T
E
L
KO
M
NI
K
A
,
V
ol
.
14,
N
o.
3,
S
ept
em
ber
20
16,
pp.
9
3
3~
9
40
I
S
S
N
:
1
693
-
6
930
,
ac
c
r
edi
t
ed
A
b
y
D
IK
T
I,
D
e
c
r
e
e
N
o
:
58/
D
I
K
T
I
/
K
ep/
2013
D
O
I
:
10.
12928/
T
E
LK
O
M
N
I
K
A
.
v
1
4
i
3
.
2913
93
3
R
ec
ei
v
ed
O
c
t
ober
2
6
,
201
5
;
R
ev
i
s
ed
Ma
y
9
,
2
01
6
;
A
c
c
ept
e
d
J
une
1
,
201
6
Nu
r
ses S
c
h
ed
u
l
in
g
b
y
Co
n
si
d
er
in
g
t
h
e
Q
u
ali
f
ic
at
io
n
us
i
n
g I
n
te
ge
r
Li
ne
a
r
P
r
ogr
a
m
mi
ng
M
ay
a W
i
d
y
ast
i
t
i
*
,
A
m
r
il
A
m
a
n
, T
o
n
i B
a
k
h
t
ia
r
D
epar
t
e
m
ent
of
M
at
hem
at
i
c
s
,
B
ogor
A
gr
i
c
u
l
t
ur
a
l
U
ni
v
er
s
i
t
y
,
B
ogor
,
I
ndon
es
i
a
*
C
or
r
es
po
ndi
ng a
ut
hor
,
e
-
ma
i
l
:
m
ay
a.
w
i
dy
as
t
i
t
i
@
gm
ai
l
.
c
o
m
A
b
st
r
act
O
ne
of
pr
obl
em
s
t
ha
t
f
r
eq
uent
l
y
o
c
c
ur
s
in
ho
s
pi
t
a
l
m
anag
e
m
ent
i
s
nur
s
es
s
c
hed
ul
i
ng
pr
o
bl
em
.
A
s
ui
t
abl
e
s
c
hed
ul
e
i
s
nee
ded
i
n or
der
t
o
av
oi
d
f
at
i
gue
,
bot
h
p
hy
s
i
c
al
l
y
and
p
s
y
c
ho
lo
g
i
c
a
l
ly
,
w
hi
c
h
s
ub
s
equ
ent
l
y
m
ay
det
er
i
or
a
t
e t
hei
r
per
f
or
m
anc
e.
N
ur
s
e s
c
h
edul
i
ng i
s
c
om
m
onl
y
de
s
i
gned
by
t
he head
o
f
nur
s
e
m
anua
l
l
y
.
I
n t
h
is
r
es
ea
r
c
h
,
n
ur
s
e
s
c
he
dul
i
ng
pr
ob
l
em
i
s
m
ode
l
ed
by
c
o
ns
i
der
i
ng
t
he
qual
i
f
i
c
at
i
on
of
t
he
nur
s
e
s
an
d
t
he
m
odel
h
a
s
t
he
f
or
m
of
i
nt
eg
er
l
i
near
pr
ogr
am
m
i
ng.
T
he
o
bj
e
c
t
i
v
e
of
t
he
m
ode
l
i
s
t
o
m
ax
i
m
i
z
e t
he num
b
er
of
nur
s
e
’
s
day
-
o
ffs
.
Th
e
n
opt
i
m
i
z
at
i
on pr
obl
em
i
s
i
m
pl
em
e
nt
ed
t
o
nur
s
e
s
s
c
h
ed
u
li
ng
i
n t
h
e H
i
gh
C
ar
e U
n
i
t
a
nd t
h
e
E
m
er
genc
y
r
oom
o
f
R
um
ah S
ehat
T
er
pa
du D
om
pet
D
h
uaf
a P
ar
ung
B
ogor
.
Ke
y
w
o
rd
s
:
I
nt
eger
Li
n
ear
P
r
o
gr
am
m
i
ng,
nur
s
e s
c
hed
ul
i
n
g,
nur
s
e
qua
l
i
f
i
c
a
t
i
on
C
o
p
y
r
i
g
h
t
©
20
16 U
n
i
ver
si
t
a
s A
h
mad
D
ah
l
an
.
A
l
l
r
i
g
h
t
s r
eser
ved
.
1
.
