
tiv
en
ess
in
th
is
d
o
m
ain
.
Fig
u
r
e
5
p
r
o
v
id
es
m
o
r
e
in
s
ig
h
ts
in
to
t
h
e
m
o
s
t
-
u
s
ed
ac
ce
s
s
ib
ilit
y
ev
alu
atio
n
to
o
ls
o
v
er
th
e
y
ea
r
s
.
Fo
r
in
s
tan
ce
,
th
e
“ACh
ec
k
er
”
to
o
l
u
s
ag
e
s
tar
ted
in
2
0
1
1
a
n
d
in
cr
ea
s
ed
s
tead
ily
with
a
s
ig
n
if
ican
t
p
ea
k
in
2
0
1
4
,
2
0
1
7
,
a
n
d
2
0
1
9
(
with
3
,
4
,
an
d
5
u
s
es
r
esp
ec
tiv
ely
)
.
T
h
e
“Wav
e
Valid
ato
r
”
u
s
ag
e
s
tar
ted
in
2
0
0
5
an
d
h
ad
o
cc
asio
n
al
in
cr
ea
s
es
o
v
e
r
th
e
y
ea
r
s
,
p
ea
k
i
n
g
in
2
0
1
6
an
d
2
0
2
0
with
3
an
d
4
u
s
es,
r
esp
ec
tiv
ely
.
T
o
s
u
m
m
ar
ize,
th
e
“ACh
ec
k
er
”
an
d
“Wav
e
Valid
ato
r
”
to
o
ls
h
av
e
b
ee
n
a
co
n
s
is
ten
t
ch
o
ice
o
v
er
th
e
y
ea
r
s
,
wh
ile
o
th
er
to
o
ls
,
s
u
ch
as
“Bo
b
b
y
”
an
d
“T
AW
”
h
a
v
e
s
ee
n
a
d
ec
lin
e
in
u
s
ag
e.
Var
iatio
n
s
in
to
o
l
u
s
ag
e
u
n
d
er
s
co
r
e
th
e
d
y
n
a
m
ic
n
atu
r
e
o
f
th
e
f
iel
d
,
wh
ich
is
in
f
l
u
en
ce
d
b
y
t
h
e
ev
o
lv
in
g
f
ea
tu
r
es,
s
tan
d
a
r
d
s
,
a
n
d
u
s
er
p
r
ef
er
e
n
ce
s
.
User
s
ca
n
ch
o
o
s
e
to
o
ls
b
ased
o
n
s
p
ec
if
ic
f
u
n
ctio
n
alities
o
r
c
h
an
g
in
g
r
eq
u
ir
em
en
ts
o
v
e
r
ti
m
e.
Fig
u
r
e
5
.
Occ
u
r
r
en
ce
o
f
m
o
s
t u
s
ed
ev
alu
atio
n
t
o
o
ls
in
th
e
s
e
lecte
d
s
tu
d
ies o
v
er
tim
e
(
MQ
4
)
4
.
1
.
5
.
Acc
ess
ibi
lity
g
uid
eli
ne
s
(
M
Q
5
)
Fig
u
r
e
6
p
r
o
v
id
es
a
ch
r
o
n
o
lo
g
ical
o
v
er
v
iew
o
f
t
h
e
ac
ce
s
s
ib
ilit
y
g
u
id
elin
es
ad
o
p
ted
in
th
e
9
2
s
elec
ted
s
tu
d
ies
th
at
m
en
tio
n
ed
th
e
g
u
id
elin
es
u
s
ed
(
MQ
5
)
.
A
to
tal
o
f
s
ix
d
if
f
e
r
en
t
g
u
id
elin
es
we
r
e
id
en
tifie
d
ac
r
o
s
s
th
e
s
elec
ted
s
tu
d
ies.
W
C
AG
an
d
its
v
er
s
io
n
s
,
d
ev
elo
p
ed
b
y
th
e
W
o
r
ld
W
id
e
W
eb
C
o
n
s
o
r
tiu
m
(
W
3
C
)
to
en
s
u
r
e
ac
ce
s
s
ib
le
web
co
n
ten
t
f
o
r
in
d
iv
i
d
u
als
with
d
is
ab
ilit
ies,
was
th
e
m
o
s
t
f
r
e
q
u
en
tl
y
r
e
f
er
en
ce
d
g
u
id
elin
e,
ap
p
ea
r
in
g
1
0
1
tim
es
ac
r
o
s
s
8
4
s
tu
d
ies.
T
h
e
Sectio
n
5
0
8
s
tan
d
ar
d
,
a
U.
