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r
e,
ac
tio
n
r
esear
ch
ca
taly
ze
s
p
r
o
f
ess
io
n
al
g
r
o
wth
an
d
life
lo
n
g
lear
n
in
g
am
o
n
g
ed
u
ca
to
r
s
,
allo
win
g
th
em
to
r
ef
lect
o
n
th
eir
p
r
ac
tice
cr
itically
,
e
x
p
a
n
d
th
eir
p
e
d
ag
o
g
ical
r
e
p
er
to
i
r
e,
an
d
c
u
ltiv
ate
a
d
is
p
o
s
itio
n
o
f
i
n
q
u
ir
y
-
d
r
i
v
en
s
ch
o
lar
s
h
ip
[
8
]
.
T
h
r
o
u
g
h
co
lla
b
o
r
ativ
e
in
q
u
ir
y
p
r
o
jects
an
d
p
ar
ticip
ato
r
y
ac
tio
n
r
esear
ch
(
PAR
)
in
itiativ
es,
ed
u
ca
to
r
s
lev
er
ag
e
th
eir
c
o
llectiv
e
ex
p
e
r
tis
e
to
ch
allen
g
e
co
n
v
en
tio
n
al
wis
d
o
m
an
d
in
n
o
v
ate
with
in
th
eir
r
e
s
p
ec
tiv
e
d
o
m
ain
s
.
B
y
en
g
a
g
in
g
in
co
llab
o
r
ativ
e
in
q
u
ir
y
p
r
o
jects
an
d
PAR
in
itiativ
es,
teac
h
er
s
ca
n
lev
e
r
ag
e
th
eir
co
llectiv
e
ex
p
er
tis
e
an
d
ex
p
er
ien
ce
s
to
co
-
co
n
s
tr
u
ct
k
n
o
wled
g
e,
ch
allen
g
e
co
n
v
en
tio
n
al
wis
d
o
m
,
an
d
in
n
o
v
ate
with
in
th
e
ir
r
esp
ec
tiv
e
d
o
m
ain
s
[
9
]
,
[
1
0
]
.
Mo
r
e
o
v
er
,
th
e
d
is
s
em
in
atio
n
o
f
ac
tio
n
r
es
ea
r
ch
f
in
d
i
n
g
s
th
r
o
u
g
h
p
r
o
f
ess
io
n
al
lear
n
in
g
co
m
m
u
n
it
ies
an
d
s
ch
o
lar
ly
p
u
b
licatio
n
s
s
er
v
es
to
e
n
r
ich
t
h
e
b
r
o
ad
er
e
d
u
ca
tio
n
al
d
is
co
u
r
s
e,
f
o
s
ter
in
g
a
cu
ltu
r
e
o
f
k
n
o
wled
g
e
s
h
ar
in
g
an
d
co
n
tin
u
o
u
s
im
p
r
o
v
em
en
t w
ith
i
n
th
e
p
r
o
f
ess
io
n
[
1
1
]
.
R
esear
ch
b
y
T
ian
a
n
d
Hu
b
e
r
[
1
2
]
r
ev
iewe
d
2
,
3
4
7
p
u
b
licatio
n
s
f
r
o
m
1
5
co
r
e
ed
u
ca
tio
n
al
l
ea
d
er
s
h
ip
,
ad
m
in
is
tr
atio
n
,
an
d
m
a
n
ag
em
en
t
(
E
d
L
AM
)
jo
u
r
n
als
p
u
b
lis
h
ed
f
r
o
m
2
0
0
7
to
2
0
1
6
,
id
e
n
tify
in
g
f
iv
e
m
ain
th
em
atic
s
tr
an
d
s
: im
p
r
o
v
in
g
s
t
u
d
en
t a
ch
iev
em
e
n
t,
p
r
o
m
o
tin
g
ch
an
g
e
an
d
ac
c
o
u
n
ta
b
ilit
y
,
ad
v
o
ca
tin
g
f
o
r
s
o
cial
ju
s
tice,
en
h
an
cin
g
i
n
s
tr
u
ctio
n
al
lead
er
s
h
ip
,
an
d
e
x
am
in
i
n
g
c
o
llab
o
r
ativ
e
lead
er
s
h
ip
’
s
im
p
ac
t
o
n
s
ch
o
o
l
d
y
n
am
ics
an
d
teac
h
er
well
-
b
ein
g
.
T
h
eir
b
ib
lio
m
etr
ic
a
n
al
y
s
is
u
n
d
er
s
co
r
es
th
e
v
al
u
e
o
f
ac
tio
n
r
esear
ch
i
n
en
h
an
cin
g
th
ese
ar
ea
s
b
y
f
a
cilitatin
g
co
llab
o
r
atio
n
b
etw
ee
n
teac
h
er
s
an
d
m
an
a
g
em
e
n
t
to
ad
d
r
ess
k
ey
ed
u
ca
tio
n
al
is
s
u
es.
B
ib
lio
m
etr
ic
an
aly
s
is
h
elp
s
in
u
n
d
er
s
ta
n
d
in
g
t
h
e
in
f
l
u
en
ce
,
v
is
ib
ilit
y
,
an
d
t
r
en
d
s
with
in
PAR
[
1
3
]
,
[
1
4
]
.
R
esear
ch
b
y
Galletta
an
d
T
o
r
r
e
[
1
5
]
s
h
o
w
ed
th
at
PAR
s
u
p
p
o
r
ts
tr
an
s
f
o
r
m
ativ
e
ch
an
g
e
an
d
ch
allen
g
es
tr
ad
itio
n
al
p
o
wer
s
tr
u
ctu
r
es,
wh
ile
J
o
h
ar
i
et
a
l.
[
1
6
]
h
ig
h
lig
h
t
ed
its
p
o
s
itiv
e
ef
f
ec
ts
o
n
teac
h
in
g
m
eth
o
d
s
.
B
y
an
aly
zin
g
m
etr
ic
s
an
d
tr
en
d
s
,
b
ib
lio
m
etr
ic
an
aly
s
is
o
f
f
er
s
es
s
en
tial
in
s
ig
h
ts
f
o
r
ad
v
an
cin
g
PAR
in
ed
u
ca
tio
n
al
s
ettin
g
s
,
g
u
id
in
g
s
ch
o
lar
s
,
in
s
tr
u
cto
r
s
,
a
n
d
p
o
l
icy
m
ak
er
s
in
im
p
r
o
v
in
g
ed
u
ca
tio
n
al
p
r
ac
tices.
T
o
en
h
an
ce
u
n
d
e
r
s
tan
d
in
g
o
f
ac
tio
n
r
esear
ch
in
m
an
a
g
e
m
en
t,
s
ch
o
lar
s
an
d
p
r
ac
titi
o
n
er
s
s
h
o
u
ld
ex
p
lo
r
e
o
r
g
an
izatio
n
al
d
y
n
a
m
ics,
lead
er
s
h
ip
s
tr
ateg
ies,
a
n
d
d
ec
is
io
n
-
m
ak
in
g
i
n
ed
u
ca
tio
n
.
A
b
ib
lio
m
etr
ic
an
aly
s
is
aid
s
in
m
ak
in
g
ev
id
en
ce
-
b
ased
d
ec
is
io
n
s
,
en
c
o
u
r
ag
es
in
ter
d
is
cip
lin
ar
y
d
ialo
g
u
e
[
1
7
]
,
[
1
8
]
,
an
d
f
o
s
ter
s
n
ew
k
n
o
wled
g
e
an
d
p
ar
ad
ig
m
s
[
1
9
]
.
T
h
is
d
ialo
g
u
e
is
e
s
s
en
tial
f
o
r
ad
ap
tin
g
to
ch
an
g
es
in
ac
tio
n
r
esear
ch
m
a
n
ag
em
en
t
an
d
s
h
a
p
in
g
t
h
e
f
u
tu
r
e
o
f
ed
u
ca
tio
n
b
y
ad
d
r
ess
in
g
em
e
r
g
in
g
ch
alle
n
g
es.
B
y
c
o
m
b
in
i
n
g
d
iv
er
s
e
ex
p
e
r
tis
e,
s
ch
o
lar
s
ca
n
u
n
c
o
v
er
n
ew
p
e
r
s
p
ec
tiv
es
a
n
d
s
o
lu
tio
n
s
t
h
at
m
ig
h
t
n
o
t
e
m
er
g
e
with
in
s
in
g
le
s
p
ec
ialty
[
2
0
]
.
T
h
e
an
aly
s
is
ai
m
s
to
o
f
f
er
a
th
o
r
o
u
g
h
u
n
d
er
s
tan
d
in
g
o
f
m
an
ag
in
g
ac
tio
n
r
e
s
ea
r
ch
in
s
ch
o
o
ls
,
in
v
itin
g
en
g
ag
e
m
en
t
f
r
o
m
s
c
h
o
lar
s
,
p
o
licy
m
ak
e
r
s
,
an
d
p
r
a
ctitio
n
er
s
.
T
h
e
g
o
al
is
to
ca
p
tu
r
e
th
e
ess
en
ce
o
f
ac
tio
n
r
esear
ch
m
a
n
ag
em
en
t
an
d
s
et
th
e
s
tag
e
f
o
r
f
u
tu
r
e
im
p
r
o
v
em
en
ts
a
n
d
in
n
o
v
at
io
n
s
in
ed
u
ca
tio
n
al
p
r
ac
tices.
T
h
is
ap
p
r
o
ac
h
will u
ltima
tely
b
en
ef
it st
u
d
en
ts
,
ed
u
ca
to
r
s
,
an
d
ed
u
ca
tio
n
al
in
s
tit
u
tio
n
s
.