I
n
tr
o
d
u
c
ti
o
n
S
c
hed
ul
i
ng
i
s
a
c
l
as
s
i
c
pr
o
bl
em
w
h
i
c
h
c
om
m
onl
y
oc
c
ur
s
i
n
m
an
y
c
or
p
or
at
i
ons
,
s
uc
h
as
i
n uni
v
er
s
i
t
y
,
A
bbas
z
ad
eh
et
a
l
.
ha
v
e
app
l
i
ed
Mem
et
i
c
A
l
gor
i
t
hm
t
o s
ol
v
e
un
i
v
er
s
i
t
y
c
our
s
es
s
c
hedul
i
ng pr
obl
em
[
1]
;
i
n t
r
ans
por
t
at
i
on
,
X
i
aon
i
et
al
.
hav
e s
ol
v
ed t
h
e opt
i
m
al
head
w
a
y
an
d bus
s
c
hedul
i
ng
c
om
bi
nat
i
on
of
a bus
l
a
ne
l
i
ne
[
2]
;
a
nd
i
n
h
os
p
i
t
a
l
,
A
g
y
e
i
et
al
.
ha
v
e
d
ev
e
l
o
ped
nur
s
e
s
c
hedul
i
ng
pr
ob
l
em
us
i
ng
g
oal
pr
ogr
am
m
i
ng [
3]
.
A
h
os
p
i
t
a
l
as
one of
hea
l
t
h f
ac
i
l
i
t
i
es
t
hat
s
er
v
es
peo
pl
e h
as
a m
aj
or
r
ol
e
i
n pr
ov
i
di
ng
hea
l
t
h c
ar
e
s
er
v
i
c
es
.
N
or
m
al
l
y
a h
os
pi
t
al
w
ou
l
d
ha
v
e s
e
v
er
a
l
s
er
v
i
c
es
,
s
uc
h
as
e
m
er
genc
y
,
out
p
at
i
ent
,
i
n
pat
i
en
t
,
s
ur
ger
y
,
a
nd
i
nt
ens
i
v
e
c
ar
e
u
n
it
.
S
om
e
of
r
es
ear
c
h
t
hat
has
bee
n
d
one
i
n
hos
pi
t
al
i
nc
l
ud
es
d
oc
t
or
s
s
c
hedu
l
i
n
g [
4
]
,
oper
at
i
on r
o
om
s
c
hedul
i
n
g [
5
]
,
and
nur
s
e s
c
hedu
l
i
ng
[
6
].
E
ac
h
s
er
v
i
c
e
u
ni
t
w
i
l
l
b
e
adm
i
ni
s
t
er
e
d
b
y
m
edi
c
al
p
r
of
es
s
i
onal
s
.
T
he
f
ac
i
l
i
t
y
w
oul
d
o
per
at
e
24 h
our
s
a d
a
y
,
s
ev
en
da
y
s
a
w
e
ek
.
A
nur
s
e i
s
one of
t
he i
m
por
t
ant
m
edi
c
al
pr
of
es
s
i
ona
l
s
i
n a hos
pi
t
al
.
N
ur
s
e
s
s
c
hedul
i
ng i
s
a c
om
m
on pr
obl
em
i
n hos
pi
t
a
l
s
.
G
ood s
c
hed
ul
e
w
ou
l
d a
v
oi
d nur
s
es
f
r
o
m
ov
er
t
i
r
ed ph
y
s
i
c
al
l
y
and
ps
y
c
h
ol
og
i
c
al
l
y
,
i
n
or
d
er
t
he
y
c
an
d
el
i
v
er
an
opt
i
m
u
m
s
er
v
i
c
e.
T
o
ac
hi
ev
e
t
hi
s
,
i
t
r
eq
ui
r
es
a
pr
ec
i
s
e and ef
f
i
c
i
ent
nur
s
e
s
c
hedul
i
ng t
ha
t
abi
des
b
y
hos
pi
t
a
l
’
s
r
ul
es
an
d
f
u
lf
ill
t
he num
ber
o
f
nur
s
es
r
equ
i
r
ed
i
n e
ac
h of
t
he
s
er
v
i
c
e u
ni
t
.
E
ac
h
nur
s
e i
s
ex
p
ec
t
ed
t
o
ha
v
e
s
k
i
l
l
s
r
e
qui
r
ed t
o
del
i
v
er
m
i
ni
m
u
m
s
t
andar
d s
er
v
i
c
es
.
A
l
l
nur
s
es
i
n t
he
em
er
genc
y
uni
t
s
ho
ul
d h
av
e
B
as
i
c
Li
f
e
Su
p
p
o
r
t
(
BL
S)
or
Em
e
r
g
e
n
c
y
F
i
r
s
t
Ai
d
(
EF
A)
or
G
ener
al
E
m
er
genc
y
L
i
f
e S
up
por
t
(
G
E
LS
)
or
A
d
v
anc
e L
i
f
e S
upp
o
rt
(A
L
S
) c
e
rt
i
f
i
c
a
t
e
s
[
7
]
.