S.
f
ed
er
al
law
r
eq
u
ir
in
g
f
e
d
er
al
ag
en
cies
to
en
s
u
r
e
th
at
th
eir
elec
tr
o
n
ic
an
d
in
f
o
r
m
atio
n
tech
n
o
lo
g
y
is
ac
ce
s
s
ib
le
to
in
d
iv
id
u
als
with
d
is
ab
ilit
ies
[
1
2
3
]
,
was
cited
1
1
tim
es
in
1
1
s
tu
d
ies.
B
r
az
il’s
E
lectr
o
n
ic
Go
v
er
n
m
e
n
t
Acc
ess
ib
ilit
y
Mo
d
el
(E
-
MA
G)
,
in
tr
o
d
u
ce
d
in
2
0
0
4
an
d
b
ased
o
n
W
C
AG
p
r
in
cip
les
[
8
1
]
,
was
u
s
ed
in
s
ix
s
tu
d
ies.
T
h
e
Gu
id
elin
es
f
o
r
I
n
d
ian
Go
v
er
n
m
en
t
W
eb
s
ites
(
GI
GW
)
,
wh
ich
co
m
b
in
e
t
h
e
W
C
AG
2
.
0
an
d
I
SO
2
3
0
2
6
s
tan
d
ar
d
s
to
d
ef
in
e
life
cy
cle
r
eq
u
ir
em
e
n
ts
f
o
r
web
s
ites
[
3
]
,
wer
e
ad
o
p
ted
th
r
ee
tim
es
in
two
s
tu
d
ies.
So
u
th
Ko
r
ea
’
s
Ko
r
ea
n
W
eb
C
o
n
ten
t
Acc
ess
ib
ilit
y
Gu
id
eli
n
es
(
KW
C
A
G)
,
d
esig
n
ed
to
p
r
o
m
o
te
u
n
iv
er
s
al
ac
ce
s
s
to
in
f
o
r
m
atio
n
,
a
p
p
ea
r
e
d
in
two
s
tu
d
ies
[
6
7
]
,
wh
ile
J
ap
an
’
s
J
ap
an
ese
I
n
d
u
s
tr
ial
Sta
n
d
ar
d
(
J
I
S
X
8
3
4
1
)
is
a
s
et
o
f
s
tan
d
ar
d
s
f
o
r
we
b
ac
ce
s
s
ib
ilit
y
in
J
ap
an
[
1
2
6
]
.
T
h
is
g
u
id
elin
e
was a
d
o
p
ted
in
o
n
ly
o
n
e
s
tu
d
y
.
T
h
e
tr
en
d
s
illu
s
tr
ated
in
Fig
u
r
e
6
r
ev
ea
l
th
at
W
C
AG
h
as
e
x
p
er
ien
ce
d
a
n
in
ter
m
itten
t
b
u
t
g
en
er
ally
g
r
o
win
g
ad
o
p
tio
n
o
v
e
r
tim
e,
with
n
o
tab
le
p
ea
k
s
in
2
0
1
3
(
n
in
e
in
s
tan
ce
s
)
,
2
0
1
6
(
1
1
in
s
tan
ce
s
)
,
an
d
2
0
2
0
(
n
in
e
in
s
tan
ce
s
)
.
I
n
co
n
tr
ast,
KW
C
AG,
GI
GW
,
E
-
MA
G,
a
n
d
Sectio
n
5
0
8
s
aw
s
p
o
r
a
d
ic
u
s
e,
an
d
J
I
S
X
8
3
4
1
ap
p
ea
r
ed
o
n
l
y
o
n
ce
,
in
2
0
0
6
.
T
h
ese
f
in
d
in
g
s
i
n
d
icate
a
d
y
n
am
ic
a
n
d
e
v
o
lv
in
g
p
atter
n
in
th
e
ad
o
p
tio
n
o
f
ac
ce
s
s
ib
ilit
y
s
tan
d
ar
d
s
.
Y
ear
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8
7
0
8
A
cc
ess
ib
ili
ty
in
e
-
g
o
ve
r
n
men
t
p
o
r
ta
ls
:
a
s
ystema
tic
ma
p
p
in
g
s
tu
d
y
(
Mo
h
a
mme
d
R
id
a
o
u
a
z
iz
)
365
Fig
u
r
e
6
.
Usag
e
o
f
g
u
id
elin
es in
th
e
s
elec
ted
s
tu
d
ies o
v
er
ti
m
e
(
MQ
5
)
5.
