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“
En
v
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o
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m
e
n
tal
a
wa
re
n
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ss
”
(EA)
is
a
n
imp
o
rtan
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fa
c
to
r
i
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h
e
lp
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to
e
li
m
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te
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v
iro
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m
e
n
tal
p
r
o
b
l
e
m
s
a
n
d
m
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izi
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g
i
n
d
i
v
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u
a
ls
a
n
d
c
o
m
m
u
n
it
ies
.
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h
is
st
u
d
y
a
d
d
re
ss
e
s
th
e
v
a
st
li
tera
tu
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o
n
EA
b
y
p
r
e
se
n
ti
n
g
a
b
ib
li
o
m
e
tri
c
a
n
a
ly
sis
o
f
5
6
4
EA
stu
d
ies
in
t
h
e
so
c
ial
sc
ien
c
e
c
it
a
t
io
n
i
n
d
e
x
(S
S
CI)
in
t
h
e
Web
o
f
S
c
ien
c
e
(W
o
S
)
d
a
tab
a
se
.
Th
e
stu
d
y
sta
rt
e
d
with
a
q
u
e
ry
o
f
EA
-
re
late
d
p
u
b
li
c
a
ti
o
n
s
in
th
e
Wo
S
d
a
tab
a
se
a
n
d
in
c
lu
d
e
d
a
n
e
x
p
lo
ra
ti
o
n
sta
g
e
c
o
v
e
ri
n
g
t
o
p
ic
s
su
c
h
a
s
d
istri
b
u
ti
o
n
b
y
y
e
a
rs,
m
o
st
c
it
e
d
jo
u
r
n
a
ls,
p
u
b
li
sh
i
n
g
c
o
u
n
tri
e
s
a
n
d
a
c
ti
v
e
u
n
iv
e
rsiti
e
s.
Th
e
se
c
o
n
d
sta
g
e
in
v
o
lv
e
d
t
h
e
v
is
u
a
li
z
a
ti
o
n
o
f
EA
re
se
a
rc
h
o
n
k
e
y
wo
rd
s
th
r
o
u
g
h
a
n
a
ly
sis
a
n
d
v
isu
a
l
m
a
p
s
u
si
n
g
Bi
b
li
o
sh
i
n
y
a
n
d
VO
S
v
iew
e
r
so
ftwa
re
.
Th
e
th
ird
sta
g
e
in
v
o
lv
e
s
n
a
m
in
g
th
e
c
o
n
str
u
c
ts
a
n
d
i
d
e
n
ti
f
y
in
g
th
e
ir
m
a
in
c
h
a
ra
c
teristics
.
Th
e
a
n
a
ly
sis
o
f
k
e
y
w
o
rd
s
a
n
d
th
e
c
lu
ste
r
n
a
m
e
s
m
a
d
e
in
th
e
l
ig
h
t
o
f
th
e
se
wo
rd
s
p
r
o
v
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d
e
a
b
ro
a
d
p
e
rsp
e
c
ti
v
e
o
f
EA
re
se
a
rc
h
.
Th
e
fi
n
a
l
sta
g
e
,
v
a
li
d
a
ti
o
n
,
a
ims
to
d
e
term
in
e
t
h
e
v
a
li
d
it
y
o
f
t
h
e
c
o
n
stru
c
ts
b
a
se
d
o
n
t
h
e
re
latio
n
sh
i
p
s
b
e
twe
e
n
c
o
n
c
e
p
ts.
Th
e
o
v
e
ra
ll
re
su
lt
s
o
f
th
e
st
u
d
y
sh
o
w
t
h
a
t
EA
re
se
a
rc
h
is
in
fl
u
e
n
ti
a
l
a
c
ro
ss
th
e
wo
r
ld
a
n
d
is
sh
a
p
e
d
a
ro
u
n
d
v
a
rio
u
s
th
e
m
e
s.
Th
e
id
e
n
ti
fied
th
e
m
e
s
g
u
id
e
f
u
tu
re
re
se
a
rc
h
a
n
d
p
o
li
c
y
m
a
k
in
g
b
y
e
m
p
h
a
siz
in
g
e
n
v
iro
n
m
e
n
tal
e
d
u
c
a
ti
o
n
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a
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rly
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il
d
h
o
o
d
e
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u
c
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ti
o
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a
c
ti
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lea
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n
d
in
t
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rd
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ip
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a
r
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ll
a
b
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ra
ti
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n
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K
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w
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r
d
s
:
B
ib
lio
m
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aly
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is
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ar
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T
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ay
,
th
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g
r
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win
g
en
v
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m
en
tal
cr
is
is
p
o
s
es
a
g
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win
g
th
r
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to
th
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well
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m
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d
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th
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ld
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is
s
u
es
ar
e
h
av
i
n
g
d
ir
ec
t
n
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ativ
e
e
f
f
ec
ts
o
n
liv
in
g
s
tan
d
ar
d
s
,
an
d
th
e
well
-
b
ein
g
o
f
th
e
e
n
v
ir
o
n
m
en
t.