E
ac
h nu
r
s
e w
ho
w
or
k
s
i
n H
i
gh C
a
r
e U
ni
t
(
H
C
U
)
s
houl
d
be
c
er
t
i
f
i
ed
w
i
t
h
B
L
S
,
h
as
s
k
i
l
l
s
i
n
us
i
n
g
m
oni
t
or
,
and
has
ex
per
i
enc
e
i
n
an
I
C
U
t
r
ai
ni
ng
[
8
]
.
T
hus
,
n
ur
s
es
c
an
not
be
as
s
i
gn
ed
t
o
a
n
y
u
n
it
,
bec
aus
e
t
h
e n
ur
s
e m
i
ght
not
ha
v
e
t
h
e
m
i
ni
m
u
m
r
equi
r
em
ent
f
or
t
he un
i
t
.
G
ener
al
l
y
,
t
her
e ar
e t
w
o
t
yp
e
s
of
s
c
hedul
i
n
g t
hat
n
or
m
al
l
y
us
ed
t
ha
t
ar
e
c
y
c
l
i
c
a
nd non
-
c
y
c
lic
s
c
h
e
d
u
l
in
g
s
.
M
i
l
l
ar
a
nd
K
i
r
a
gu
ha
v
e
s
ol
v
ed
c
y
c
l
i
c
and
no
n
-
c
y
c
l
i
c
nur
s
es
s
c
hedu
l
i
ng
us
i
n
g
net
w
or
k
pr
ogr
am
m
i
ng
[
9]
,
and
J
ena
l
et
al
.
ha
v
e
de
v
e
l
oped
a
c
y
c
l
i
c
al
n
ur
s
e
s
c
hedul
e
us
i
ng
g
oa
l
pr
ogr
am
m
i
ng [
10
]. T
h
i
s
appr
oac
h i
s
ai
m
ed t
o des
i
gn
a c
y
c
l
i
c
nur
s
e s
c
hedu
l
i
ng
b
y
us
i
ng t
h
e
i
nt
e
ger
l
i
near
pr
ogr
am
m
i
ng
w
i
t
h
c
o
ns
i
der
at
i
on
on
nur
s
e’
s
s
pec
i
f
i
c
ex
per
t
i
s
e
r
e
qui
r
ed
i
n
s
e
v
er
a
l
uni
t
s
i
n a
ho
s
p
it
a
l.
I
n
t
hi
s
r
es
ear
c
h,
nur
s
es
s
c
hedu
l
i
ng
pr
o
bl
em
i
s
m
odel
ed
b
y
c
ons
i
der
i
ng
t
h
e
qua
l
i
f
i
c
at
i
on
of
t
he nur
s
es
and
i
s
f
or
m
ul
at
ed us
i
ng I
nt
e
ger
L
i
ne
ar
P
r
ogr
om
m
i
ng t
ec
hni
q
ue.
T
he m
odel
w
il
l b
e
i
m
pl
em
ent
ed
f
or
t
he
c
as
e
at
R
um
ah
S
ehat
T
er
padu
D
om
pet
D
huaf
a
P
ar
u
n
g
,
B
ogor
.
T
he
obj
ec
t
i
v
e of
t
h
e m
odel
i
s
t
o
m
a
x
i
m
i
z
e t
he n
um
ber
of
nur
s
e’
s
da
y
-
o
ffs
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
1
6
9
3
-
6
930
T
E
L
KO
M
NI
K
A
V
o
l.
14
,
N
o
.
3,
S
ept
em
ber
2016
:
9
33
–
9
40
934
2.
T
h
e M
o
d
el
2.
1.
P
r
o
b
l
em
D
e
scr
i
p
t
i
o
n
T
he
des
i
gn
ed
s
c
he
dul
i
n
g
i
s
a
c
y
c
l
i
c
s
c
he
dul
i
n
g
f
or
1
8
nur
s
es
w
i
t
h
t
w
o
q
ua
l
i
f
i
c
a
t
i
on
s
t
o
be as
s
i
g
ned
i
n
t
w
o
un
i
t
s
,
H
i
gh
C
ar
e U
n
i
t
(
H
C
U
)
a
nd
E
m
er
genc
y
R
oom
(
E
R
)
.
E
ac
h nur
s
e c
an
onl
y
be
as
s
i
gn
ed
i
n
a
c
er
t
a
i
n
un
i
t
s
ac
c
or
di
ng
t
o
hi
s
or
her
q
ual
i
f
i
c
at
i
on.
N
ur
s
es
w
i
t
h i
nd
ex
v
al
ue
of
1
-
9 ha
ve
qua
l
i
f
i
c
at
i
on 1
and c
an
be as
s
i
g
ned i
n
ei
t
h
er
HCU
or
E
R
.
N
ur
s
es
w
i
t
h
i
ndex
v
a
l
u
e o
f
10
-
18 ha
ve
q
u
a
lif
i
c
at
i
on
2 a
nd
c
an
on
l
y
be as
s
i
gn
ed i
n E
R
.