RE
SU
L
T
S DI
SCUS
SI
O
N
P
u
b
l
i
c
a
ti
o
n
y
e
a
r
s
,
c
h
a
n
n
e
ls
,
a
n
d
s
o
u
r
c
e
s
(
M
Q
1
)
:
T
h
e
t
r
e
n
d
i
n
t
h
e
a
c
c
e
s
s
i
b
il
i
t
y
o
f
e
-
g
o
v
e
r
n
m
e
n
t
p
o
r
t
a
l
s
d
o
e
s
n
o
t
s
t
r
i
c
tl
y
f
o
l
l
o
w
a
n
i
n
c
r
e
a
s
i
n
g
t
r
aj
e
c
t
o
r
y
i
n
T
a
b
l
e
3
.
Ho
w
e
v
e
r
,
t
h
i
s
r
e
m
a
i
n
s
a
c
o
m
p
e
l
li
n
g
a
n
d
n
o
t
e
w
o
r
t
h
y
i
s
s
u
e
.
A
l
t
h
o
u
g
h
t
h
e
n
u
m
b
e
r
o
f
p
u
b
l
i
c
a
t
i
o
n
s
h
as
s
t
e
a
d
i
l
y
i
n
c
r
e
as
e
d
o
v
e
r
t
h
e
y
e
a
r
s
,
a
p
a
r
t
i
c
u
l
a
r
ly
s
i
g
n
i
f
i
c
a
n
t
s
u
r
g
e
h
a
s
b
e
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r
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(
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–
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)
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h
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r
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n
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i
n
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a
s
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f
M
a
r
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h
2
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)
,
t
o
t
a
l
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n
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x
s
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u
d
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es
o
v
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e
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h
is
l
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e
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t
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n
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ex
p
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p
l
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a
t
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f
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r
2
0
2
5
(
s
t
i
l
l
o
n
g
o
i
n
g
)
.
F
u
r
t
h
e
r
m
o
r
e
,
t
h
e
r
e
v
i
e
w
e
d
s
t
u
d
i
es
w
e
r
e
p
u
b
l
is
h
e
d
t
h
r
o
u
g
h
t
w
o
m
a
j
o
r
c
h
a
n
n
e
l
s
:
J
o
u
r
n
a
ls
a
n
d
C
o
n
f
e
r
e
n
c
es
.
J
o
u
r
n
a
ls
,
w
i
t
h
a
m
a
j
o
r
it
y
o
f
6
5
s
t
u
d
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es
a
t
c
o
n
f
e
r
e
n
c
e
s
,
c
o
n
t
r
i
b
u
t
e
d
4
7
s
t
u
d
i
e
s
t
o
t
h
e
s
c
h
o
l
a
r
l
y
d
i
s
c
o
u
r
s
e
.
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u
r
t
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m
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r
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,
t
h
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f
in
d
i
n
g
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l
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g
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f
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c
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a
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d
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it
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ti
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c
t
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d
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e
s
i
n
T
a
b
le
4
,
w
it
h
r
a
n
k
i
n
g
s
p
r
o
v
i
d
e
d
b
y
S
J
R
a
n
d
C
OR
E
,
s
u
c
h
a
s
t
h
e
“U
n
i
v
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r
s
a
l
A
c
c
ess
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n
t
h
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I
n
f
o
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m
a
t
i
o
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o
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ie
t
y
”
a
n
d
t
h
e
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o
v
e
r
n
m
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n
t
I
n
f
o
r
m
a
t
i
o
n
Q
u
a
r
t
e
r
l
y
.
”
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n
t
e
r
m
s
o
f
c
o
n
f
e
r
e
n
c
e
s
,
t
h
e
“
I
n
t
e
r
n
at
i
o
n
a
l
C
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f
e
r
e
n
c
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T
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e
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y
a
n
d
P
r
a
c
t
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c
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f
E
l
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a
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e
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t
a
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s
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h
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t
o
p
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o
n
f
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r
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n
c
e
,
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h
e
“
I
n
t
e
r
n
at
i
o
n
a
l
C
o
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f
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r
e
n
c
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o
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De
m
o
cr
a
c
y
e
G
o
v
e
r
n
m
e
n
t
”
a
n
d
t
h
e
“
B
r
a
z
il
i
a
n
S
y
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p
o
s
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u
m
o
n
I
n
f
o
r
m
a
t
i
o
n
S
y
s
t
e
m
s
.
”
T
h
e
s
e
f
i
n
d
i
n
g
s
u
n
d
e
r
s
c
o
r
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t
h
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l
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c
e
a
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d
c
r
e
d
i
b
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l
it
y
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f
t
h
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le
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t
e
d
s
t
u
d
ie
s
w
it
h
i
n
t
h
e
s
c
o
p
e
o
f
t
h
i
s
S
MS
.
5
.