T
h
e
r
esear
ch
will in
v
esti
g
ate
s
ev
er
al
r
esear
ch
q
u
esti
o
n
s
(
R
Q)
:
i)
R
Q1
:
wh
at
ar
e
th
e
cu
r
r
e
n
t r
ese
ar
ch
tr
en
d
s
in
m
an
ag
i
n
g
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
?
ii)
R
Q2
:
wh
at
a
r
e
th
e
k
ey
c
h
ar
ac
ter
is
tics
o
f
jo
u
r
n
als
an
aly
ze
d
i
n
ter
m
s
o
f
p
u
b
licatio
n
n
u
m
b
er
s
,
co
u
n
tr
ies
o
f
p
u
b
licatio
n
,
im
p
ac
t f
ac
to
r
s
,
a
n
d
in
d
ex
i
n
g
in
t
h
e
s
o
cial
s
cien
ce
s
citatio
n
in
d
ex
(
SS
C
I
)
?
iii)
R
Q3
:
wh
at
ap
p
r
o
ac
h
is
p
r
o
p
o
s
ed
f
o
r
m
an
a
g
in
g
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
b
ased
o
n
th
e
id
e
n
tifie
d
clu
s
ter
s
o
f
k
ey
wo
r
d
s
,
an
d
h
o
w
d
o
es
it
aim
to
ad
d
r
ess
in
ter
co
n
n
e
cted
r
esear
ch
th
em
es
an
d
d
r
i
v
e
co
n
tin
u
o
u
s
im
p
r
o
v
em
e
n
t in
ed
u
ca
tio
n
al
p
r
ac
tices?
iv
)
R
Q4
:
wh
at
ar
e
th
e
k
ey
s
tatis
ti
cs
r
eg
ar
d
in
g
th
e
n
u
m
b
e
r
o
f
co
-
au
th
o
r
s
p
er
a
r
ticle,
to
p
co
n
tr
i
b
u
tin
g
au
th
o
r
s
,
co
u
n
tr
ies r
ep
r
esen
ted
,
an
d
d
is
tr
ib
u
tio
n
o
f
ar
ticles ac
r
o
s
s
co
u
n
tr
ies in
th
e
d
ataset?
v)
R
Q5
:
wh
at
ar
e
th
e
k
ey
d
etails
ab
o
u
t
th
e
au
th
o
r
s
an
d
th
eir
af
f
iliatio
n
s
in
th
e
m
o
s
t
cited
ar
ticle,
in
clu
d
in
g
th
e
n
u
m
b
er
o
f
au
th
o
r
s
,
th
eir
in
s
titu
tio
n
s
,
an
d
th
e
co
u
n
tr
ies th
ey
r
ep
r
esen
t?
v
i)
R
Q6
:
wh
at
ar
e
th
e
co
m
m
o
n
lim
itatio
n
s
o
f
m
an
ag
in
g
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
,
as
o
u
tli
n
ed
in
th
e
two
ar
ticles m
en
tio
n
ed
in
th
e
s
tatem
en
t?
2.
M
E
T
H
O
D
2
.
1
.
Resea
rc
h
des
ig
n
T
h
is
p
ap
er
aim
s
to
an
aly
ze
th
e
latest
tr
en
d
s
in
th
e
s
ch
o
lar
ly
liter
atu
r
e
o
n
th
e
m
an
ag
e
m
en
t
o
f
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
th
r
o
u
g
h
th
e
u
s
e
o
f
b
ib
lio
m
etr
ic
an
aly
s
is
.
B
ib
lio
m
etr
ics
an
aly
ze
s
citatio
n
co
u
n
ts
,
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
Ma
n
a
g
eme
n
t
o
f a
ctio
n
r
esea
r
ch
in
s
ch
o
o
l
:
a
b
i
b
lio
metric a
n
a
lysi
s
(
A
z
lin
Mo
kta
r
)
343
au
th
o
r
s
h
ip
p
atter
n
s
,
p
u
b
licatio
n
tr
en
d
s
,
a
n
d
im
p
ac
t
f
ac
to
r
s
;
i
t
i
s
im
p
o
r
tan
t
f
o
r
r
esear
ch
er
s
a
n
d
ac
ad
em
ics
[
2
1
]
,
[
2
2
]
.
Stu
d
y
b
y
M
o
ed
[
2
3
]
em
p
h
asized
th
e
s
ig
n
if
ican
ce
o
f
b
ib
lio
m
etr
ic
ass
ess
m
en
ts
f
o
r
u
n
d
er
s
tan
d
i
n
g
s
ch
o
lar
ly
ac
tiv
ity
an
d
p
e
r
f
o
r
m
an
ce
,
wh
ile
also
ac
k
n
o
wled
g
i
n
g
its
p
o
licy
im
p
o
r
tan
ce
.
I
n
s
cien
tific
r
esear
ch
,
it
i
s
cr
u
cial
to
h
av
e
a
b
r
o
ad
e
r
u
n
d
er
s
tan
d
in
g
o
f
p
r
io
r
r
esear
ch
o
n
r
elev
a
n
t
to
p
ics
[
2
4
]
,
as
w
ell
as
a
b
ib
lio
m
etr
ic
an
aly
s
is
o
f
g
lo
b
al
r
esear
ch
ac
t
iv
ities
[
2
5
]
.
2
.
2
.
Da
t
a
s
et
T
h
is
s
tu
d
y
an
aly
ze
s
ar
ticles
in
Sco
p
u
s
an
d
W
eb
o
f
Scien
ce
(
W
o
S)
d
atab
ases
f
o
r
th
eir
e
x
t
en
s
iv
e
an
d
d
iv
er
s
e
ar
ticle
co
llectio
n
s
.
T
h
e
s
ea
r
ch
s
tr
ateg
y
was
title
:
“a
ctio
n
r
esear
ch
AND
ed
u
ca
tio
n
al
AND
m
an
ag
em
en
t
AND
s
ch
o
o
l”.
Do
cT
y
p
e:
Ar
ticle.
PUB
YE
A
R
:
<2
0
2
4
.
Sco
p
u
s
an
d
W
o
S
s
ea
r
ch
r
esu
lts
ca
n
b
e
ex
p
o
r
ted
t
o
an
ex
ce
llen
t
t
o
o
ls
lik
e
VOS
V
iewe
r
[
2
6
]
f
o
r
f
u
r
th
er
in
v
esti
g
atio
n
[
2
7
]
,
[
2
8
]
,
wh
ich
is
cr
u
cial
f
o
r
v
is
u
alizin
g
b
ib
lio
m
etr
ic
d
ata
in
to
s
cien
tific
f
ield
d
ev
elo
p
m
en
t,
r
esear
ch
tr
e
n
d
s
,
an
d
p
er
f
o
r
m
an
ce
m
etr
ics
in
to
d
ay
’
s
tech
n
o
lo
g
ical
lan
d
s
ca
p
e
[
2
9
]
,
[
3
0
]
.
T
h
is
s
tu
d
y
r
elie
d
o
n
t
h
e
W
o
S
d
atab
ase
f
o
r
d
a
ta
co
llectio
n
d
u
e
to
its
s
tr
o
n
g
co
v
er
ag
e
s
in
ce
1
9
9
0
an
d
its
f
o
cu
s
o
n
h
ig
h
-
q
u
ality
,
p
ee
r
-
r
ev
iewe
d
j
o
u
r
n
als,
as in
d
icate
d
b
y
C
lar
iv
ate
an
aly
tics
’
jo
u
r
n
al
citatio
n
r
e
p
o
r
ts
(
J
C
R
)
[
3
1
]
–
[
3
3
]
.
U
n
lik
e
Sco
p
u
s
,
wh
ic
h
im
p
ac
ts
r
e
ce
n
t
ar
ticles,
W
o
S
p
r
o
v
id
es a
d
ee
p
er
h
is
to
r
ical
p
e
r
s
p
ec
tiv
e,
en
s
u
r
in
g
th
e
in
clu
s
i
o
n
o
f
p
r
esti
g
io
u
s
p
u
b
licatio
n
s
[
3
4
]
,
[
3
5
]
.
2
.
3
.
Da
t
a
a
na
ly
s
i
s
I
n
th
is
s
tu
d
y
,
th
e
au
th
o
r
s
u
s
ed
PR
I
SMA
g
u
id
elin
es
f
o
r
s
y
s
tem
atic
r
ev
iew
an
d
m
eta
-
a
n
aly
s
is
,
to
en
s
u
r
e
tr
an
s
p
ar
en
cy
,
r
ig
o
r
,
an
d
cr
ed
ib
ilit
y
o
f
th
e
f
in
d
in
g
s
.
T
h
e
s
y
s
tem
atic
r
ev
iew
p
r
o
ce
s
s
b
eg
an
with
th
e
f
o
r
m
u
latio
n
o
f
a
r
esear
ch
q
u
esti
o
n
an
d
th
e
d
ev
elo
p
m
e
n
t
o
f
in
clu
s
io
n
an
d
ex
clu
s
io
n
cr
iter
ia.
Usi
n
g
th
ese
cr
iter
ia,
th
e
a
u
th
o
r
s
c
o
n
d
u
cte
d
a
c
o
m
p
r
e
h
en
s
iv
e
s
ea
r
ch
o
f
r
elev
an
t
liter
atu
r
e
u
s
in
g
s
p
ec
if
ied
k
e
y
wo
r
d
s
a
n
d
s
ea
r
ch
s
tr
in
g
s
.
T
h
e
s
ea
r
c
h
s
tr
ateg
y
in
v
o
lv
e
d
m
u
ltip
le
elec
t
r
o
n
ic
d
atab
ases
,
in
clu
d
in
g
Sco
p
u
s
a
n
d
W
o
S,
to
id
en
tify
all
p
o
ten
tially
r
ele
v
an
t
s
tu
d
ies.