E
ac
h
u
ni
t
i
s
c
ov
er
ed
b
y
t
hr
ee
w
or
k
i
ng
s
hi
f
t
s
:
m
or
ni
ng
s
hi
f
t
(
7
am
–
2
p
m
)
f
or
7
w
or
k
i
ng
hour
s
, e
v
en
i
n
g s
hi
f
t
(
2 pm
–
9
pm
)
f
or
7 w
or
k
i
ng ho
ur
s
,
and n
ig
h
t
s
h
if
t
(
9 pm
–
7
am
)
f
or
10
w
or
k
i
ng
hour
s
.
T
her
e
ar
e
t
w
o
t
y
p
es
of
da
y
-
of
f
.
F
i
r
s
t
,
nur
s
es
ar
e
pr
ov
i
d
ed
w
i
t
h
a
f
ul
l
da
y
-
of
f
,
i
n
ex
am
pl
e 24 h
our
s
a d
a
y
.
S
ec
ond,
w
e c
al
l
i
t
f
r
ee t
i
m
e w
her
e t
he n
ur
s
e c
an g
et
i
t
w
hen
he or
s
h
e
has
al
r
e
ad
y
s
pe
nt
a
ni
ght
s
hi
f
t
i
n
t
he
da
y
b
ef
or
e.
T
he s
et
of
al
l
r
ul
es
i
s
g
i
v
en
as
f
ol
l
o
w
s
:
1.
E
ac
h n
ur
s
e
w
or
k
s
on
ly
on
e
s
hi
f
t
a da
y
2.
T
he
m
i
ni
m
u
m
nu
m
ber
of
n
ur
s
es
ar
e
f
ul
f
i
l
l
ed
f
or
eac
h
s
hi
f
t
eac
h
da
y
.
T
he
num
ber
o
f
r
equi
r
e
d f
or
eac
h s
h
i
f
t
i
s
at
l
eat
2 n
ur
s
es
.
3.
E
ac
h n
ur
s
e c
ann
ot
w
or
k
i
n t
w
o c
ons
ec
ut
i
v
e n
i
g
ht
s
h
i
f
t
s
4.
E
ac
h nur
s
e c
an
not
b
e as
s
i
gn
ed i
n a
ni
ght
s
hi
f
t
f
ol
l
o
w
ed b
y
a m
or
ni
ng s
hi
f
t
or
an
ev
e
ni
ng s
h
i
f
t
i
n t
he n
ex
t
da
y
5.
E
ac
h
nur
s
e c
an
not
be
as
s
i
gned
i
n a
n e
v
e
ni
ng s
h
i
f
t
f
ol
l
o
w
ed
b
y
a
m
or
ni
ng s
h
i
f
t
i
n
t
he
nex
t
da
y
6.
E
ac
h
nur
s
e c
an
not
be
as
s
i
gned
i
n a
m
or
ni
ng s
hi
f
t
or
an
ev
en
i
ng
s
hi
f
t
or
a
da
y
of
f
f
ol
l
o
w
e
d b
y
a
f
r
ee t
i
m
e i
n t
h
e nex
t
da
y
7.
Af
t
e
r
ha
v
i
n
g
a
ni
ght
s
h
i
f
t
,
e
ac
h
nur
s
e
i
s
gr
ant
ed
a f
r
ee
t
i
m
e,
not
a
da
y
of
f
8.
E
ac
h n
ur
s
e
ge
t
s
a d
a
y
of
f
af
t
er
hav
i
ng
a f
r
ee t
i
m
e
9.
E
ac
h n
ur
s
e ge
t
s
at
l
eas
t
on
e da
y
of
f
w
i
t
h
i
n s
e
v
en
w
or
k
i
ng d
a
y
s
10.
E
ac
h n
ur
s
e ge
t
s
a d
a
y
of
f
a
t m
o
s
t
f
i
v
e
day
s
i
n
30
day
s
11.
E
ac
h
n
ur
s
e c
ann
ot
b
e as
s
i
gned
of
f
-
on
-
of
f
pat
t
er
n
12.
E
ac
h n
ur
s
e
w
or
k
s
bet
w
ee
n
170
t
o
1
76
hour
s
i
n
3
0 da
y
s
13.
E
ac
h n
ur
s
e
ge
t
s
m
or
ni
ng,
e
v
en
i
n
g,
a
nd n
i
g
ht
s
h
i
f
t
s
bet
w
een
6
to
9 d
a
y
s
i
n
30 d
a
y
s
.
2
.
2
.