1
.
Co
ntr
ibu
t
io
n r
esea
rc
h t
y
pes
(
M
Q
2
)
T
h
e
an
aly
s
is
in
d
icate
d
th
at
a
s
ig
n
if
ican
t
p
o
r
tio
n
o
f
th
e
s
tu
d
ies
p
r
im
ar
ily
co
n
ce
n
tr
ated
o
n
ev
alu
atio
n
r
esear
ch
,
with
co
m
p
ar
ativ
ely
f
ewe
r
s
tu
d
ies
f
o
cu
s
in
g
o
n
s
o
lu
tio
n
p
r
o
p
o
s
als
an
d
co
m
p
ar
is
o
n
r
esear
ch
in
Fig
u
r
e
3
.
A
s
im
ilar
tr
en
d
was
o
b
s
er
v
ed
in
p
r
io
r
liter
atu
r
e,
wh
er
e
ev
alu
atio
n
d
o
m
in
ated
o
v
er
in
n
o
v
atio
n
[
1
]
.
W
h
ile
ev
alu
atio
n
is
ess
en
tial
f
o
r
b
en
c
h
m
ar
k
in
g
,
th
e
s
ca
r
city
o
f
s
o
lu
tio
n
-
o
r
ien
ted
s
tu
d
ies
m
ay
h
in
d
er
p
r
ac
tical
ad
v
an
ce
m
e
n
ts
.
No
n
eth
eless
,
it
is
im
p
o
r
tan
t
t
o
r
ec
o
g
n
ize
th
at
ea
ch
o
f
th
ese
co
n
tr
ib
u
tio
n
ty
p
es
h
o
l
d
s
s
ig
n
if
ican
ce
in
f
u
r
th
er
in
g
o
u
r
u
n
d
er
s
tan
d
i
n
g
o
f
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
er
n
m
en
t.
T
h
ey
co
llec
tiv
ely
co
n
tr
ib
u
te
to
o
n
g
o
in
g
ef
f
o
r
ts
to
id
en
tify
s
tr
ateg
ies
to
en
h
an
ce
web
s
ite
ac
ce
s
s
ib
ilit
y
an
d
en
s
u
r
e
d
ig
ital
in
clu
s
io
n
f
o
r
all
u
s
er
s
.
Giv
en
th
e
r
elativ
ely
lo
w
f
r
eq
u
e
n
cy
o
f
s
o
lu
tio
n
p
r
o
p
o
s
als,
it
is
r
ec
o
m
m
en
d
ed
t
h
at
r
esear
ch
er
s
an
d
g
o
v
er
n
m
en
ts
p
r
io
r
itize
co
lla
b
o
r
ativ
e
ef
f
o
r
ts
to
d
ev
elo
p
an
d
test
in
n
o
v
ativ
e
s
o
lu
tio
n
s
,
s
u
ch
as
ar
tific
ial
in
tellig
en
ce
(
AI
)
d
r
iv
en
ac
ce
s
s
ib
ilit
y
ch
ec
k
er
s
o
r
a
d
ap
tiv
e
i
n
ter
f
ac
es tailo
r
ed
to
d
iv
er
s
e
u
s
er
n
ee
d
s
.
5
.
2
.
Dis
a
bil
it
y
t
y
pes
(
M
Q
3
)
T
h
e
f
in
d
in
g
s
s
u
m
m
ar
ize
th
e
d
iv
er
s
ity
o
f
d
is
ab
ilit
y
ty
p
es
a
d
d
r
ess
ed
in
th
e
s
elec
ted
s
tu
d
ies
s
ee
in
Fig
u
r
e
4
.
A
s
tr
ik
in
g
f
in
d
in
g
was
th
at
3
7
%
o
f
s
tu
d
ies
d
id
n
o
t
s
p
ec
if
y
d
is
ab
ilit
y
ty
p
es,
o
p
tin
g
in
s
tead
f
o
r
a
g
en
er
alize
d
ap
p
r
o
ac
h
to
ac
c
ess
ib
ilit
y
.
W
h
ile
th
is
r
ef
lects
a
b
r
o
ad
co
m
m
itm
en
t
to
i
n
clu
s
iv
ity
,
it
r
is
k
s
o
v
er
lo
o
k
in
g
th
e
n
u
an
ce
d
r
e
q
u
ir
em
en
ts
o
f
s
p
ec
if
ic
u
s
er
g
r
o
u
p
s
.