T
h
ese
p
r
o
b
lem
s
ar
e
e
m
er
g
in
g
as
co
m
p
lex
an
d
in
t
er
co
n
n
ec
ted
th
r
ea
ts
s
h
ap
ed
b
y
s
o
cio
ec
o
n
o
m
ic
f
a
cto
r
s
.
T
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e
u
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en
c
y
o
f
ad
d
r
e
s
s
in
g
th
ese
ch
allen
g
es
is
r
aisi
n
g
en
v
ir
o
n
m
en
tal
awa
r
en
ess
(
E
A)
an
d
s
tim
u
latin
g
s
cien
tific
r
esear
c
h
.
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A
p
la
y
s
a
v
ital r
o
le
in
en
a
b
lin
g
i
n
d
i
v
id
u
als
an
d
s
o
cieties
to
u
n
d
e
r
s
tan
d
en
v
ir
o
n
m
e
n
tal
p
r
o
b
lem
s
an
d
d
ev
elo
p
ef
f
ec
tiv
e
r
esp
o
n
s
es.
T
h
e
r
elatio
n
s
h
ip
b
etwe
en
en
v
ir
o
n
m
e
n
tal
is
s
u
es
an
d
E
A
is
co
m
p
lex
an
d
m
u
ltid
im
en
s
io
n
al.
E
A
in
clu
d
es
k
n
o
wled
g
e
o
f
en
v
ir
o
n
m
en
tal
p
r
o
b
lem
s
,
r
ec
o
g
n
itio
n
o
f
th
eir
im
p
ac
ts
an
d
r
esp
o
n
s
ib
ilit
y
f
o
r
f
in
d
in
g
s
o
lu
tio
n
s
.
E
n
h
an
ce
d
EA
in
s
p
ir
es
co
m
m
itm
en
t
to
war
d
s
m
itig
atin
g
th
e
ef
f
ec
ts
o
f
en
v
ir
o
n
m
e
n
tal
ch
allen
g
es
an
d
co
p
in
g
s
tr
ateg
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to
t
h
e
ch
a
n
g
i
n
g
en
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o
n
m
en
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Peo
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its
with
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co
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I
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2
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A
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7
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e
e
x
is
ten
ce
o
f
th
e
h
u
m
an
r
ac
e.
E
A
is
o
n
e
o
f
th
e
im
p
o
r
tan
t
f
o
r
ce
s
th
at
m
o
ti
v
ates
p
eo
p
le
an
d
co
m
m
u
n
ities
to
b
ec
o
m
e
awa
r
e
o
f
th
e
is
s
u
es
th
at
p
o
s
e
r
is
k
s
to
th
e
en
v
ir
o
n
m
en
t
a
n
d
m
o
tiv
ate
s
th
em
to
tak
e
s
tep
s
to
war
d
s
m
itig
atin
g
s
u
ch
r
is
k
s
[
8
]
–
[
1
0
]
.
Scien
tific
in
q
u
ir
y
is
f
u
n
d
am
e
n
tal
in
p
r
o
g
n
o
s
is
o
f
th
e
p
r
o
b
lem
s
r
eg
a
r
d
in
g
th
e
e
n
v
ir
o
n
m
en
t,
th
e
in
f
lu
en
ce
o
f
s
u
c
h
p
r
o
b
lem
s
,
an
d
th
e
lo
o
k
in
g
f
o
r
th
e
way
o
u
t
o
f
s
u
c
h
d
ilem
m
as
[
1
1
]
–
[
1
5
]
.
T
h
e
d
e
v
elo
p
m
en
t
o
f
th
e
r
esear
ch
a
r
e
a
o
u
tco
m
es
h
ea
v
ily
ass
is
ts
in
d
ev
elo
p
in
g
a
n
d
e
n
h
an
cin
g
EA
,
m
o
tiv
atin
g
th
e
citi
ze
n
’
s
s
u
p
p
o
r
t
f
o
r
t
h
e
en
v
ir
o
n
m
en
tal
p
o
licies,
an
d
ac
h
iev
in
g
th
e
g
o
als o
f
s
u
s
tain
ab
ilit
y
[
1
6
]
–
[
2
1
]
.