A
s
er
ies
o
f
s
ea
r
ch
es
wer
e
ca
r
r
ied
o
u
t
w
h
ich
u
s
ed
v
a
r
io
u
s
co
m
b
in
atio
n
s
o
f
t
h
e
f
o
llo
win
g
k
ey
w
o
r
d
s
s
tr
in
g
:
T
I
T
L
E
-
AB
S_
KE
Y
(
"a
ctio
n
*
r
esear
ch
")
AND
ed
u
ca
tio
n
al
AND
m
an
ag
em
en
t
AND
s
ch
o
o
l.
Af
ter
r
etr
iev
in
g
th
e
in
itial
s
et
o
f
ar
ticles,
th
e
au
th
o
r
s
ap
p
lied
ad
d
itio
n
al
s
elec
tio
n
cr
iter
ia
to
s
cr
ee
n
f
o
r
elig
ib
ilit
y
.
T
h
is
p
r
o
ce
s
s
in
v
o
lv
ed
ass
ess
in
g
th
e
titl
es,
ab
s
tr
ac
t
s
,
an
d
f
u
ll
tex
ts
o
f
th
e
r
etr
iev
ed
ar
ticles
to
d
eter
m
in
e
th
eir
r
elev
an
ce
to
th
e
r
esear
ch
q
u
esti
o
n
.
Ar
ticles
th
a
t
m
et
th
e
in
clu
s
io
n
cr
iter
ia
wer
e
in
cl
u
d
ed
in
th
e
f
in
al
an
aly
s
is
,
wh
ile
t
h
o
s
e
th
at
d
id
n
o
t
m
ee
t
th
e
cr
iter
ia
wer
e
ex
clu
d
ed
.
T
h
e
f
in
al
s
ea
r
ch
s
tr
in
g
i
n
T
a
b
le
1
[
3
6
]
an
d
s
elec
tio
n
c
r
iter
io
n
s
h
o
wed
in
T
ab
le
2
[
3
7
]
r
ef
i
n
e
m
en
t
in
clu
d
ed
3
3
7
p
u
b
lis
h
ed
p
ap
er
s
f
r
o
m
W
o
S
wh
ich
wer
e
u
s
ed
f
o
r
b
ib
lio
m
etr
ic
an
aly
s
is
.
T
h
e
PR
I
SMA
f
lo
w
d
iag
r
am
,
as
d
ep
icted
in
Fig
u
r
e
1
[
3
8
]
,
illu
s
tr
ates
th
e
s
y
s
tem
atic
p
r
o
ce
s
s
o
f
ar
ticle
s
elec
tio
n
an
d
s
cr
ee
n
in
g
.
T
h
is
d
iag
r
am
p
r
o
v
id
es
tr
a
n
s
p
ar
en
c
y
r
eg
a
r
d
i
n
g
th
e
n
u
m
b
er
o
f
ar
ticles
r
etr
i
ev
ed
,
s
cr
ee
n
e
d
,
an
d
in
clu
d
ed
i
n
th
e
f
in
al
an
aly
s
is
,
th
er
eb
y
e
n
h
an
cin
g
th
e
r
ep
r
o
d
u
cib
ilit
y
o
f
th
e
s
tu
d
y
.
T
ab
le
1
.
T
h
e
f
in
al
s
ea
r
ch
s
tr
in
g
[
3
6
]
D
a
t
a
b
a
s
e
Th
e
se
a
r
c
h
st
r
i
n
g
S
c
o
p
u
s
TI
TLE
-
A
B
S
-
K
EY
(
(
"
a
c
t
i
o
n
*
r
e
sea
r
c
h
"
)
A
N
D
e
d
u
c
a
t
i
o
n
a
l
A
N
D
ma
n
a
g
e
me
n
t
A
N
D
s
c
h
o
o
l
)
A
N
D
P
U
B
Y
EA
R
>
1
9
7
5
A
N
D
P
U
B
Y
EA
R
<
2
0
2
4
A
N
D
(
LI
M
I
T
-
TO
(
D
O
C
TY
P
E,
"
a
r
"
)
)
A
N
D
(
LI
M
I
T
-
TO
(
LA
N
G
U
A
G
E,
"
En
g
l
i
sh
"
)
)
W
o
S
(
"
a
c
t
i
o
n
*
r
e
s
e
a
r
c
h
"
)
A
N
D
e
d
u
c
a
t
i
o
n
a
l
A
N
D
m
a
n
a
g
e
me
n
t
A
N
D
sc
h
o
o
l
(
A
l
l
F
i
e
l
d
s)
a
n
d
A
r
t
i
c
l
e
(
D
o
c
u
m
e
n
t
T
y
p
e
s)
a
n
d
E
n
g
l
i
sh
(
La
n
g
u
a
g
e
s)
a
n
d
2
0
2
4
(
E
x
c
l
u
d
e
–
P
u
b
l
i
c
a
t
i
o
n
Y
e
a
r
s)
T
ab
le
2
.
T
h
e
s
elec
tio
n
cr
iter
io
n
[
3
7
]
C
r
i
t
e
r
i
o
n
I
n
c
l
u
s
i
o
n
Ex
c
l
u
si
o
n
La
n
g
u
a
g
e
En
g
l
i
sh
N
o
n
-
E
n
g
l
i
sh
Ti
me
f
r
a
me
Li
t
e
r
a
t
u
r
e
t
y
p
e
F
i
r
st
p
u
b
l
i
s
h
e
r
–
2
0
2
3
Jo
u
r
n
a
l
(
A
r
t
i
c
l
e
)
2
0
2
4
B
o
o
k
c
h
a
p
t
e
r
,
r
e
v
i
e
w
a
r
t
i
c
l
e
,
e
a
r
l
y
a
c
c
e
ss,
p
r
o
c
e
e
d
i
n
g
p
a
p
e
r
,
e
d
i
t
o
r
i
a
l
m
a
t
e
r
i
a
l
,
n
o
t
e
3.
RE
SU
L
T
S AN
D
D
I
SCU
SS
I
O
N
T
h
e
p
u
b
licatio
n
g
r
o
wth
o
b
s
er
v
ed
in
th
e
W
o
S
d
ata
b
ase
o
v
er
th
e
y
ea
r
s
r
ef
lects
th
e
i
n
cr
ea
s
in
g
in
ter
est
an
d
s
ch
o
lar
l
y
ac
tiv
ity
i
n
th
e
f
i
eld
o
f
ac
tio
n
r
esear
ch
in
ed
u
ca
tio
n
al
m
an
ag
e
m
en
t
a
n
d
s
ch
o
o
l
co
n
tex
ts
.
Fro
m
its
in
itial
ap
p
ea
r
an
ce
in
1
9
7
6
in
Sco
p
u
s
an
d
later
in
1
9
8
9
i
n
W
o
S,
th
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
r
elate
d
to
ac
tio
n
r
esear
ch
h
as
s
h
o
wn
a
s
tead
y
u
p
war
d
tr
ajec
to
r
y
as
s
h
o
wn
in
Fig
u
r
e
2
.
T
h
is
g
r
o
wth
is
ev
id
en
t
in
th
e
d
ata
ex
tr
ac
ted
o
n
A
p
r
il
4
th
,
2
0
2
4
,
wh
ich
r
ev
ea
ls
a
co
n
s
is
ten
t
in
c
r
ea
s
e
in
th
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
o
v
er
d
if
f
er
en
t
p
er
io
d
s
.
B
etwe
en
th
e
y
ea
r
s
1
9
7
6
an
d
2
0
0
2
,
th
er
e
wer
e
a
to
tal
o
f
9
p
u
b
licatio
n
s
id
en
tifie
d
in
W
o
S.
T
h
is
r
elativ
ely
lo
w
n
u
m
b
er
m
a
y
i
n
d
icate
a
n
ascen
t
s
tag
e
o
f
r
e
s
ea
r
ch
ac
tiv
ity
o
r
lim
ited
r
ec
o
g
n
itio
n
o
f
ac
tio
n
r
esear
ch
with
in
s
ch
o
lar
ly
cir
cles
d
u
r
in
g
th
is
p
er
io
d
.
Ho
w
ev
er
,
f
r
o
m
2
0
0
2
to
2
0
1
3
,
th
er
e
was
a
n
o
tab
le
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
.
1
,
Feb
r
u
a
r
y
20
25
:
34
1
-
355
344
in
cr
ea
s
e
in
p
u
b
licatio
n
s
,
with
th
e
n
u
m
b
er
r
is
in
g
to
8
5
.
T
h
is
s
u
r
g
e
in
p
u
b
licatio
n
s
s
u
g
g
ests
a
g
r
o
win
g
in
ter
est
in
ac
tio
n
r
esear
ch
as
a
m
eth
o
d
o
lo
g
ical
a
p
p
r
o
ac
h
to
a
d
d
r
ess
in
g
ed
u
ca
tio
n
al
ch
allen
g
es
a
n
d
im
p
r
o
v
in
g
s
ch
o
o
l
m
an
ag
em
en
t
p
r
ac
tices.
T
h
e
m
o
s
t
s
ig
n
if
ican
t
g
r
o
wth
o
cc
u
r
r
ed
in
th
e
m
o
s
t
r
ec
en
t
tim
e
f
r
am
e,
f
r
o
m
2
0
1
4
t
o
2
0
2
3
,
d
u
r
in
g
wh
ich
th
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
s
o
a
r
ed
to
2
4
3
.