Fo
r
ex
am
p
le,
v
is
u
al
im
p
air
m
en
ts
(
1
9
%
o
f
s
tu
d
ies)
r
ec
eiv
ed
co
n
s
id
er
a
b
l
e
atten
tio
n
,
lik
ely
d
u
e
to
th
e
d
ir
ec
t
im
p
ac
t
o
f
s
cr
ee
n
r
e
ad
er
s
an
d
alt
-
tex
t
co
m
p
lian
ce
.
I
n
co
n
tr
ast,
co
g
n
itiv
e
d
is
ab
ilit
ies
(
1
2
%)
wer
e
u
n
d
er
r
ep
r
esen
ted
,
d
esp
ite
t
h
eir
co
m
p
le
x
ity
an
d
d
iv
er
s
ity
(
e.
g
.
,
d
y
s
lex
ia)
.
T
h
is
m
ir
r
o
r
s
f
in
d
in
g
s
f
r
o
m
[
1
6
]
,
wh
er
e
8
0
%
o
f
s
tu
d
ies
s
im
ilar
ly
lack
ed
s
p
ec
if
icity
,
p
o
ten
tially
lead
in
g
to
h
o
m
o
g
en
ized
s
o
lu
tio
n
s
th
at
in
ad
eq
u
ately
ad
d
r
ess
th
e
s
p
ec
tr
u
m
o
f
d
is
ab
ilit
y
n
ee
d
s
.
T
h
er
ef
o
r
e,
r
esear
ch
er
s
ar
e
i
n
v
ited
to
r
ec
o
g
n
ize
th
e
d
iv
er
s
e
n
atu
r
e
o
f
d
is
ab
ilit
ies
b
y
h
ig
h
lig
h
tin
g
th
e
im
p
o
r
tan
ce
o
f
ad
d
r
ess
in
g
th
e
n
ee
d
s
o
f
s
p
ec
if
ic
g
r
o
u
p
s
in
d
iv
id
u
ally
.
Fu
tu
r
e
r
esear
ch
s
h
o
u
l
d
ad
o
p
t a
s
eg
m
en
te
d
ap
p
r
o
ac
h
,
p
r
io
r
itize
u
n
d
e
r
r
ep
r
esen
ted
d
is
ab
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ies
an
d
i
n
v
o
l
v
in
g
e
n
d
-
u
s
er
s
in
c
o
-
d
esig
n
p
r
o
ce
s
s
es
to
en
s
u
r
e
s
o
lu
tio
n
s
ad
d
r
ess
r
ea
l
-
wo
r
ld
c
h
allen
g
es.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
7
0
8
I
n
t J E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
1
6
,
No
.
1
,
Feb
r
u
ar
y
20
2
6
:
3
5
7
-
372
366
5
.
3
.
Acc
ess
ibi
lity
ev
a
lua
t
io
n
t
o
o
ls
(
M
Q
4
)
E
-
g
o
v
e
r
n
m
en
t
ac
ce
s
s
ib
ilit
y
s
tu
d
ies
r
ely
h
ea
v
ily
o
n
estab
lis
h
ed
to
o
ls
,
with
“ACh
ec
k
e
r
”
a
n
d
“Wav
e
Valid
ato
r
”
(
u
s
ed
in
2
5
s
tu
d
ies ea
ch
)
b
ein
g
th
e
m
o
s
t
f
r
e
q
u
en
t
ch
o
ices,
f
o
llo
we
d
b
y
B
o
b
b
y
,
s
ee
Fig
u
r
e
5
.
T
h
ese
to
o
ls
p
r
io
r
itize
a
u
to
m
ated
ch
e
ck
s
ag
ain
s
t
W
C
AG
s
tan
d
ar
d
s
b
u
t
r
e
q
u
ir
e
h
u
m
a
n
ju
d
g
m
en
t
t
o
in
ter
p
r
et
n
u
an
ce
d
r
esu
lts
.
T
h
is
alig
n
s
wi
th
th
e
f
in
d
in
g
s
o
f
s
tu
d
y
[
1
]
,
wh
ich
id
en
tifie
d
th
e
s
am
e
to
o
ls
as
d
o
m
in
an
t
in
u
n
iv
e
r
s
ity
web
s
ite
ev
alu
atio
n
s
,
an
d
s
tu
d
y
[
1
9
]
,
wh
ic
h
n
o
ted
th
eir
p
r
ev
alen
ce
in
e
-
g
o
v
e
r
n
m
en
t
ass
ess
m
en
ts
.
W
h
ile
to
o
ls
lik
e
“T
AW
”
r
em
ain
r
elev
an
t,
o
th
er
s
,
s
u
ch
as
“Bo
b
b
y
”
an
d
“Cy
n
th
ia
Say
s
”
h
av
e
d
ec
lin
e
d
in
u
s
e
o
v
er
tim
e,
r
ef
lectin
g
s
h
if
ts
in
to
o
l
ca
p
ab
i
liti
es
an
d
g
u
id
elin
e
u
p
d
ates
(
e
.
g
.