T
h
is
r
esear
ch
aim
s
to
p
r
esen
t
a
b
ib
lio
m
etr
ic
an
al
y
s
is
o
f
s
cien
tific
p
u
b
licatio
n
s
in
t
h
e
f
ield
o
f
E
A
in
th
e
s
o
cial
s
cien
ce
citatio
n
in
d
ex
(
SS
C
I
)
in
d
ex
in
t
h
e
W
eb
o
f
Scien
ce
(
W
o
S
)
d
atab
ase.
T
h
is
ev
alu
atio
n
will
en
h
an
ce
co
m
p
r
e
h
en
s
io
n
r
e
g
ar
d
in
g
s
cien
tific
ev
o
lu
tio
n
,
s
h
if
ts
in
p
u
b
licatio
n
p
atter
n
s
an
d
ce
n
tr
al
in
d
iv
id
u
als
f
o
cu
s
in
g
o
n
th
e
a
r
ea
o
f
E
A.
F
u
r
th
er
m
o
r
e,
th
is
b
ib
lio
m
etr
ic
a
n
aly
s
is
will
as
s
is
t
w
ith
th
e
ev
o
lu
tio
n
an
d
f
o
cu
s
o
f
r
esear
ch
in
th
e
a
r
ea
o
f
E
A.
T
h
is
s
tu
d
y
aim
s
to
h
ig
h
lig
h
t
s
ig
n
if
ican
t
tr
en
d
s
an
d
n
o
ticea
b
l
e
ar
ea
s
o
f
r
esear
c
h
ac
h
iev
em
en
ts
with
in
th
e
s
co
p
e
o
f
E
A
an
d
will
in
f
o
r
m
f
u
t
u
r
e
s
tu
d
ies.
Mo
r
eo
v
er
,
th
er
e
is
i
n
th
e
liter
atu
r
e
o
n
E
A,
an
d
h
o
w
v
ar
ied
th
at
liter
a
tu
r
e
is
,
ca
n
h
elp
d
ev
elo
p
b
etter
ap
p
r
o
ac
h
es to
tack
le
en
v
ir
o
n
m
en
tal
is
s
u
es.
B
ib
lio
m
etr
ic
an
aly
s
is
o
f
E
A
r
esear
ch
h
elp
s
u
s
u
n
d
er
s
tan
d
t
h
e
g
r
o
win
g
co
m
p
lex
ity
o
f
en
v
ir
o
n
m
en
tal
p
r
o
b
lem
s
an
d
h
ig
h
lig
h
ts
th
e
r
o
le
th
at
s
cien
tific
r
esear
ch
p
la
y
s
in
ad
d
r
ess
in
g
th
em
[
2
2
]
,
[
2
3
]
.
T
h
is
o
f
f
er
s
th
e
p
o
ten
tial
to
d
ev
elo
p
m
o
r
e
ef
f
ec
tiv
e
s
tr
ateg
ies
f
o
r
s
o
lv
in
g
en
v
ir
o
n
m
en
tal
p
r
o
b
lem
s
.
E
A
r
esear
ch
p
r
o
m
o
tes
p
u
b
lic
awa
r
e
n
ess
o
f
en
v
ir
o
n
m
en
tal
p
r
o
b
lem
s
an
d
e
n
co
u
r
a
g
e
s
ac
tio
n
to
tack
le
t
h
em
.
I
t
s
tr
e
s
s
es
th
e
p
o
in
t
th
at
s
u
ch
in
v
esti
g
atio
n
s
also
s
er
v
e
to
im
p
r
o
v
e
t
h
e
en
v
ir
o
n
m
e
n
tal
p
o
licies
an
d
p
r
ac
tice
im
p
lem
e
n
tatio
n
.
An
aly
zin
g
ca
u
s
es
o
f
th
ese
s
cien
tific
co
n
tr
ib
u
tio
n
s
h
elp
s
u
s
in
t
h
e
f
o
llo
win
g
.
I
t
s
h
o
ws
th
e
k
in
d
o
f
r
esear
ch
ca
r
r
ied
o
u
t
with
in
E
A
in
to
p
ical
ter
m
s
a
n
d
in
wh
at
ar
ea
s
.
T
h
is
,
in
tu
r
n
,
r
elate
s
t
o
th
e
u
n
d
er
s
tan
d
i
n
g
o
f
th
e
asp
ec
ts
o
f
f
o
cu
s
f
o
r
t
h
e
f
u
tu
r
e.
I
t
also
d
e
ter
m
in
es
th
e
m
ain
au
th
o
r
s
wo
r
k
in
g
in
th
e
g
iv
en
d
o
m
ain
as
well
as
th
e
ar
ticles
with
wid
er
r
ea
ch
.