T
h
is
ex
p
o
n
en
tial
i
n
cr
e
ase
u
n
d
er
s
co
r
es
th
e
h
eig
h
ten
ed
atten
tio
n
an
d
r
ec
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m
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r
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Fig
u
r
e
1
.
PR
I
SMA
f
lo
w
d
iag
r
am
[
3
8
]
Fig
u
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e
2
.
An
n
u
al
ev
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lu
tio
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-
p
u
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p
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s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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J
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&
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SS
N:
2252
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8
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3
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J
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ticles
ap
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2
3
8
in
ter
n
atio
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al
jo
u
r
n
als,
with
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iv
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u
r
n
als
p
u
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th
r
ee
o
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m
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r
e
ar
ticles:
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d
u
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Actio
n
R
esear
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(
1
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ar
ticles),
So
u
th
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r
ican
J
o
u
r
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al
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ticles),
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o
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ip
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t
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ticles),
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Ad
m
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tr
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d
L
ea
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r
s
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ip
(
4
ar
ticles),
an
d
C
am
b
r
id
g
e
J
o
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r
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al
o
f
E
d
u
ca
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(
3
ar
ticles).
Of
th
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f
o
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r
jo
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als
ar
e
b
ased
in
th
e
Un
ited
Kin
g
d
o
m
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r
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u
th
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r
ica.
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ch
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p
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m
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en
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ig
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est
jo
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al
im
p
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t
f
ac
to
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f
o
r
2
0
2
2
[
3
9
]
,
wh
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s
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m
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3
.
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d
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5
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ak
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ig
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ican
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3
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1
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1
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Resea
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a.
Ris
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p
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a
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T
h
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s
is
in
d
icate
s
a
s
ig
n
if
ican
t
in
cr
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s
e
in
p
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b
licatio
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r
ates
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elate
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m
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ag
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esear
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s
ch
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o
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T
h
e
b
i
b
lio
m
etr
ic
d
ata
in
Fig
u
r
e
2
in
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icate
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,
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m
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d
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3
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r
o
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0
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4
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T
h
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esp
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ig
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if
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f
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m
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4
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war
d
s
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ef
lects
a
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n
g
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esear
ch
e
r
s
an
d
ed
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ca
to
r
s
in
ac
tio
n
r
esear
ch
p
r
ac
tices with
in
ed
u
ca
tio
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al
s
ettin
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s
.
b.
F
o
cus
o
n
co
lla
bo
ra
t
iv
e
pro
bl
em
-
s
o
lv
ing
a
nd
inclu
s
iv
it
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T
h
er
e
is
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clea
r
tr
en
d
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d
s
co
llab
o
r
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p
r
o
b
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s
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l
v
in
g
a
n
d
in
cl
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s
iv
ity
in
m
an
a
g
in
g
ac
tio
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r
esear
ch
in
s
ch
o
o
ls
.
E
d
u
ca
t
o
r
s
an
d
r
esear
ch
er
s
ar
e
in
cr
ea
s
in
g
ly
v
alu
in
g
c
o
llab
o
r
ativ
e
m
eth
o
d
s
to
tack
le
co
m
p
lex
ed
u
ca
tio
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al
ch
allen
g
es
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d
p
r
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m
o
te
d
iv
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s
ity
with
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n
lear
n
in
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e
n
v
ir
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n
m
en
ts
.
C
o
llab
o
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e
p
r
o
b
lem
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s
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lv
in
g
en
c
o
u
r
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es
s
h
ar
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r
esp
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s
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d
d
ee
p
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ag
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m
en
t
am
o
n
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e
d
u
ca
to
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s
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o
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ter
i
n
g
a
s
tr
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g
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en
s
e
o
f
co
m
m
u
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ity
.
Ad
d
itio
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ally
,
i
n
clu
s
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en
s
u
r
es
th
at
t
h
e
d
iv
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s
e
n
ee
d
s
o
f
s
tu
d
en
ts
ar
e
ad
d
r
ess
ed
,
lead
in
g
to
m
o
r
e
eq
u
itab
le
ed
u
ca
tio
n
al
o
u
tco
m
es.
c.
E
m
ph
a
s
is
o
n
k
no
wledg
e
a
nd
lea
dersh
ip
R
esear
ch
th
em
es
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elate
d
to
k
n
o
wled
g
e
an
d
lead
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s
h
ip
e
m
er
g
e
as
p
r
o
m
in
en
t
ar
ea
s
o
f
f
o
cu
s
in
m
an
ag
in
g
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
.
T
h
is
em
p
h
asis
u
n
d
er
s
c
o
r
es th
e
im
p
o
r
tan
ce
o
f
in
f
o
r
m
ed
d
ec
is
io
n
-
m
ak
in
g
an
d
ef
f
ec
tiv
e
lead
er
s
h
ip
i
n
d
r
i
v
in
g
ac
tio
n
r
esear
ch
i
n
itiativ
es
to
im
p
r
o
v
e
ed
u
ca
tio
n
al
p
r
ac
t
ices
an
d
o
u
tco
m
es.
Kn
o
wled
g
ea
b
le
lead
er
s
ar
e
b
etter
eq
u
ip
p
ed
to
g
u
id
e
teac
h
er
s
in
r
ef
lectiv
e
p
r
ac
tices,
f
o
s
ter
in
g
a
cu
ltu
r
e
o
f
co
n
tin
u
o
u
s
im
p
r
o
v
em
e
n
t.
Mo
r
eo
v
er
,
lead
er
s
h
ip
p
lay
s
a
cr
u
ci
al
r
o
le
i
n
b
u
ild
in
g
a
s
u
p
p
o
r
tiv
e
en
v
ir
o
n
m
en
t
th
at
en
co
u
r
a
g
es in
n
o
v
atio
n
an
d
em
p
o
wer
s
ed
u
ca
to
r
s
to
tak
e
o
wn
er
s
h
ip
o
f
ac
tio
n
r
esear
ch
p
r
o
je
cts.
d.
G
lo
ba
l
persp
ec
t
iv
e
a
nd
co
lla
bo
ra
t
iv
e
ef
f
o
rt
s
T
h
e
tr
en
d
to
war
d
s
a
g
lo
b
al
p
er
s
p
ec
tiv
e
o
n
e
d
u
ca
tio
n
al
ac
tio
n
r
esear
ch
a
n
d
e
n
g
ag
e
m
en
t
,
ca
r
e
an
d
im
p
ac
t,
an
d
em
p
o
we
r
m
en
t
an
d
p
ar
ticip
atio
n
,
s
h
o
wca
s
in
g
i
n
ter
co
n
n
ec
te
d
n
ess
ac
r
o
s
s
r
esear
ch
to
p
ics.
T
h
ese
th
em
es
p
r
o
v
i
d
e
a
co
m
p
r
eh
e
n
s
iv
e
u
n
d
e
r
s
tan
d
in
g
o
f
ac
tio
n
r
e
s
ea
r
ch
m
an
ag
em
e
n
t
in
s
ch
o
o
ls
an
d
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u
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T
h
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tr
en
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to
war
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a
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l
o
b
al
p
er
s
p
ec
tiv
e
o
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ed
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ca
tio
n
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m
an
ag
em
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an
d
ac
tio
n
r
esear
ch
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t
in
t
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er
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e
co
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ib
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to
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s
f
r
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m
v
ar
io
u
s
co
u
n
tr
ies id
en
tifie
d
in
th
e
an
aly
s
is
.
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
.
1
,
Feb
r
u
a
r
y
20
25
:
34
1
-
355
346
T
h
e
in
cr
ea
s
e
in
p
u
b
licatio
n
s
a
b
o
u
t
m
an
a
g
in
g
ac
tio
n
r
esear
c
h
in
s
ch
o
o
ls
s
h
o
ws
a
g
r
o
win
g
in
ter
est
in
its
b
en
ef
its
.
T
h
is
tr
en
d
m
atch
es
f
in
d
in
g
s
f
r
o
m
r
ec
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ies
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at
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ig
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co
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o
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ativ
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d
lead
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s
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ip
in
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ca
tio
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esear
ch
[
1
2
]
.
E
f
f
ec
ti
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ip
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d
k
n
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ted
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r
ev
io
u
s
r
esear
c
h
o
n
th
ese
th
em
es
[
1
3
]
,
[
1
4
]
.
3
.
1
.
2
.
Resea
rc
h ques
t
io
n 2
a.
P
ub
lica
t
io
n
nu
m
bers
T
h
e
an
aly
s
is
en
co
m
p
ass
es
a
wid
e
r
an
g
e
o
f
in
te
r
n
atio
n
al
j
o
u
r
n
als,
to
talin
g
2
3
8
,
wh
e
r
e
3
3
7
a
r
ticles
wer
e
p
u
b
lis
h
ed
.
No
tab
ly
,
f
iv
e
o
f
th
ese
jo
u
r
n
als
s
tan
d
o
u
t
b
y
p
u
b
lis
h
in
g
th
r
ee
o
r
m
o
r
e
ar
ticl
es
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,
in
d
icatin
g
th
eir
s
ig
n
if
ican
ce
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d
is
s
em
i
n
atin
g
r
esear
ch
o
n
m
an
a
g
in
g
ac
tio
n
r
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ch
in
s
ch
o
o
ls
.
E
d
u
ca
tio
n
al
Actio
n
R
esear
ch
lead
s
with
1
8
p
u
b
l
is
h
ed
ar
ticles,
d
em
o
n
s
tr
atin
g
its
k
ey
r
o
le
in
th
e
f
ield
.