,
W
C
AG
2
.
2
)
.
Desp
ite
th
e
g
r
o
win
g
v
a
r
iety
o
f
to
o
ls
(
4
3
id
en
tifie
d
in
th
is
s
t
u
d
y
)
,
r
esear
ch
er
s
a
n
d
p
r
ac
titi
o
n
er
s
f
av
o
r
a
n
ar
r
o
w
s
et
o
f
tr
u
s
ted
o
p
tio
n
s
,
as
s
ee
n
in
[
1
6
]
an
d
[
2
0
]
.
L
ess
co
m
m
o
n
to
o
ls
lik
e
“Da
Sil
v
a”
o
r
“E
v
alAc
ce
s
s
”
ar
e
r
ar
el
y
ad
o
p
ted
,
ev
en
f
o
r
s
p
ec
if
ic
n
ee
d
s
.
T
o
ad
d
r
ess
th
is
lim
itatio
n
,
f
u
tu
r
e
ev
alu
atio
n
s
s
h
o
u
ld
co
m
b
i
n
e
estab
lis
h
ed
to
o
ls
(
f
o
r
r
eliab
ilit
y
)
with
s
p
ec
ialized
alter
n
ativ
es
(
e.
g
.
,
“W3
C
Valid
ato
r
”
f
o
r
m
ar
k
u
p
co
m
p
lian
ce
)
to
en
s
u
r
e
co
m
p
r
e
h
en
s
iv
e
ass
es
s
m
en
ts
.
Ad
d
itio
n
ally
,
d
ev
elo
p
in
g
a
n
in
teg
r
ated
to
o
l
th
at
m
er
g
es
au
to
m
ated
ef
f
icien
cy
with
ad
ap
tiv
e
f
ea
tu
r
es
f
o
r
d
iv
er
s
e
d
is
ab
ilit
ies
(
e.
g
.
,
co
g
n
itiv
e
im
p
air
m
en
ts
)
co
u
ld
b
r
id
g
e
g
ap
s
id
en
tifie
d
in
s
tu
d
ies
lik
e
[
2
1
]
.
Su
ch
in
n
o
v
atio
n
w
o
u
ld
r
ed
u
c
e
r
elian
ce
o
n
f
r
a
g
m
en
ted
m
et
h
o
d
s
an
d
im
p
r
o
v
e
alig
n
m
en
t
with
r
ea
l
-
wo
r
ld
u
s
er
n
ee
d
s
.
5
.
4
.
Acc
ess
ibi
lity
g
uid
eline
s
(
M
Q
5
)
T
h
e
an
al
y
s
is
o
f
e
-
g
o
v
er
n
m
e
n
t
p
o
r
tals
ac
r
o
s
s
s
tu
d
ies
r
e
v
ea
ls
a
d
etailed
p
ictu
r
e
o
f
ac
ce
s
s
ib
ilit
y
g
u
id
elin
es.
Am
o
n
g
th
ese,
W
C
AG
u
s
ag
e
was
p
r
ed
o
m
in
an
t,
with
1
0
1
o
cc
u
r
r
e
n
ce
s
,
in
d
icatin
g
its
f
o
u
n
d
atio
n
a
l
r
o
le.
Sectio
n
5
0
8
,
m
e
n
tio
n
e
d
1
1
tim
es,
em
p
h
asizes
ac
ce
s
s
ib
ilit
y
m
an
d
ates
f
o
r
US
f
ed
er
al
ag
en
cies.
T
h
ese
f
in
d
in
g
s
a
r
e
f
u
r
th
er
s
u
b
s
tan
tiated
b
y
r
esu
lts
f
r
o
m
p
r
io
r
s
y
s
tem
atic
r
ev
iews
[
1
]
,
[
1
9
]
wh
er
e
th
e
m
o
s
t
f
r
eq
u
e
n
tly
em
p
lo
y
ed
s
tan
d
ar
d
s
wer
e
als
o
W
C
AG
an
d
Sectio
n
5
0
8
.
T
h
is
alig
n
m
en
t
ac
r
o
s
s
b
o
th
e
-
g
o
v
e
r
n
m
en
t
a
n
d
ac
ad
em
ic
web
d
o
m
ain
s
p
o
in
ts
o
u
t
t
h
e
g
lo
b
al
r
ec
o
g
n
itio
n
an
d
in
s
titu
tio
n
al
r
elian
ce
o
n
W
C
AG
as
th
e
p
r
in
ci
p
al
f
r
am
ewo
r
k
f
o
r
ac
ce
s
s
ib
ilit
y
co
m
p
lian
ce
.