T
h
is
h
elp
s
u
s
in
d
eter
m
in
in
g
wh
o
ar
e
th
e
ex
p
er
ts
an
d
lead
in
g
r
esea
r
ch
in
th
e
f
ield
.
I
t
in
d
icate
s
th
e
co
u
n
tr
ies
an
d
in
s
titu
tio
n
s
th
at
ar
e
m
o
s
t
ac
tiv
e
a
n
d
p
r
o
d
u
ctiv
e
in
th
e
E
A
r
esear
ch
.
T
h
is
ass
is
t
s
in
p
ar
tn
er
s
h
ip
f
o
r
m
atio
n
a
n
d
m
o
r
e
ef
f
icien
t
allo
ca
tio
n
o
f
r
eso
u
r
ce
s
.
Ap
p
r
ec
iatin
g
th
e
s
co
p
e
a
n
d
h
eter
o
g
en
eity
o
f
ex
is
tin
g
s
cien
tific
wo
r
k
o
n
E
A
allo
ws
f
o
r
an
en
h
an
ce
d
en
g
ag
em
en
t
o
f
r
esear
c
h
er
s
in
th
e
f
ield
an
d
m
an
y
b
en
ef
its
to
ar
is
e
o
u
t
o
f
th
is
en
g
ag
em
en
t.
Ass
ess
m
en
t
f
in
d
in
g
s
also
s
h
ap
e
th
e
ag
en
d
a
f
o
r
f
o
r
war
d
lo
o
k
in
g
E
A
s
tu
d
ies.
T
h
ey
s
p
ec
if
y
wh
at
r
a
n
g
e
o
f
is
s
u
es
r
eq
u
ir
es
m
o
r
e
at
ten
tio
n
,
wh
ich
g
eo
g
r
ap
h
ical
a
r
ea
s
ar
e
to
b
e
g
i
v
en
m
o
r
e
in
ter
est an
d
wh
at
ap
p
r
o
a
ch
es a
r
e
th
e
m
o
s
t f
r
u
itfu
l.
Ov
er
all,
th
is
b
ib
lio
m
etr
ic
ass
e
s
s
m
en
t u
n
d
er
s
co
r
es th
e
n
ec
ess
ity
o
f
em
b
ar
k
in
g
o
n
r
esear
ch
with
r
esp
ec
t
to
E
A
an
d
h
elp
s
o
n
e
c
o
m
p
r
e
h
en
d
s
cien
tific
ad
v
an
ce
m
en
t
in
s
u
ch
r
esear
ch
an
d
d
ir
ec
t
f
u
tu
r
e
ef
f
o
r
ts
o
u
t
o
f
it.
T
h
is
s
tu
d
y
ca
n
b
e
a
v
alu
ab
le
r
eso
u
r
ce
f
o
r
r
esear
ch
er
s
,
p
o
licy
m
ak
er
s
an
d
t
h
e
p
u
b
lic
wh
o
wa
n
t to
co
n
tr
i
b
u
te
to
a
d
d
r
ess
in
g
en
v
ir
o
n
m
en
tal
is
s
u
es a
n
d
r
aisi
n
g
E
A.
T
h
e
o
v
e
r
all
aim
o
f
th
is
s
tu
d
y
is
to
co
n
d
u
ct
a
b
i
b
lio
m
etr
ic
a
n
aly
s
is
o
f
s
cien
tific
r
esear
ch
i
n
th
e
f
ield
o
f
E
A
an
d
to
u
n
d
e
r
s
tan
d
th
e
s
cien
tific
d
ev
elo
p
m
en
ts
in
th
is
f
ield
.
I
n
th
is
way
,
it
h
ig
h
lig
h
ts
th
e
s
cien
tifi
c
co
n
tr
ib
u
tio
n
s
in
th
is
f
ield
,
wh
ich
aim
s
to
co
n
tr
ib
u
te
to
th
e
u
n
d
er
s
tan
d
in
g
o
f
e
n
v
ir
o
n
m
en
tal
p
r
o
b
lem
s
,
th
e
ass
es
s
m
en
t
o
f
th
eir
im
p
ac
ts
an
d
th
e
d
ev
elo
p
m
en
t
o
f
s
o
lu
tio
n
s
.
I
n
o
r
d
e
r
to
r
ea
lize
th
e
g
en
er
al
o
b
jectiv
e
o
f
th
e
r
esear
ch
,
th
e
f
o
llo
win
g
s
p
ec
if
i
c
o
b
jectiv
es o
f
th
e
s
tu
d
y
will b
e:
-
I
d
en
tify
p
u
b
licatio
n
tr
en
d
s
o
f
E
A
r
esear
ch
:
a
n
aly
ze
th
e
p
u
b
licatio
n
tr
en
d
s
o
f
s
cien
tific
r
esear
ch
o
n
E
A
f
r
o
m
p
ast to
p
r
esen
t a
n
d
id
en
ti
f
y
h
o
w
t
h
ese
tr
en
d
s
h
av
e
ch
an
g
ed
.