T
h
is
co
n
ce
n
tr
atio
n
o
f
ar
ticles
in
a
s
elec
t
f
ew
jo
u
r
n
a
ls
h
ig
h
lig
h
ts
th
ei
r
in
f
lu
en
ce
a
n
d
th
e
f
o
cu
s
ed
n
atu
r
e
o
f
r
ese
ar
ch
d
is
s
em
in
atio
n
with
in
th
ese
p
u
b
licatio
n
s
.
b.
Co
un
t
ries o
f
pu
bli
ca
t
io
n
T
h
e
jo
u
r
n
als
ex
h
ib
it
a
d
iv
er
s
e
g
eo
g
r
a
p
h
ical
s
p
r
ea
d
,
with
a
n
o
tab
le
c
o
n
ce
n
tr
atio
n
in
t
h
e
Un
ited
Kin
g
d
o
m
an
d
So
u
th
A
f
r
ica.
T
h
is
d
is
tr
ib
u
tio
n
h
ig
h
lig
h
ts
t
h
e
g
lo
b
al
r
ea
ch
o
f
ac
tio
n
r
esear
ch
in
ed
u
ca
tio
n
al
m
an
ag
em
en
t,
with
co
n
tr
i
b
u
tio
n
s
f
r
o
m
v
ar
io
u
s
r
e
g
io
n
s
.
T
h
e
p
r
o
m
in
e
n
ce
o
f
th
e
Un
ited
Kin
g
d
o
m
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ts
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o
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r
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f
th
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f
iv
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m
o
s
t
in
f
lu
e
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tial
jo
u
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n
als,
r
ef
lects
its
lead
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g
r
o
le
i
n
p
u
b
lis
h
in
g
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n
s
ch
o
o
l
lead
er
s
h
i
p
an
d
ac
tio
n
r
esear
ch
.
Me
an
wh
i
le,
th
e
in
clu
s
io
n
o
f
So
u
th
A
f
r
i
ca
n
jo
u
r
n
als
u
n
d
er
s
co
r
es
th
e
g
r
o
win
g
im
p
o
r
tan
ce
o
f
ed
u
ca
tio
n
al
r
esear
ch
i
n
d
ev
elo
p
in
g
r
e
g
io
n
s
,
c
o
n
tr
ib
u
tin
g
v
alu
ab
le
p
er
s
p
ec
tiv
es to
t
h
e
g
l
o
b
al
d
is
co
u
r
s
e.
c.
I
m
pa
ct
f
a
ct
o
rs
T
h
e
im
p
ac
t
f
ac
to
r
s
s
h
o
w
th
e
s
ch
o
lar
ly
in
f
lu
en
ce
o
f
t
h
e
jo
u
r
n
als.
T
h
e
s
ch
o
o
l
lead
e
r
s
h
ip
an
d
m
an
ag
em
en
t
j
o
u
r
n
a
l
h
ad
th
e
h
ig
h
est
im
p
ac
t
f
ac
to
r
in
2
0
2
2
an
d
b
o
th
it
an
d
th
e
ed
u
c
atio
n
al
m
an
ag
em
e
n
t
ad
m
in
is
tr
atio
n
an
d
lead
e
r
s
h
ip
jo
u
r
n
al
h
a
d
to
p
SJ
R
s
co
r
es
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2
0
2
3
,
i
n
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icatin
g
th
eir
im
p
o
r
ta
n
ce
in
ed
u
ca
tio
n
al
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esear
ch
.
T
h
ese
h
ig
h
im
p
ac
t
f
ac
to
r
s
r
ef
lect
th
e
q
u
ality
a
n
d
r
elev
a
n
ce
o
f
t
h
e
r
esear
ch
p
u
b
lis
h
ed
in
t
h
ese
jo
u
r
n
als,
wh
ich
o
f
ten
f
o
cu
s
o
n
lead
er
s
h
ip
,
m
an
a
g
em
en
t,
an
d
p
o
licy
in
ed
u
ca
tio
n
.
T
h
e
s
tr
o
n
g
im
p
ac
t
f
ac
to
r
s
also
s
u
g
g
est
th
at
th
ese
jo
u
r
n
als
attr
ac
t
h
ig
h
-
q
u
ality
th
at
i
n
f
lu
en
ce
b
o
th
ac
ad
em
ic
r
esear
ch
an
d
p
r
ac
tical
ap
p
licatio
n
s
in
s
ch
o
o
ls
.
d.
I
nd
ex
ing
in
s
o
cia
l science
s
ci
t
a
t
io
n ind
ex
Nea
r
ly
h
alf
o
f
th
e
a
n
aly
ze
d
j
o
u
r
n
als
(
4
6
.
3
%)
ar
e
in
d
e
x
ed
i
n
th
e
SS
C
I
.
T
h
is
in
d
ex
i
n
g
e
n
h
an
ce
s
th
e
v
is
ib
ilit
y
an
d
ac
ce
s
s
ib
ilit
y
o
f
th
e
jo
u
r
n
als'
co
n
ten
t,
f
ac
ilit
atin
g
wid
e
r
d
is
s
em
in
atio
n
an
d
c
itatio
n
o
f
r
esear
ch
f
in
d
in
g
s
.
I
t
also
s
ig
n
if
ies
th
e
s
ch
o
lar
ly
r
ig
o
r
an
d
q
u
ality
o
f
t
h
e
jo
u
r
n
als,
as
in
clu
s
io
n
in
SS
C
I
r
eq
u
ir
es
m
ee
tin
g
ce
r
tain
citatio
n
an
d
im
p
ac
t c
r
it
er
ia.
e.
Wo
S
ca
t
eg
o
ri
es
T
h
e
m
o
s
t
co
m
m
o
n
ca
teg
o
r
ies
f
o
r
th
ese
jo
u
r
n
als
in
th
e
W
o
S
ar
e
ed
u
ca
tio
n
,
ed
u
ca
tio
n
al
r
esear
ch
,
an
d
m
an
ag
em
e
n
t.
T
h
is
h
ig
h
lig
h
ts
th
e
in
ter
d
is
cip
lin
ar
y
n
atu
r
e
o
f
ac
tio
n
r
esear
ch
in
s
ch
o
o
ls
,
co
v
er
in
g
m
u
ltip
le
f
i
e
l
d
s
.
I
n
s
u
m
m
a
r
y
,
t
h
es
e
i
m
p
o
r
t
a
n
t
t
r
a
i
ts
s
h
o
w
t
h
e
v
a
r
i
ed
a
n
d
i
m
p
a
c
t
f
u
l
j
o
u
r
n
a
l
s
t
h
a
t
s
h
a
r
e
r
e
s
e
a
r
c
h
o
n
m
a
n
a
g
i
n
g
a
c
t
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o
n
r
e
s
ea
r
c
h
i
n
s
ch
o
o
l
s
,
e
m
p
h
a
s
i
zi
n
g
h
o
w
s
c
h
o
l
ar
l
y
s
h
a
r
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a
n
d
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n
f
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e
n
c
e
h
e
l
p
i
m
p
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o
v
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u
ca
tio
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T
h
e
v
a
r
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f
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a
n
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o
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s
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r
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h
.
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f
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t
h
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Un
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e
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K
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A
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ti
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h
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d
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n
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g
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M
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[
1
5
]
,
[
1
6
]
.
T
h
i
s
a
l
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g
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t
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e
s
e
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r
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h
[
1
7
]
.
3
.
2
.
K
ey
wo
rds
bib
lio
m
et
ric
a
na
ly
s
is
Co
-
o
cc
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r
r
e
n
ce
an
aly
s
is
id
en
tifie
s
m
ea
n
in
g
f
u
l
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elatio
n
s
h
ip
s
a
n
d
p
atter
n
s
with
in
a
d
ataset,
p
ar
ticu
lar
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e
o
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f
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m
atic
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tio
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in
3
3
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p
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s
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s
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ter
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Fig
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cc
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T
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clu
s
ter
(
b
lu
e)
co
n
s
is
t
s
o
f
ca
r
e,
c
h
ild
r
en
,
im
p
ac
t,
in
ter
v
e
n
tio
n
,
an
d
m
o
d
el,
wh
ile
th
e
f
o
u
r
th
clu
s
ter
(
y
ello
w)
i
n
clu
d
es
em
p
o
wer
m
en
t,
h
ea
lth
,
PAR
,
p
r
o
g
r
a
m
,
a
n
d
r
ef
lectio
n
.
T
h
e
clu
s
ter
s
ar
e
clo
s
ely
g
r
o
u
p
ed
,
i
n
d
icatin
g
r
esear
ch
er
s
i
n
r
elate
d
clu
s
ter
s
ar
e
o
f
te
n
cited
to
g
eth
er
.
T
h
e
an
aly
s
is
f
o
u
n
d
1
6
2
lin
k
s
b
etwe
en
k
e
y
wo
r
d
s
,
with
a
t
o
tal
lin
k
s
tr
en
g
th
o
f
3
0
5
,
r
ep
r
esen
tin
g
th
e
d
eg
r
ee
o
f
ass
o
ciatio
n
am
o
n
g
th
em
.
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
Ma
n
a
g
eme
n
t
o
f a
ctio
n
r
esea
r
ch
in
s
ch
o
o
l
:
a
b
i
b
lio
metric a
n
a
lysi
s
(
A
z
lin
Mo
kta
r
)
347
Fig
u
r
e
3
.