N
o
ta
ti
o
n
s
a
n
d
D
e
c
i
s
i
o
n
V
a
r
i
a
b
l
e
s
Se
t
s
=
s
et
of
nur
s
es
,
=
1
,
2
,
…
,
1
8
=
s
et
of
nur
s
e qua
l
i
f
i
c
at
i
o
ns
,
=
1
,
2
=
s
et
of
uni
t
s
,
=
1
,
2
=
s
et
of
da
y
s
,
=
1
,
2
,
…
,
3
0
I
n
d
e
x
=
i
nd
ex
of
nur
s
es
,
∈
=
i
nd
ex
of
nur
s
e qu
al
i
f
i
c
at
i
o
n
s
,
∈
=
i
nd
ex
of
uni
t
s
,
∈
=
i
nd
ex
of
d
a
ys
,
∈
P
ar
am
et
e
r
=
n
um
ber
of
nur
s
es
r
equi
r
e
d on m
or
ni
ng
s
hi
f
t
at
uni
t
on da
y
=
n
um
ber
of
nur
s
es
r
equi
r
e
d on
ev
en
i
ng s
h
i
f
t
at
u
n
it
on da
y
=
n
um
ber
of
nur
s
es
r
equi
r
e
d on
ni
ght
s
h
i
f
t
at
u
n
it
on d
a
y
=
1
,
i
f
t
he nu
r
s
e
has
qu
al
i
f
i
c
at
i
o
n
0
,
ot
her
w
i
s
e
D
eci
s
i
o
n
V
a
r
i
ab
l
e
=
1
,
i
f
t
he n
ur
s
e
w
i
t
h qual
i
f
i
c
at
i
on
i
s
as
s
i
gn
ed a
m
o
r
ni
n
g s
hi
f
t
at
un
i
t
on d
ay
0
,
ot
her
w
i
s
e
=
1
,
i
f
t
he
nur
s
e
w
i
t
h qual
i
f
i
c
a
t
i
o
n
i
s
a
s
s
i
gne
d a
ev
eni
n
g
s
h
i
ft
a
t
un
i
t
on da
y
0
,
ot
her
w
i
s
e
=
1
,
i
f
t
he nur
s
e
w
i
t
h qual
i
f
i
c
at
i
on
i
s
as
s
i
g
ned
a
n
i
ght
s
h
i
ft a
t
u
ni
t
on day
0
,
ot
her
w
i
s
e
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
K
A
I
S
S
N
:
1
693
-
6
930
N
ur
s
es
S
c
hed
ul
i
n
g by
C
o
n
s
i
der
i
ng t
he Q
u
al
i
f
i
c
at
i
o
n
u
s
i
ng I
nt
eg
er
L
i
ne
ar
…
(
M
ay
a W
i
dy
as
t
i
t
i
)
935
=
1
,
i
f
t
he nur
s
e
w
i
t
h q
ual
i
f
i
c
at
i
on
i
s
as
s
i
gne
d a
f
r
ee
t
i
m
e on da
y
0
,
ot
her
w
i
s
e
=
1
,
i
f
t
he nur
s
e
w
i
t
h q
ual
i
f
i
c
at
i
on
i
s
as
s
i
gne
d a
d
a
y
o
ff
on day
0
,
ot
her
w
i
s
e
2.
3.
O
b
j
e
c
ti
v
e
fu
n
c
ti
o
n
T
he obj
ec
t
i
v
e f
unc
t
i
o
n i
s
t
o
m
a
x
i
m
i
z
e t
he t
ot
a
l
am
ount
of
da
y
s
of
f
.
Max
=
∑
∑
∑
3
0
=
1
2
=
1
1
8
=
1
2.
4.
C
o
n
st
r
ai
n
t
s
T
he
f
ol
l
o
w
i
ng
c
o
ns
t
r
ai
n
t
s
w
i
l
l
be i
m
pos
ed:
1.
E
ac
h n
ur
s
e
w
or
k
s
on
ly
on
e
s
hi
f
t
a da
y
.
If
=
1
t
h
en
∑
+
+
+
+
2
=
1
=
1
=
1
,
2
,
…
,
1
8
=
1
,
2
=
1
,
2
,
…
,
3
0
If
≠
1
t
h
en
=
0
,
=
0
,
=
0
,
=
0
,
=
0
=
1
,
2
,
…
,
1
8
=
1
,
2
=
1
,
2
=
1
,
2
,
…
,
3
0
2.
T
he
m
i
ni
m
u
m
nu
m
ber
of
nur
s
es
ar
e f
ul
f
i
l
l
e
d f
or
eac
h s
h
i
f
t
eac
h d
a
y
.
2
=
1
1
8
=
1
≥
2
=
1
1
8
=
1
≥
2
=
1
1
8
=
1
≥
=
1
,
2
=
1
,
2
,
…
,
3
0
3.
E
ac
h n
ur
s
e
c
ann
ot
w
or
k
i
n t
w
o c
ons
ec
ut
i
v
e n
i
g
ht
s
h
i
f
t
s
.