-
I
d
en
tify
th
e
m
o
s
t
cited
ar
ticl
es
an
d
lead
in
g
r
esear
ch
er
s
:
i
d
en
tify
th
e
m
o
s
t
cited
ar
ticles
an
d
lead
in
g
r
esear
ch
er
s
in
th
e
f
ield
o
f
E
A
.
-
I
d
en
tify
k
e
y
to
p
ics
an
d
f
o
ca
l
p
o
in
ts
:
i
d
en
tify
th
e
k
ey
to
p
ic
s
an
d
f
o
ca
l
p
o
in
ts
o
f
th
e
f
ield
an
d
d
eter
m
in
e
wh
ich
to
p
ics r
ec
eiv
e
th
e
m
o
s
t
atten
tio
n
an
d
r
esear
ch
.
-
I
d
en
tify
th
e
m
o
s
t
p
r
o
d
u
ctiv
e
co
u
n
t
r
ies
an
d
i
n
s
titu
tio
n
s
:
i
d
en
tify
t
h
e
m
o
s
t
p
r
o
d
u
ctiv
e
co
u
n
t
r
ies
an
d
im
p
o
r
tan
t in
s
titu
tio
n
s
in
th
e
f
i
eld
o
f
E
A
r
esear
c
h
.
-
U
n
d
er
s
tan
d
th
e
s
ize
an
d
d
iv
e
r
s
ity
o
f
th
e
s
cien
tific
liter
atu
r
e:
u
n
d
e
r
s
tan
d
th
e
s
ize
an
d
d
iv
er
s
ity
o
f
th
e
s
cien
tific
liter
atu
r
e
o
n
E
A
.
-
P
r
o
v
id
in
g
g
u
id
a
n
ce
f
o
r
f
u
tu
r
e
r
esear
ch
:
b
ased
o
n
th
e
r
esu
lt
s
o
f
th
e
r
esear
ch
,
p
r
o
v
id
e
g
u
id
an
ce
f
o
r
f
u
tu
r
e
r
esear
ch
in
th
e
f
ield
o
f
E
A.
T
h
is
s
tu
d
y
aim
s
to
co
m
p
r
e
h
en
s
iv
ely
ex
am
in
e
th
e
d
ev
e
lo
p
m
en
t,
m
ain
tr
e
n
d
s
an
d
i
n
f
lu
en
tial
co
n
tr
ib
u
tio
n
s
in
th
e
f
ield
b
y
an
aly
z
in
g
th
e
s
cien
tific
lite
r
atu
r
e
in
th
e
f
ield
o
f
E
A
t
h
r
o
u
g
h
b
ib
lio
m
etr
ic
m
eth
o
d
s
.
T
h
r
o
u
g
h
th
e
an
aly
s
is
o
f
p
u
b
licatio
n
s
in
d
ex
ed
i
n
th
e
W
o
S
d
atab
ase,
p
u
b
licatio
n
tr
en
d
s
in
E
A
r
esear
ch
,
th
e
m
o
s
t
cited
s
tu
d
i
es,
lead
in
g
r
esear
ch
er
s
,
an
d
th
e
m
o
s
t
p
r
o
d
u
ctiv
e
co
u
n
tr
ies
an
d
in
s
titu
tio
n
s
ar
e
id
en
tifie
d
.
T
h
e
o
r
ig
in
al
co
n
tr
ib
u
tio
n
o
f
th
e
s
tu
d
y
is
to
p
r
o
v
id
e
a
s
y
s
tem
atic
m
ap
p
in
g
o
f
th
e
f
ield
o
f
E
A
r
esear
ch
,
h
ig
h
lig
h
tin
g
im
p
o
r
ta
n
t
d
ev
elo
p
m
en
ts
in
th
e
f
ield
an
d
g
u
i
d
in
g
f
u
tu
r
e
r
esear
ch
.
T
h
is
an
aly
s
is
s
h
ed
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
2
5
2
-
8
8
2
2
I
n
t
J
E
v
al
&
R
es E
d
u
c
,
Vo
l
.
14
,
No
.