Key
w
o
r
d
s
co
-
o
cc
u
r
r
en
ce
n
etwo
r
k
v
is
u
aliza
tio
n
m
a
p
T
h
e
th
em
atic
clu
s
ter
s
id
en
tifie
d
ar
e
as
i)
clu
s
ter
1
:
k
n
o
wled
g
e
an
d
lead
er
s
h
i
p
(
r
ed
)
f
o
cu
s
in
g
o
n
lead
er
s
h
ip
an
d
m
an
a
g
em
en
t;
ii)
clu
s
ter
2
:
ac
tio
n
r
esear
ch
an
d
ed
u
ca
tio
n
al
e
n
g
ag
em
e
n
t
(
g
r
ee
n
)
ad
d
r
ess
in
g
en
g
ag
em
e
n
t
an
d
ed
u
ca
ti
o
n
al
o
u
tco
m
es;
iii)
clu
s
ter
3
:
ca
r
e
an
d
im
p
ac
t
(
b
lu
e
)
co
n
ce
r
n
in
g
in
ter
v
en
tio
n
s
an
d
ca
r
e;
iv
)
clu
s
ter
4
:
em
p
o
wer
m
en
t
an
d
r
e
f
lectio
n
(
y
ello
w)
h
i
g
h
lig
h
tin
g
em
p
o
wer
m
en
t
an
d
r
ef
lectiv
e
p
r
ac
tices.
T
h
ese
clu
s
ter
s
ar
e
in
ter
co
n
n
ec
ted
,
with
lead
e
r
s
h
ip
in
f
l
u
en
cin
g
e
n
g
ag
em
en
t,
wh
ic
h
im
p
ac
ts
ca
r
e
an
d
in
ter
v
en
tio
n
s
,
wh
ile
em
p
o
wer
m
en
t a
n
d
r
ef
lectio
n
ass
ess
an
d
en
h
an
ce
t
h
ese
ef
f
ec
ts
.
3
.
2
.
1
.
Resea
rc
h ques
t
io
n 3
a.
Ut
ilizin
g
clus
t
er
s
o
f
k
ey
wo
rds
T
h
e
an
aly
s
is
id
en
tifie
s
2
5
k
ey
wo
r
d
s
o
r
g
a
n
ized
in
to
f
o
u
r
clu
s
ter
s
:
k
n
o
wled
g
e
an
d
lead
e
r
s
h
ip
,
ac
tio
n
r
esear
ch
an
d
en
g
ag
em
e
n
t,
ca
r
e
an
d
im
p
ac
t,
an
d
em
p
o
wer
m
en
t
an
d
PAR
.
T
h
ese
clu
s
ter
s
p
r
o
v
id
e
a
f
r
a
m
ewo
r
k
f
o
r
u
n
d
er
s
tan
d
in
g
in
ter
co
n
n
ec
ted
r
esear
ch
th
em
es
an
d
g
u
i
d
in
g
m
an
ag
e
m
en
t
s
tr
ateg
ies.
B
y
f
o
cu
s
in
g
o
n
t
h
ese
clu
s
ter
s
,
s
ch
o
o
ls
ca
n
a
d
o
p
t
a
m
o
r
e
h
o
lis
tic
ap
p
r
o
ac
h
to
m
a
n
ag
in
g
ac
tio
n
r
esear
ch
,
en
s
u
r
in
g
th
at
lead
er
s
h
i
p
an
d
k
n
o
wled
g
e
s
h
ar
in
g
a
r
e
i
n
teg
r
ated
with
teac
h
er
en
g
ag
em
en
t
an
d
p
a
r
ticip
ato
r
y
m
eth
o
d
s
.
T
h
is
a
p
p
r
o
ac
h
p
r
o
m
o
tes
co
n
tin
u
o
u
s
im
p
r
o
v
em
en
t
b
y
f
o
s
ter
in
g
a
c
o
llab
o
r
ativ
e
en
v
i
r
o
n
m
e
n
t
wh
er
e
r
esear
ch
is
u
s
ed
to
ad
d
r
ess
r
ea
l
-
wo
r
ld
e
d
u
ca
tio
n
al
ch
allen
g
es a
n
d
e
n
h
an
ce
teac
h
in
g
p
r
ac
tices.
b.
Addres
s
ing
inte
rc
o
nn
ec
t
ed
t
hem
es
T
h
e
clu
s
ter
s
h
ig
h
lig
h
t
r
elate
d
to
p
ics,
in
d
icatin
g
r
esear
ch
er
s
cited
in
o
n
e
clu
s
ter
ar
e
o
f
t
en
cited
in
o
th
er
s
.
T
h
is
in
ter
co
n
n
ec
ted
n
ess
u
n
d
er
s
co
r
es
t
h
e
n
ee
d
f
o
r
a
co
m
p
r
eh
en
s
iv
e
ap
p
r
o
ac
h
to
ac
tio
n
r
esear
c
h
m
an
ag
em
en
t
t
h
at
ad
d
r
ess
es
m
u
ltip
le
th
em
es
s
im
u
ltan
eo
u
s
ly
,
allo
win
g
s
ch
o
o
l
a
d
m
in
is
tr
ato
r
s
to
d
ev
el
o
p
h
o
lis
tic
s
tr
ateg
ies.
B
y
in
teg
r
atin
g
th
em
es
s
u
ch
as
lead
er
s
h
i
p
,
en
g
a
g
em
en
t,
a
n
d
em
p
o
wer
m
en
t,
s
ch
o
o
ls
ca
n
cr
ea
te
a
co
h
esiv
e
f
r
am
ew
o
r
k
th
at
en
co
u
r
a
g
es
co
llab
o
r
atio
n
am
o
n
g
e
d
u
ca
to
r
s
.
T
h
is
in
ter
co
n
n
ec
ted
a
p
p
r
o
ac
h
also
s
u
p
p
o
r
ts
co
n
tin
u
o
u
s
im
p
r
o
v
em
en
t
b
y
en
s
u
r
in
g
th
at
ac
tio
n
r
esear
ch
in
itiativ
es
ar
e
al
ig
n
ed
with
b
r
o
ad
e
r
ed
u
ca
tio
n
al
g
o
als,
f
o
s
ter
in
g
s
u
s
tain
ed
p
r
o
g
r
ess
in
teac
h
in
g
a
n
d
lear
n
in
g
p
r
ac
tices.
c.
H
o
lis
t
ic
a
pp
ro
a
ch
t
o
ma
na
g
e
m
ent
T
h
e
p
r
o
p
o
s
ed
a
p
p
r
o
a
ch
in
te
g
r
ates
s
tr
ateg
ies
en
co
m
p
ass
in
g
lead
er
s
h
ip
,
en
g
a
g
em
en
t,
ca
r
e,
an
d
em
p
o
wer
m
en
t.
B
y
le
v
er
ag
in
g
th
e
k
ey
wo
r
d
clu
s
ter
s
,
s
ch
o
o
l
ad
m
in
is
tr
atio
n
s
ca
n
tailo
r
m
a
n
ag
em
en
t
p
r
ac
tices
to
p
r
o
m
o
te
in
clu
s
iv
e
a
n
d
eq
u
i
tab
le
ed
u
ca
tio
n
al
en
v
ir
o
n
m
en
ts
,
r
ec
o
g
n
izin
g
t
h
e
m
u
ltifa
ce
ted
n
atu
r
e
o
f
ac
tio
n
r
esear
ch
.
T
h
is
ap
p
r
o
ac
h
en
s
u
r
es
th
at
lead
er
s
h
ip
f
o
s
ter
s
co
llab
o
r
atio
n
,
wh
ile
em
p
o
wer
m
en
t
s
tr
ateg
ies
en
co
u
r
a
g
e
teac
h
er
an
d
s
tu
d
e
n
t
p
ar
ticip
atio
n
in
th
e
r
esear
ch
p
r
o
ce
s
s
.
Ad
d
itio
n
ally
,
f
o
c
u
s
in
g
o
n
ca
r
e
an
d
en
g
ag
em
e
n
t
h
elp
s
to
cr
ea
te
a
s
u
p
p
o
r
tiv
e
e
n
v
ir
o
n
m
en
t
w
h
er
e
co
n
tin
u
o
u
s
r
e
f
lectio
n
an
d
im
p
r
o
v
em
en
t
ar
e
em
b
ed
d
e
d
in
ev
e
r
y
d
a
y
ed
u
ca
ti
o
n
al
p
r
ac
tices.
d.
I
m
plem
ent
a
t
io
n,
co
o
rdina
t
io
n,
a
nd
ev
a
lua
t
io
n
Key
to
th
e
a
p
p
r
o
ac
h
is
th
e
s
y
s
tem
atic
m
an
ag
em
en
t
o
f
ac
t
io
n
r
esear
ch
p
r
o
jects
th
r
o
u
g
h
in
itiatio
n
,
co
o
r
d
in
atio
n
,
an
d
ev
al
u
atio
n
.
T
h
is
en
s
u
r
es
co
n
tin
u
o
u
s
im
p
r
o
v
e
m
en
t
an
d
in
n
o
v
atio
n
,
en
h
an
cin
g
s
tu
d
en
t
o
u
tco
m
es
an
d
s
ch
o
o
l
ef
f
ec
tiv
en
ess
.
E
f
f
ec
tiv
e
im
p
lem
en
tatio
n
in
v
o
lv
es
s
ettin
g
clea
r
o
b
jectiv
es
an
d
alig
n
in
g
ac
tio
n
r
esear
ch
with
s
ch
o
o
l
p
r
io
r
ities
,
en
s
u
r
in
g
th
at
all
s
tak
e
h
o
ld
er
s
ar
e
e
n
g
ag
e
d
f
r
o
m
th
e
s
tar
t.
C
o
o
r
d
in
atio
n
en
s
u
r
es
th
at
r
eso
u
r
ce
s
an
d
ef
f
o
r
ts
ar
e
ef
f
icie
n
tly
m
an
a
g
ed
,
wh
ile
o
n
g
o
in
g
e
v
alu
atio
n
h
elp
s
m
o
n
ito
r
p
r
o
g
r
ess
,
r
ef
in
e
s
tr
ateg
ies,
an
d
m
ea
s
u
r
e
th
e
im
p
ac
t
o
f
th
e
ac
tio
n
r
esear
ch
o
n
b
o
th
teac
h
i
n
g
p
r
ac
tices
an
d
s
tu
d
en
t
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
.