E
-
MA
G,
r
ef
e
r
en
ce
d
s
ix
tim
es,
alig
n
s
clo
s
ely
with
W
C
A
G
p
r
in
cip
les,
r
ef
lectin
g
B
r
az
il’s
s
tan
d
a
r
d
s
.
L
ess
er
u
s
es
wer
e
f
o
u
n
d
f
o
r
GI
GW
,
KW
C
AG,
an
d
J
I
S
X
8
3
4
1
.
Fu
r
th
er
m
o
r
e,
b
y
ex
am
in
in
g
th
e
ev
o
lv
in
g
lan
d
s
ca
p
e
in
Fig
u
r
e
6
,
a
tr
e
n
d
to
w
ar
d
s
W
C
AG
is
clea
r
,
alo
n
g
s
id
e
th
e
in
teg
r
ati
o
n
o
f
co
u
n
tr
y
-
s
p
ec
if
ic
g
u
id
elin
es
f
r
o
m
I
n
d
ia,
Ko
r
ea
,
an
d
J
ap
an
.
T
h
is
r
ef
lects
a
n
u
an
ce
d
a
p
p
r
o
ac
h
th
at
co
n
s
id
er
s
b
o
th
th
e
g
lo
b
al
an
d
r
eg
i
o
n
al
s
tan
d
ar
d
s
.
T
h
is
s
tu
d
y
h
i
g
h
lig
h
t
s
th
e
d
y
n
a
m
ic
co
m
m
itm
en
t
to
web
ac
ce
s
s
ib
ilit
y
b
y
ad
ap
tin
g
to
ev
o
lv
in
g
r
eg
u
latio
n
s
an
d
s
tan
d
ar
d
s
in
th
e
e
-
g
o
v
er
n
m
en
t
d
o
m
ain
.
T
h
ese
f
i
n
d
in
g
s
u
n
d
er
s
co
r
e
th
e
d
o
m
in
a
n
ce
o
f
W
C
AG
an
d
h
ig
h
lig
h
t
th
e
g
l
o
b
al
im
p
o
r
tan
ce
o
f
s
tan
d
ar
d
s
s
u
ch
as
Sectio
n
5
0
8
a
n
d
E
-
MA
G.
R
ec
o
m
m
en
d
atio
n
s
in
clu
d
e
c
o
n
tin
u
ed
e
m
p
h
asis
o
n
W
C
AG
co
m
p
lian
ce
,
g
r
ea
ter
ex
p
l
o
r
atio
n
o
f
em
e
r
g
in
g
s
tan
d
ar
d
s
,
an
d
th
e
n
ec
ess
ity
f
o
r
co
u
n
tr
ies
to
d
ev
elo
p
th
eir
o
wn
ac
ce
s
s
ib
ilit
y
s
tan
d
ar
d
s
o
r
laws
tailo
r
ed
to
th
eir
s
p
ec
if
icities
,
en
s
u
r
in
g
m
o
r
e
e
f
f
ec
tiv
e
en
h
an
ce
m
en
t o
f
ac
ce
s
s
ib
ilit
y
.
6.
T
H
RE
A
T
S
T
O
VAL
I
DI
T
Y
T
h
is
s
y
s
tem
atic
m
ap
p
in
g
s
tu
d
y
was
d
esig
n
ed
to
co
m
p
r
eh
en
s
iv
ely
ex
a
m
in
e
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
e
r
n
m
en
t
p
o
r
tals
.
No
n
eth
eless
,
s
ev
er
al
v
alid
ity
th
r
ea
ts
wer
e
id
en
tifie
d
an
d
a
d
d
r
ess
ed
,
in
s
p
ir
ed
b
y
s
tu
d
ies
[
2
1
]
,
[
4
7
]
,
[
1
2
7
]
.
C
o
n
s
tr
u
ct
v
alid
ity
co
n
ce
r
n
s
th
e
alig
n
m
en
t
b
etwe
en
r
esear
ch
q
u
esti
o
n
s
,
m
eth
o
d
s
,
an
d
o
b
jectiv
es;
p
o
s
s
ib
le
am
b
i
g
u
it
y
in
ac
ce
s
s
ib
ilit
y
ter
m
in
o
lo
g
y
was
m
itig
ated
b
y
d
esig
n
in
g
b
r
o
ad
s
ea
r
ch
s
tr
in
g
s
an
d
ap
p
l
y
in
g
p
r
ec
is
e
in
clu
s
io
n
an
d
e
x
clu
s
io
n
cr
iter
ia,
f
o
llo
wed
b
y
r
ef
e
r
en
ce
ch
ec
k
in
g
to
en
s
u
r
e
th
at
all
r
elev
an
t
s
tu
d
ies
wer
e
ca
p
tu
r
e
d
,
th
er
eb
y
m
ain
tain
i
n
g
co
n
s
is
ten
cy
an
d
co
v
er
ag
e
ac
r
o
s
s
d
atab
ases
.