3
,
J
u
n
e
20
25
:
1
7
8
0
-
1
7
8
9
1772
lig
h
t
o
n
th
e
cu
r
r
en
t
s
tate
a
n
d
h
is
to
r
ical
d
ev
elo
p
m
en
t
o
f
E
A
r
esear
ch
an
d
p
r
o
v
id
es
s
t
r
ateg
ic
g
u
id
an
ce
to
s
tak
eh
o
ld
er
s
aim
in
g
to
r
aise
EA
an
d
p
r
o
v
id
e
e
f
f
ec
tiv
e
s
o
lu
ti
o
n
s
to
g
lo
b
al
en
v
ir
o
n
m
e
n
tal
p
r
o
b
lem
s
.
2.
M
E
T
H
O
D
T
h
is
r
esear
ch
was
co
n
d
u
cted
u
s
in
g
th
e
W
o
S
d
atab
ase
to
p
er
f
o
r
m
a
b
ib
lio
m
etr
ic
an
aly
s
is
o
f
s
cien
tific
p
u
b
licatio
n
s
in
th
e
f
ield
o
f
E
A.
W
o
S
d
atab
ase
was
u
s
ed
in
th
e
tex
t
m
i
n
in
g
ap
p
licatio
n
r
e
lated
to
E
A.
O
n
e
o
f
th
e
in
d
icato
r
s
o
f
s
cien
tific
p
r
o
d
u
ctiv
ity
am
o
n
g
v
ar
io
u
s
co
u
n
tr
ies
is
in
ter
n
atio
n
al
p
u
b
licatio
n
s
.
T
h
e
in
d
e
x
es
o
f
p
u
b
licatio
n
s
co
n
s
titu
te
an
im
p
o
r
tan
t
d
ata
in
d
eter
m
in
in
g
t
h
e
q
u
ality
.
W
o
S
co
n
s
is
ts
o
f
s
ix
o
n
lin
e
d
atab
ases
,
o
n
e
o
f
wh
ich
is
SS
C
I
.
Pu
b
lic
atio
n
s
r
elate
d
to
E
A
ar
e
in
d
ex
ed
in
SS
C
I
.
T
h
e
m
ain
r
ea
s
o
n
f
o
r
ch
o
o
s
in
g
th
e
W
o
S
d
atab
ase
is
th
at
th
e
VO
Sv
iewe
r
an
d
B
ib
lio
s
h
in
y
p
r
o
g
r
am
s
an
aly
ze
o
n
ly
W
o
S,
Sc
o
p
u
s
,
a
n
d
Pu
b
Me
d
d
atab
ase
f
iles
.
2
.
1
.
Resea
rc
h desi
g
n
T
h
is
r
esear
ch
ad
o
p
ts
a
m
eth
o
d
o
lo
g
y
c
o
n
s
is
tin
g
o
f
f
o
u
r
m
ai
n
s
tag
es.
I
n
th
e
f
ir
s
t
s
tag
e,
“
ex
p
lo
r
atio
n
”
,
th
e
W
o
S
d
atab
ase
is
q
u
er
ied
f
o
r
p
u
b
licatio
n
s
r
elate
d
to
E
A.
I
n
th
is
s
tag
e,
t
h
e
d
is
tr
ib
u
tio
n
o
f
E
A
p
u
b
licatio
n
s
b
y
y
ea
r
s
,
th
e
m
o
s
t
cited
jo
u
r
n
als,
th
e
co
u
n
t
r
ies
with
th
e
m
o
s
t
p
u
b
licatio
n
s
,
an
d
ac
tiv
e
u
n
iv
e
r
s
ities
ar
e
s
ca
n
n
ed
.
T
h
e
s
ec
o
n
d
s
tag
e
is
“
v
is
u
aliza
tio
n
”
.
B
ib
lio
m
etr
i
x
(
B
ib
lio
s
h
in
y
)
R
p
r
o
g
r
a
m
m
in
g
lan
g
u
a
g
e
an
d
VOSv
iewe
r
s
o
f
twar
e
wer
e
u
s
ed
f
o
r
a
n
aly
s
is
an
d
v
is
u
al
m
a
p
s
wer
e
c
r
ea
ted
.
An
aly
s
is
an
d
v
is
u
aliza
tio
n
we
r
e
b
ased
o
n
th
e
k
ey
wo
r
d
s
o
f
E
A
r
esear
ch
.
T
h
e
t
h
ir
d
s
tag
e,
“
id
en
tific
atio
n
”
,
in
v
o
lv
es
n
am
in
g
th
e
co
n
s
tr
u
cts
an
d
d
eter
m
in
in
g
th
e
m
ain
f
ea
t
u
r
e
s
o
f
th
ese
c
o
n
s
tr
u
cts.