1
,
Feb
r
u
a
r
y
20
25
:
34
1
-
355
348
ac
h
iev
em
en
t.
T
h
e
an
aly
s
is
id
e
n
tifie
d
2
5
k
ey
wo
r
d
s
in
f
o
u
r
clu
s
ter
s
,
h
ig
h
lig
h
tin
g
in
ter
co
n
n
e
cted
th
em
es
[
1
]
.
A
co
m
p
r
eh
e
n
s
iv
e
ap
p
r
o
ac
h
in
te
g
r
ates
lead
er
s
h
ip
,
en
g
a
g
em
en
t,
ca
r
e,
a
n
d
em
p
o
wer
m
en
t
s
t
r
ateg
ies
to
ad
d
r
ess
d
iv
er
s
e
ed
u
ca
tio
n
al
n
ee
d
s
[
2
]
–
[
4
]
.
E
f
f
ec
tiv
e
m
an
a
g
em
en
t
i
n
v
o
lv
es
in
itiatin
g
,
co
o
r
d
in
ati
n
g
,
a
n
d
e
v
alu
atin
g
r
esear
ch
in
itiativ
es to
d
r
iv
e
c
o
n
tin
u
o
u
s
im
p
r
o
v
e
m
en
t a
n
d
en
h
an
ce
s
tu
d
en
t
o
u
tco
m
es
[
5
]
,
[
6
]
.
3
.
3
.
An
ex
a
m
ina
t
io
n
o
f
t
he
c
o
-
a
utho
rsh
ip ba
s
ed
o
n bi
bli
o
m
et
ric
a
na
ly
s
is
B
y
lo
o
k
in
g
at
h
o
w
m
an
y
au
th
o
r
s
wo
r
k
to
g
eth
e
r
o
n
ar
tic
les,
th
e
s
tu
d
y
aim
s
to
s
ee
h
o
w
m
u
ch
co
llab
o
r
atio
n
h
ap
p
e
n
s
an
d
wh
o
th
e
m
ain
c
o
n
tr
ib
u
to
r
s
ar
e.
I
n
th
e
d
ataset,
it
i
s
o
b
s
er
v
ed
th
at
1
9
% o
f
th
e
ar
ticles
wer
e
au
th
o
r
ed
b
y
th
r
ee
in
d
iv
i
d
u
als,
wh
ile
1
6
%
h
a
d
f
o
u
r
au
t
h
o
r
s
,
a
n
d
1
3
%
in
v
o
lv
ed
two
c
o
-
au
th
o
r
s
as
s
h
o
wn
in
Fig
u
r
e
4
.
T
h
is
d
is
tr
ib
u
tio
n
s
h
ed
s
lig
h
t
o
n
th
e
co
llab
o
r
ativ
e
p
atter
n
s
am
o
n
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Fig
u
r
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4
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T
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Au
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A
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4
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3
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C
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4
4
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i
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4
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m
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3
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1
.
Resea
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a.
Co
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T
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ticles)
[
4
0
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[
4
3
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en
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r
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4
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s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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J
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2252
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8
8
2
2
Ma
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m
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es
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ch
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s
ch
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o
ls
.
d.
Dis
t
ributio
n o
f
a
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icles a
cr
o
s
s
co
un
t
ries
T
h
e
d
is
tr
ib
u
tio
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o
f
ar
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ac
r
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s
co
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n
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ies
r
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ea
ls
n
o
tab
le
co
n
tr
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tio
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s
f
r
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m
E
n
g
lan
d
(
2
0
%)
,
Au
s
tr
alia
(
1
6
%),
Un
ited
State
s
(
1
3
%),
So
u
th
Af
r
ica
(
6
%),
Sp
ain
(
6
%),
an
d
C
an
ad
a
(
5
%).
T
h
is
d
is
tr
ib
u
tio
n
h
ig
h
lig
h
ts
th
e
in
ter
n
atio
n
al
s
co
p
e
o
f
r
esear
c
h
o
n
m
a
n
ag
i
n
g
ac
tio
n
r
esear
ch
in
s
ch
o
o
l
s
,
with
s
ig
n
if
ican
t
co
n
tr
ib
u
tio
n
s
f
r
o
m
d
i
v
er
s
e
r
e
g
io
n
s
wo
r
ld
wid
e.
I
t
also
u
n
d
e
r
s
co
r
es
th
e
g
lo
b
al
r
elev
an
ce
a
n
d
ap
p
licab
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y
o
f
f
in
d
in
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s
in
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r
ess
in
g
ed
u
ca
ti
o
n
al
ch
allen
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es
an
d
ad
v
an
cin
g
p
r
ac
tices
in
d
if
f
er
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t
co
n
tex
ts
.
R
e
s
ea
r
ch
is
o
f
ten
co
llab
o
r
ativ
e,
with
m
an
y
ar
ti
cles
h
av
in
g
m
u
ltip
le
co
-
au
th
o
r
s
,
in
d
icatin
g
a
co
m
p
r
eh
en
s
iv
e
ex
p
lo
r
atio
n
o
f
to
p
ics
[
7
]
.
L
ea
d
in
g
co
n
tr
ib
u
to
r
s
in
clu
d
e
W
o
o
d
,
C
h
en
,
Hu
y
n
h
-
L
a
m
,
an
d
Vu
-
T
h
i
[
4
0
]
–
[
4
9
]
,
wh
o
h
a
v
e
s
ig
n
if
ican
tly
im
p
ac
ted
th
e
f
iel
d
[
8
]
,
[
9
]
.
T
h
e
g
lo
b
al
d
ataset
f
ea
tu
r
es
1
,
2
3
4
au
th
o
r
s
f
r
o
m
6
4
co
u
n
tr
ies,
s
h
o
win
g
b
r
o
ad
i
n
ter
est an
d
h
i
g
h
lig
h
tin
g
m
ajo
r
c
o
n
tr
ib
u
tio
n
s
f
r
o
m
r
e
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io
n
s
lik
e
E
n
g
lan
d
a
n
d
Au
s
tr
a
lia
[
1
0
]
,
[
1
1
]
.
3
.
4
.
G
eo
g
r
a
ph
ica
l dis
t
rib
utio
n o
f
pu
bli
ca
t
io
n
T
h
e
d
ataset
in
clu
d
es
1
,
2
3
4
au
th
o
r
s
f
r
o
m
6
4
co
u
n
tr
ies,
h
ig
h
lig
h
tin
g
th
e
in
ter
n
atio
n
al
n
atu
r
e
o
f
r
esear
ch
o
n
ac
tio
n
r
esear
ch
m
an
ag
em
en
t
in
s
ch
o
o
ls
.
L
ea
d
in
g
c
o
n
tr
ib
u
tio
n
ar
e
E
n
g
la
n
d
(
2
0
%),
Au
s
tr
alia
(
1
6
%),
th
e
Un
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States
(
1
3
%),
So
u
th
Af
r
ica
an
d
Sp
ain
(
6
%),
an
d
C
an
ad
a
(
5
%)
as
s
h
o
wn
in
Fig
u
r
e
5
.
T
h
is
g
eo
g
r
a
p
h
ic
d
iv
er
s
ity
d
e
m
o
n
s
t
r
ates
wid
esp
r
ea
d
in
ter
est
a
n
d
en
g
ag
em
e
n
t
in
th
e
to
p
ic
ac
r
o
s
s
d
if
f
er
en
t
r
eg
io
n
s
.
I
t
in
d
icate
s
th
at
ac
tio
n
r
esear
ch
m
an
ag
em
en
t
is
a
g
lo
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al
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v
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r
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en
r
ich
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d
b
y
co
n
tr
i
b
u
tio
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f
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m
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io
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ltu
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ca
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ts
.
An
aly
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g
r
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ch
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t
p
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ts
f
r
o
m
th
ese
co
u
n
tr
ies
ca
n
p
r
o
v
id
e
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a
b
le
in
s
ig
h
ts
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ti u
n
iq
u
e
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er
s
p
ec
tiv
es a
n
d
ap
p
r
o
ac
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es to
e
d
u
ca
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n
al
ch
allen
g
es.
Fig
u
r
e
5
.
Geo
g
r
ap
h
ical
d
is
tr
ib
u
tio
n
o
f
p
u
b
licatio
n
3
.
5
.
Ana
ly
s
is
o
f
hig
hly
cit
ed
pa
pers
T
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aly
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an
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v
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Sh
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5
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r
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citatio
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citizen
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[
5
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g
ar
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2
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citatio
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d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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J
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20
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5
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1
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Resea
rc
h ques
t
io
n 5
a.
Num
ber
o
f
a
utho
rs
T
h
e
m
o
s
t
cited
ar
ticle
h
as
1
1
au
th
o
r
s
,
in
d
icatin
g
a
c
o
llab
o
r
a
tiv
e
ef
f
o
r
t
with
d
iv
er
s
e
p
e
r
s
p
e
ctiv
es
an
d
ex
p
er
tis
e.
Su
ch
a
lar
g
e
n
u
m
b
er
o
f
co
n
tr
ib
u
to
r
s
s
u
g
g
ests
th
at
th
e
r
esear
ch
lik
ely
in
v
o
lv
e
d
in
ter
d
is
cip
lin
ar
y
co
llab
o
r
atio
n
,
in
co
r
p
o
r
atin
g
v
ar
io
u
s
v
iewp
o
in
ts
an
d
a
r
ea
s
o
f
s
p
ec
ializatio
n
.