I
n
ter
n
al
v
alid
ity
,
wh
ich
r
elate
s
to
th
e
r
eliab
ilit
y
o
f
d
ata
ex
tr
ac
tio
n
an
d
an
aly
s
is
,
was
s
tr
en
g
th
en
ed
th
r
o
u
g
h
a
r
ig
o
r
o
u
s
p
r
o
ce
s
s
b
ased
o
n
Kitch
en
h
a
m
’
s
g
u
id
elin
es,
w
h
er
e
two
au
th
o
r
s
in
d
ep
en
d
en
tly
e
x
tr
ac
ted
d
ata,
c
o
m
p
ar
e
d
r
esu
lts
,
an
d
r
eso
lv
ed
d
is
ag
r
e
em
en
ts
b
y
co
n
s
en
s
u
s
;
tr
an
s
p
ar
en
t
d
o
c
u
m
en
tatio
n
an
d
m
u
ltip
le
r
ev
iew
r
o
u
n
d
f
u
r
th
er
e
n
h
an
ce
d
th
e
ac
cu
r
ac
y
an
d
o
b
jectiv
ity
o
f
f
in
d
in
g
s
.
R
eg
ar
d
in
g
ex
ter
n
al
v
alid
ity
,
wh
ich
in
v
o
lv
es
th
e
g
en
er
aliza
b
ilit
y
o
f
r
esu
lts
,
t
h
e
f
in
d
in
g
s
wer
e
d
er
iv
e
d
f
r
o
m
p
ee
r
-
r
e
v
iewe
d
s
tu
d
ies
o
n
e
-
g
o
v
e
r
n
m
en
t
ac
ce
s
s
ib
ilit
y
,
with
d
ata
ex
tr
ac
ted
as
p
u
b
lis
h
ed
to
p
r
eser
v
e
im
p
ar
tiality
;
alth
o
u
g
h
r
eg
i
o
n
al
an
d
tem
p
o
r
al
co
v
er
ag
e
m
ay
lim
it
g
e
n
er
ali
za
tio
n
,
th
e
u
s
e
o
f
s
ev
er
al
d
a
tab
ases
r
ed
u
ce
d
th
is
ef
f
ec
t.
Fin
ally
,
co
n
clu
s
io
n
v
alid
ity
,
ad
d
r
ess
in
g
th
e
s
o
u
n
d
n
ess
o
f
in
ter
p
r
etatio
n
s
d
r
aw
n
f
r
o
m
th
e
d
ata,
was
s
u
p
p
o
r
t
ed
b
y
lim
itin
g
th
e
co
r
p
u
s
t
o
p
u
b
lis
h
ed
s
tu
d
ies
to
s
tr
en
g
th
e
n
r
eliab
ilit
y
,
wh
ile
s
tan
d
a
r
d
ized
ex
tr
ac
tio
n
f
o
r
m
s
an
d
cr
o
s
s
-
v
er
if
icatio
n
am
o
n
g
a
u
th
o
r
s
r
ein
f
o
r
ce
d
co
n
f
id
e
n
ce
in
th
e
co
n
clu
s
io
n
s
.
7.
CO
NCLU
SI
O
N
T
h
is
p
ap
er
p
r
esen
ts
th
e
r
esu
lts
o
f
a
m
ap
p
in
g
s
tu
d
y
co
n
d
u
cte
d
to
a
n
aly
ze
e
x
is
tin
g
r
esear
ch
ef
f
o
r
ts
o
n
ac
ce
s
s
ib
ilit
y
in
e
-
g
o
v
er
n
m
e
n
t
p
o
r
tals
f
o
r
d
is
ab
led
p
eo
p
le.
T
h
e
p
u
r
p
o
s
e
was
to
in
v
esti
g
a
te
th
e
ac
ce
s
s
ib
ilit
y
asp
ec
ts
ad
o
p
ted
in
e
-
g
o
v
er
n
m
en
t
p
o
r
tals
to
i
d
en
tify
th
e
ac
h
iev
em
en
ts
o
f
r
esear
ch
e
r
s
in
th
is
co
n
tex
t,
id
en
tify
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