I
n
th
e
i
d
en
tific
atio
n
s
tag
e,
th
e
c
o
n
s
tr
u
cts
cr
ea
ted
in
th
e
lig
h
t
o
f
th
e
k
ey
wo
r
d
s
r
elate
d
to
E
A
wer
e
n
am
ed
an
d
s
u
p
p
o
r
ted
b
y
th
e
wo
r
d
an
aly
s
is
in
th
e
ab
s
tr
ac
ts
.
T
h
e
“
v
alid
atio
n
”
s
tag
e
aim
s
to
d
et
er
m
in
e
th
e
v
alid
ity
o
f
th
e
c
o
n
s
tr
u
cts
cr
ea
ted
b
ased
o
n
th
e
r
e
latio
n
s
h
ip
s
b
etwe
en
co
n
ce
p
ts
.
T
h
ese
f
o
u
r
b
asic
s
tag
es
s
u
m
m
ar
ize
th
e
th
eo
r
etica
l
f
r
am
ewo
r
k
.
T
h
e
a
p
p
licatio
n
o
f
th
ese
f
o
u
r
s
tag
es
in
th
e
m
eth
o
d
o
lo
g
y
allo
ws
f
o
r
a
s
y
s
tem
atic
an
d
r
ig
o
r
o
u
s
ap
p
r
o
ac
h
to
an
aly
zin
g
an
d
u
n
d
er
s
tan
d
i
n
g
E
A
r
esear
ch
.
I
n
th
is
m
a
n
n
er
,
r
ese
ar
ch
er
s
will
b
e
a
b
le
to
co
llect,
p
r
o
ce
s
s
,
an
d
au
t
h
en
ticate
th
e
d
ata
in
a
n
ef
f
icie
n
t
m
an
n
er
f
o
r
m
o
r
e
co
n
v
in
cin
g
f
in
d
in
g
s
a
n
d
o
b
s
er
v
atio
n
s
.
Su
ch
s
tag
es
wer
e
u
tili
ze
d
to
ex
am
in
e
th
e
r
esear
ch
h
o
ts
p
o
ts
,
f
o
r
ec
ast
th
e
p
o
s
s
ib
le
r
esear
ch
d
ir
ec
tio
n
s
,
f
ig
u
r
e
o
u
t
an
d
v
is
u
alize
v
ar
io
u
s
o
p
er
atio
n
s
with
m
ath
em
atica
l
as
well
as
s
tati
s
tical
m
ea
s
u
r
es,
an
d
v
alid
ate
a
h
u
g
e
v
o
lu
m
e
o
f
d
ata
[
2
4
]
,
[
2
5
]
.
T
h
e
s
tag
es
p
r
e
s
e
n
t
e
d
i
n
Fi
g
u
r
e
1
i
l
l
u
s
t
r
a
te
t
h
e
m
o
r
a
e
x
a
c
t
s
t
e
p
s
t
h
a
t
a
r
e
a
p
p
l
i
e
d
i
n
t
h
e
b
i
b
li
o
m
e
t
r
i
c
a
n
al
y
s
i
s
o
f
E
A
r
es
e
a
r
c
h
.
Fig
u
r
e
1
.
T
h
eo
r
etica
l
f
r
a
m
ewo
r
k
T
h
e
p
r
o
ce
d
u
r
es
p
er
f
o
r
m
ed
in
ac
co
r
d
an
ce
with
t
h
e
s
tag
es sh
o
wn
in
Fig
u
r
e
1
ar
e
lis
ted
:
-
Data
co
llectio
n
:
t
h
e
d
ata
a
n
aly
ze
d
f
o
r
th
e
s
tu
d
y
wer
e
c
o
llected
u
s
in
g
5
6
4
a
r
ticles
r
elate
d
to
E
A
in
th
e
SS
C
I
in
d
ex
in
th
e
W
o
S d
atab
a
s
e.
T
h
e
d
ata
wer
e
s
elec
ted
f
r
o
m
p
u
b
licatio
n
s
b
etwe
en
1
9
8
7
an
d
2
0
2
3
.
-
Data
lim
itatio
n
s
:
t
h
e
s
tu
d
y
was
lim
i
ted
ac
co
r
d
in
g
to
ce
r
tain
cr
iter
ia.
T
h
ese
lim
itatio
n
s
in
clu
d
ed
p
u
b
licatio
n
s
r
elate
d
to
E
A
an
d
ex
clu
d
ed
o
th
er
t
o
p
ics.
-
Data
d
o
wn
lo
ad
:
a
r
ticles f
r
o
m
th
e
W
o
S d
atab
ase
th
at
m
et
th
e
cr
iter
ia
wer
e
d
o
wn
lo
a
d
ed
as ".
b
ib
"
an
d
"
.
csv
"
f
iles
.