T
h
is
k
in
d
o
f
team
wo
r
k
o
f
ten
en
h
an
ce
s
th
e
d
ep
th
an
d
b
r
e
ad
th
o
f
th
e
r
esear
ch
,
en
a
b
lin
g
a
m
o
r
e
co
m
p
r
eh
e
n
s
iv
e
an
aly
s
is
o
f
co
m
p
lex
ed
u
ca
tio
n
al
is
s
u
es.
Fu
r
th
er
m
o
r
e,
h
av
in
g
m
u
ltip
le
au
th
o
r
in
cr
ea
s
es
th
e
ar
ticle’
s
r
ea
ch
a
n
d
cr
e
d
ib
ilit
y
,
as
it
d
r
aws o
n
th
e
c
o
llectiv
e
k
n
o
wled
g
e
an
d
ex
p
e
r
tis
e
o
f
a
b
r
o
ad
o
f
s
ch
o
lar
s
.
b.
I
ns
t
it
utio
n
s
a
nd
a
f
f
ilia
t
io
ns
T
h
e
au
th
o
r
s
ar
e
af
f
iliated
with
v
ar
io
u
s
ac
ad
em
ic
in
s
titu
tio
n
s
,
in
clu
d
in
g
th
e
Un
iv
er
s
ity
o
f
C
alif
o
r
n
ia
(
J
en
n
if
er
an
d
Heid
i)
,
Dick
in
s
o
n
C
o
lleg
e,
Pen
n
s
y
lv
an
ia
(
C
an
d
ie)
,
Un
iv
er
s
ity
o
f
New
Me
x
ico
,
Alb
u
q
u
e
r
q
u
e
(
T
in
a
an
d
A
n
d
r
ea
)
,
R
u
tg
er
s
State
Un
iv
er
s
ity
,
New
J
er
s
ey
(
R
eb
ec
ca
)
,
C
o
r
n
ell
U
n
iv
er
s
ity
,
New
Yo
r
k
(
E
llen
,
Ma
tth
ew,
B
r
u
ce
,
Ma
r
ia
n
n
e,
an
d
B
o
n
n
ey
)
.
T
h
is
s
h
o
wca
s
es
th
e
co
llab
o
r
ativ
e
n
atu
r
e
o
f
th
e
r
esear
ch
.
T
h
e
in
v
o
lv
em
e
n
t
o
f
m
u
ltip
le
p
r
e
s
tig
io
u
s
in
s
titu
tio
n
s
h
ig
h
lig
h
ts
th
e
ar
ticle’
s
s
tr
o
n
g
ac
ad
em
ic
f
o
u
n
d
atio
n
an
d
s
u
g
g
ests
th
at
th
e
r
esear
ch
b
en
ef
ited
f
r
o
m
a
wid
e
r
an
g
e
o
f
i
n
s
titu
tio
n
al
r
eso
u
r
ce
s
an
d
ex
p
er
tis
e.
Su
ch
a
d
iv
er
s
e
n
etwo
r
k
o
f
af
f
iliatio
n
s
also
in
d
icate
s
th
e
g
lo
b
al
r
elev
a
n
ce
o
f
th
e
r
esear
ch
,
with
s
ch
o
lar
s
f
r
o
m
d
if
f
er
e
n
t r
eg
io
n
s
co
n
tr
ib
u
tin
g
to
a
c
o
m
m
o
n
g
o
a
l.
c.
Co
un
t
ries
re
prese
nte
d
T
h
e
au
th
o
r
s
ar
e
f
r
o
m
n
in
e
d
if
f
er
en
t
co
u
n
tr
ies,
with
th
e
Un
ited
States
b
ein
g
th
e
m
o
s
t
f
r
eq
u
en
t
,
h
ig
h
lig
h
tin
g
th
e
g
lo
b
al
en
g
a
g
em
en
t
an
d
d
iv
e
r
s
e
p
er
s
p
ec
tiv
es
in
th
e
r
esear
ch
.
T
h
e
p
r
esen
ce
o
f
m
u
ltip
le
in
s
titu
tio
n
s
h
ig
h
lig
h
ts
a
p
atte
r
n
o
f
c
o
llab
o
r
atio
n
o
f
1
1
au
t
h
o
r
s
f
r
o
m
p
r
o
m
in
en
t
Un
ited
States
in
s
titu
tio
n
s
,
n
o
tab
ly
C
o
r
n
ell
Un
iv
er
s
ity
,
i
n
d
icatin
g
its
s
ig
n
if
ican
t
r
o
le
i
n
th
e
r
esear
ch
f
ield
.
T
h
e
g
lo
b
al
d
iv
er
s
ity
o
f
th
e
au
th
o
r
s
ac
r
o
s
s
n
in
e
c
o
u
n
tr
ies
h
ig
h
lig
h
ts
th
e
in
ter
n
atio
n
al
im
p
ac
t a
n
d
b
r
o
ad
r
elev
an
ce
o
f
th
e
s
tu
d
y
.
T
h
e
m
o
s
t
cited
ar
ticle
f
ea
tu
r
e
s
1
1
au
th
o
r
s
f
r
o
m
v
ar
io
u
s
in
s
titu
tio
n
s
,
in
d
icatin
g
a
c
o
llab
o
r
ativ
e
ef
f
o
r
t
th
at
b
r
in
g
s
t
o
g
eth
er
d
iv
er
s
e
e
x
p
er
tis
e
[
7
]
.
T
h
is
alig
n
s
with
th
e
liter
atu
r
e
o
n
ac
tio
n
r
esear
ch
,
wh
ich
em
p
h
asizes
th
e
im
p
o
r
tan
ce
o
f
d
iv
er
s
e
p
e
r
s
p
ec
tiv
es
an
d
co
llab
o
r
ativ
es
ef
f
o
r
ts
f
o
r
r
o
b
u
s
t
r
esear
ch
o
u
tco
m
es
[
8
]
.
T
h
e
in
ter
n
atio
n
al
r
ep
r
esen
tatio
n
o
f
th
e
a
u
th
o
r
s
r
ef
lects
a
g
lo
b
al
en
g
ag
em
e
n
t
in
ac
tio
n
r
esear
c
h
,
h
i
g
h
lig
h
tin
g
th
e
wid
esp
r
ea
d
r
elev
an
ce
an
d
im
p
ac
t o
f
th
e
s
tu
d
y
ac
r
o
s
s
d
if
f
e
r
e
n
t c
o
u
n
tr
ies
[
9
]
,
[
1
0
]
.
3
.
6
.
I
nte
rna
t
io
na
l
c
o
lla
bo
ra
t
io
n a
nd
div
er
s
it
y
in re
s
ea
rc
h
co
ntr
ibu
t
io
ns
T
h
is
an
aly
s
is
is
to
u
n
d
er
s
tan
d
th
e
g
lo
b
al
n
atu
r
e
o
f
s
ch
o
lar
ly
en
g
a
g
em
en
t
an
d
th
e
s
ig
n
i
f
ican
ce
o
f
d
iv
er
s
e
p
er
s
p
ec
tiv
es
in
ad
d
r
es
s
in
g
ed
u
ca
tio
n
al
ch
allen
g
es
a
n
d
ad
v
an
cin
g
k
n
o
wled
g
e
i
n
s
ch
o
o
l
m
a
n
ag
em
e
n
t
an
d
lead
er
s
h
ip
.
Am
o
n
g
th
e
au
th
o
r
s
o
f
t
h
e
10
m
o
s
t
cited
ar
ticles,
th
eir
af
f
iliatio
n
s
s
p
an
n
in
e
d
if
f
er
e
n
t
co
u
n
tr
ies,
s
h
o
wca
s
in
g
th
e
i
n
ter
n
atio
n
al
c
o
llab
o
r
atio
n
an
d
d
iv
er
s
ity
in
r
esear
ch
c
o
n
tr
ib
u
tio
n
s
.
T
h
e
Un
ite
d
States
em
er
g
es
as
th
e
m
o
s
t
f
r
eq
u
en
t
co
u
n
tr
y
o
f
af
f
iliatio
n
a
m
o
n
g
th
ese
au
t
h
o
r
s
,
in
d
icatin
g
its
p
r
o
m
in
en
t
r
o
le
in
p
r
o
d
u
cin
g
in
f
lu
en
tial
r
esear
ch
in
th
e
f
ield
o
f
ac
tio
n
r
esear
ch
m
an
ag
em
e
n
t
in
s
ch
o
o
ls
as
s
h
o
wn
in
T
ab
le
6
.
T
h
is
h
ig
h
lig
h
ts
th
e
g
lo
b
al
n
atu
r
e
o
f
s
ch
o
la
r
ly
en
g
ag
e
m
en
t
in
a
d
d
r
ess
in
g
e
d
u
ca
tio
n
al
ch
allen
g
es
a
n
d
ad
v
an
cin
g
k
n
o
wled
g
e
in
s
ch
o
o
l
m
a
n
ag
em
en
t
an
d
lead
er
s
h
ip
.
Ad
d
itio
n
ally
,
th
e
p
r
esen
ce
o
f
au
th
o
r
s
f
r
o
m
v
ar
io
u
s
co
u
n
tr
ies
u
n
d
er
s
co
r
es
th
e
im
p
o
r
tan
ce
o
f
d
i
v
er
s
e
p
er
s
p
ec
tiv
es
an
d
in
s
ig
h
ts
in
tack
li
n
g
co
m
p
lex
is
s
u
es
with
in
th
e
ed
u
ca
tio
n
s
ec
to
r
.
Evaluation Warning : The document was created with Spire.PDF for Python.