+
,
+
1
−
,
+
1
+
,
+
2
2
=
1
2
=
1
≤
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
8
4.
E
ac
h nur
s
e c
an
not
b
e as
s
i
gn
ed i
n a ni
ght
s
hi
f
t
f
ol
l
o
w
ed b
y
a m
or
ni
ng s
hi
f
t
or
an
ev
e
ni
ng s
h
i
f
t
i
n t
he n
ex
t
da
y
.
+
,
+
1
2
=
1
2
=
1
≤
1
+
,
+
1
2
=
1
2
=
1
≤
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
9
5.
E
ac
h
nur
s
e c
an
not
be
as
s
i
gned
i
n a
n e
v
e
ni
ng s
h
i
f
t
f
ol
l
o
w
ed
b
y
a
m
or
ni
ng s
h
i
f
t
i
n
t
he
nex
t
da
y
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
1
6
9
3
-
6
930
T
E
L
KO
M
NI
K
A
V
o
l.
14
,
N
o
.
3,
S
ept
em
ber
2016
:
9
33
–
9
40
936
+
,
+
1
2
=
1
2
=
1
≤
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
9
6.
E
ac
h
nur
s
e c
an
not
be
as
s
i
gned
i
n a
m
or
ni
ng s
hi
f
t
or
an
ev
en
i
ng
s
hi
f
t
or
a
da
y
of
f
f
ol
l
o
w
e
d b
y
a
f
r
ee t
i
m
e i
n t
h
e nex
t
da
y
.
+
,
+
1
2
=
1
2
=
1
≤
1
+
,
+
1
2
=
1
2
=
1
≤
1
+
,
+
1
2
=
1
≤
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
9
7.
Af
t
e
r
ha
v
i
n
g
a
ni
ght
s
h
i
f
t
,
e
ac
h
nur
s
e
i
s
gr
ant
ed
a f
r
ee
t
i
m
e,
not
a
da
y
of
f
.
+
,
+
1
2
=
1
2
=
1
≤
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
9
8.
E
ac
h n
ur
s
e
ge
t
s
a d
a
y
of
f
af
t
er
hav
i
ng
a f
r
ee t
i
m
e
.
+
,
+
1
2
=
1
≤
0
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
9
9.
E
ac
h n
ur
s
e ge
t
s
at
l
eas
t
on
e da
y
of
f
w
i
t
h
i
n s
e
v
en
w
or
k
i
ng d
a
y
s
.
+
,
+
1
+
,
+
2
+
,
+
3
+
,
+
4
+
,
+
5
+
,
+
6
2
=
1
≥
1
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
4
10.
E
ac
h n
ur
s
e ge
t
s
a d
a
y
of
f
at
m
os
t
f
i
v
e
day
s
i
n
30
day
s
.
3
0
=
1
2
=
1
≤
5
=
1
,
2
,
…
,
1
8
11.
E
ac
h
n
ur
s
e c
ann
ot
b
e as
s
i
gned
of
f
-
on
-
of
f
pat
t
er
n
.
+
,
+
1
+
,
+
1
+
,
+
1
2
=
1
2
=
1
+
,
+
2
≤
2
=
1
,
2
,
…
,
1
8
=
1
,
2
,
…
,
2
8
12.
E
ac
h n
ur
s
e
w
or
k
s
bet
w
ee
n
170
t
o
1
76
hour
s
i
n
3
0 da
y
s
.
1
7
0
≤
7
+
7
+
1
0
3
0
=
1
2
=
1
2
=
1
≤
1
7
6
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
K
A
I
S
S
N
:
1
693
-
6
930
N
ur
s
es
S
c
hed
ul
i
n
g by
C
o
n
s
i
der
i
ng t
he Q
u
al
i
f
i
c
at
i
o
n
u
s
i
ng I
nt
eg
er
L
i
ne
ar
…
(
M
ay
a W
i
dy
as
t
i
t
i
)
937
=
1
,
2
,
…
,
1
8
13.
E
ac
h n
ur
s
e
ge
t
s
m
or
ni
ng,
e
v
en
i
n
g,
a
nd n
i
g
ht
s
h
i
f
t
s
bet
w
een
6
to
9 d
a
y
s
i
n
30 d
a
y
s
.
6
≤
3
0
=
1
2
=
1
2
=
1
≤
9
6
≤
3
0
=
1
2
=
1
2
=
1
≤
9
6
≤
3
0
=
1
2
=
1
2
=
1
≤
9
=
1
,
2
,
…
,
1
8
14.
T
he nur
s
e w
ho l
ac
k
s
t
he r
equ
i
r
ed qu
al
i
f
i
c
at
i
o
n
c
an
n
ot
be as
s
i
gn
ed t
o t
h
e
c
er
t
ai
n
uni
t
.