T
h
ese
f
iles
co
n
s
titu
ted
th
e
m
ain
d
ata
s
o
u
r
ce
f
o
r
th
e
an
al
y
s
is
.
-
Data
an
aly
s
is
:
t
h
e
an
aly
s
is
o
f
th
e
d
ata
was
ca
r
r
ied
o
u
t
i
n
two
s
tag
es:
i
)
d
escr
ip
tiv
e
an
aly
s
is
:
d
o
wn
lo
ad
ed
d
ata
wer
e
a
n
n
o
tated
with
b
asi
c
d
escr
ip
tiv
e
s
tatis
tics
(
e.
g
.
n
u
m
b
er
o
f
p
u
b
licatio
n
s
,
n
u
m
b
er
o
f
au
t
h
o
r
s
)
a
n
d
ii
)
b
ib
lio
m
etr
ic
an
aly
s
is
:
b
ib
li
o
m
etr
ic
an
aly
s
is
o
f
th
e
d
ata
w
as
p
er
f
o
r
m
ed
.
T
h
is
s
tag
e
was
ca
r
r
ied
o
u
t u
s
in
g
s
cien
tific
m
ap
p
in
g
tech
n
iq
u
e.
-
B
ib
lio
m
etr
ic
an
aly
s
is
to
o
ls
:
a
s
p
ar
t o
f
th
e
an
aly
s
es,
n
etwo
r
k
an
aly
s
is
m
ap
s
o
f
t
h
e
d
ata
wer
e
cr
ea
ted
.
T
h
ese
m
ap
s
wer
e
p
r
ep
a
r
ed
u
s
in
g
s
p
e
cial
s
o
f
twar
e
s
u
ch
as B
ib
lio
s
h
in
y
an
d
VOSv
iewe
r
.
Ver
if
ica
t
io
n
Gath
er
in
g
ev
id
en
ce
f
o
r
th
e
v
alidity
o
f
co
n
s
r
u
ction
s
d
irev
ed
f
r
o
m
th
e
r
elati
o
n
s
h
ip
s
b
etw
en
co
n
cep
ts
I
dentif
ica
t
io
n
Nam
in
g
th
e
s
tr
u
ctu
r
es
an
d
d
eter
m
in
in
g
th
e
b
asic c
h
ar
ater
is
tics
o
f
s
tr
u
ctu
r
e
Vis
ua
liza
t
io
n
P
er
f
o
r
m
in
g
an
aly
ze
s
an
d
cr
ea
tin
g
m
ap
s
u
s
in
g
B
ib
lio
s
h
in
y
an
d
VOSv
iew
er
s
o
f
tw
ar
e
E
x
plo
ra
t
io
n
Scan
n
in
g
p
u
b
licatio
n
s
r
elate
d
to
"
en
v
ir
o
n
m
en
tal
aw
ar
en
ess
"
in
th
e
W
eb
o
f
Scien
ce
d
atab
ase
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t
J
E
v
al
&
R
es E
d
u
c
I
SS
N:
2252
-
8
8
2
2
A
r
ev
iew
o
f res
ea
r
ch
o
n
en
viro
n
men
ta
l a
w
a
r
en
ess
b
a
s
ed
o
n
b
ib
lio
metric
…
(
Öme
r
C
em
K
a
r
a
ca
o
ğ
lu
)
1773
-
R
esear
ch
ca
teg
o
r
ies:
t
h
e
r
esea
r
ch
in
cl
u
d
es
b
i
b
lio
m
etr
ic
a
n
al
y
s
is
o
n
th
e
d
is
tr
ib
u
tio
n
o
f
E
A
p
u
b
licatio
n
s
b
y
y
ea
r
s
,
th
e
m
o
s
t
cited
jo
u
r
n
als,
th
e
m
o
s
t
p
u
b
lis
h
in
g
co
u
n
tr
i
es,
ac
tiv
e
u
n
iv
er
s
ities
an
d
w
o
r
d
ca
teg
o
r
ies
in
th
e
ab
s
tr
ac
ts
,
f
o
cu
s
in
g
o
n
k
e
y
wo
r
d
n
etwo
r
k
an
aly
s
is
.
U
s
i
n
g
t
h
es
e
m
et
h
o
d
s
,
t
h
e
r
ese
a
r
c
h
c
o
n
d
u
c
t
e
d
a
b
i
b
l
i
o
m
e
t
r
ic
a
n
a
l
y
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is
o
f
E
A
r
es
e
a
r
c
h
i
n
t
h
e
W
o
S
d
a
t
a
b
a
s
e
.
A
f
t
e
r
a
n
a
l
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d
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t
a
o
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t
a
i
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d
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n
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p
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e
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