=
=
=
0
=
1
,
2
,
…
,
1
8
=
,
∉
,
∈
=
1
,
2
,
…
,
3
0
15.
T
he v
ar
i
a
bl
es
,
,
,
and
ar
e
bi
na
r
y
.
,
,
,
,
∈
{
0
,
1
}
=
1
,
2
,
…
,
1
8
=
1
,
2
=
1
,
2
=
1
,
2
,
…
,
3
0
3.
R
e
su
l
t
s
a
n
d
A
n
a
l
y
s
i
s
T
he c
y
c
l
i
c
a
l
n
ur
s
e s
c
hedu
l
i
ng m
odel
i
n
R
um
ah S
ehat
T
er
padu D
om
pet
D
h
uaf
a
P
ar
ung,
B
og
or
w
as
m
odel
e
d
a
nd
s
ol
v
ed
us
i
n
g
I
n
t
eg
er
Li
near
P
r
ogr
am
m
i
ng
t
ec
hn
i
qu
e.
A
f
ew
m
odel
h
as
been
de
v
e
l
op
ed i
n or
der
t
o
get
a g
ood s
o
l
ut
i
on
.
T
he
m
ode
l
pr
es
ent
ed h
er
e i
s
t
h
e bes
t
m
odel
f
or
t
he n
ur
s
e
s
c
hedul
i
n
g.
T
abl
e
1,
T
abl
e
2,
an
d T
abl
e
3
s
u
m
m
ar
i
es
t
he
r
es
ul
t
of
t
h
e
m
odel
us
i
ng
I
nt
eg
er
Li
ne
ar
P
r
ogr
am
m
i
n
g t
ec
hn
i
q
ue.
T
abl
e 1 s
ho
w
s
t
he p
at
t
er
ns
of
t
he s
hi
f
t
of
t
he
w
or
k
i
ng
da
y
,
a f
r
ee t
i
m
e,
and a
da
y
of
f
f
o
r
30
d
a
y
s
s
c
he
du
l
i
n
g
p
er
i
o
d
dev
el
ope
d
b
y
us
i
ng
t
h
e
I
n
t
eger
L
i
n
ear
P
r
ogr
am
m
i
ng
t
ec
hni
que.
T
he
s
c
hedul
e s
at
i
s
f
i
ed a
l
l
t
he
c
ons
t
r
ai
n
t
s
.
T
her
e i
s
n
o
n
i
g
ht
s
hi
f
t
f
ol
l
o
w
e
d
b
y
a
m
or
ni
ng
s
h
i
f
t
or
a
n
ev
e
ni
ng s
hi
f
t
t
he nex
t
da
y
,
and al
s
o t
h
er
e i
s
no ev
en
i
n
g s
hi
f
t
f
ol
l
o
w
ed b
y
a m
or
ni
n
g s
hi
f
t
t
he nex
t
da
y
i
s
as
s
i
g
ned
t
o
eac
h s
c
hedu
l
e
’
s
pat
t
er
n.
T
abl
e 2
s
ho
w
s
t
he s
um
m
ar
y
f
or
t
he
num
ber
of
s
hi
f
t
s
,
f
r
ee t
i
m
e,
and
d
a
y
of
f
f
or
eac
h
sch
edul
e’
s
pat
t
er
n.
I
n 30 d
a
y
s
of
s
c
hedul
i
ng p
er
i
o
d,
al
l
nur
s
es
ha
v
e t
h
e s
am
e
5 da
y
s
of
t
ot
a
l
num
ber
of
ni
ght
s
hi
f
t
per
t
h
e
30
da
y
s
p
er
i
o
d.
A
n
d
al
s
o
t
he
y
ha
v
e
b
et
w
e
en
6
t
o
9
w
or
k
i
ng
da
y
s
,
3
-
4 da
y
s
of
f
r
ee t
i
m
e
,
and
a
ls
o
17
0
-
17
6
w
or
k
i
ng h
our
s
.
T
abl
e
3
s
h
o
w
s
t
h
e
s
um
m
ar
y
f
or
t
he
num
ber
of
s
hi
f
t
f
or
eac
h
d
a
y
.
I
t
c
a
n
b
e
s
een
t
hat
i
n
HCU,
t
her
e
ar
e
2
-
3
nur
s
es
i
s
as
s
i
gned
i
n
m
or
ni
ng s
hi
f
t
,
w
h
er
eas
t
her
e ar
e o
nl
y
t
w
o
n
ur
s
es
is
as
s
i
gne
d
i
n
ot
her
s
hi
f
t
s
.
I
n
E
R
,
t
her
e
ar
e
2
-
4
nur
s
es
i
n
eac
h
s
hi
f
t
ev
er
y
da
y
.
I
t
s
ho
w
s
t
hat
t
he
num
ber
of
nur
s
es
r
equi
r
ed
on e
ac
h s
hi
f
t
i
n e
v
er
y
uni
t
c
an
be s
at
i
s
f
i
ed as
ex
p
ec
t
ed a
nd t
he
nur
s
e i
n
eac
h
un
i
t
w
or
k
s
ac
c
or
di
ng
t
o t
he r
e
qui
s
i
t
e
qua
l
i
f
i
c
at
i
ons
.
T
abl
e 4 s
ho
w
s
t
he m
anu
al
s
c
hedu
l
e
pr
epar
e
d b
y
t
he he
ad
n
ur
s
e i
n o
ne un
i
t
.
T
he
s
c
hedul
e pr
oduc
e
d m
anual
l
y
has
s
ho
w
n t
ha
t
t
her
e i
s
an i
nc
ons
i
s
t
e
nc
y
i
n t
h
e t
o
t
al
num
ber
o
f
w
or
k
i
ng ho
ur
s
f
or
t
he
nur
s
es
.
T
he di
s
t
r
i
but
i
on
of
ni
ght
s
h
i
f
t
i
s
a
l
s
o
unb
al
anc
e
.
T
her
e i
s
one
nur
s
e
w
h
o has
bee
n as
s
i
g
n
ed i
n a
ni
ght
s
h
i
f
t
5 d
a
y
s
i
n
30 d
a
y
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
1
6
9
3
-
6
930
T
E
L
KO
M
NI
K
A
V
o
l.
14
,
N
o
.
3,
S
ept
em
ber
2016
:
9
33
–
9
40
938
T
abl
e 1.
N
ur
s
es
s
c
hedu
l
i
ng
de
v
el
ope
d us
i
ng I
nt
e
ger
L
i
near
P
r
ogr
am
m
i
ng t
ec
hn
i
q
ue
Da
y
N
ur
s
es
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
M
E
N
E
M
E
D
F
N
N
E
M
E
M
F
E
N
D
2
M
D
N
N
E
E
M
D
F
N
E
M
E
E
D
N
F
M
3
E
M
F
N
N
E
M
M
D
F
E
N
D
E
M
N
D
M
4
N
M
D
F
N
E
M
M
E
D
E
N
M
E
N
F
M
E
5
N
M
E
D
F
D
N
M
E
M
E
F
E
D
N
D
M
N
6
F
M
E
M
D
N
N
E
E
N
D
D
E
M
F
M
E
N
7
D
M
E
M
M
N
F
E
N
N
N
E
N
M
D
M
E
F
8
E
M
N
M
E
F
D
D
N
F
N
E
N
M
M
E
D
D
9
E
D
N
E
N
D
M
M
F
D
F
E
F
N
M
N
E
M
10
N
E
F
D
N
M
E
M
D
M
D
N
D
N
M
N
E
E
11
N
E
D
E
F
M
N
N
M
M
M
N
M
F
N
F
E
E
12
F
N
M
E
D
E
N
N
M
M
M
F
E
D
N
D
N
D
13
D
N
M
E
M
E
F
F
N
N
M
D
E
M
F
E
N
M
14
M
F
E
N
M
E
D
D
N
N
E
M
D
E
D
N
F
M
15
M
D
E
N
M
D
N
E
F
F
E
E
M
N
E
N
D
M
16
M
N
D
F
E
M
N
E
D
D
E
N
M
N
E
F
M
M
17
M
N
M
D
E
E
F
N
M
E
D
N
N
F
E
D
M
M
18
E
F
M
E
D
N
D
N
M
E
M
F
N
D
N
M
E
D
19
E
D
E
N
M
N
M
F
D
E
M
D
F
M
N
E
N
E
20
D
M
N
N
E
F
E
D
M
E
M
M
D
M
F
N
N
E
21
M
E
N
F
N
D
E
E
M
E
N
M
M
M
D
N
F
N
22
E
N
F
D
N
M
E
E
M
D
N
M
E
N
M
F
D
N
23
E
N
D
M
F
M
E
E
N
M
F
E
N
N
M
D
M
F
24
N
F
M
M
D
M
E
E
N
E
D
E
N
F
E
M
N
D
25
N
D
M
M
E
N
D
E
F
E
M
D
F
D
N
M
N
E
26
F
E
E
M
N
N
M
D
D
E
M
N
D
E
N
M
F
E
27
D
E
N
M
N
F
M
M
E
E
N
N
M
E
F
E
D
E
28
M
E
N
E
F
D
N
M
E
D
N
F
M
E
D
D
M
N
29
M
E
F
D
D
M
N
N
E
M
F
D
E
D
N
M
E
N
30
D
E
D
M
M
E
F
N
N
M
D
M
E
M
N
E
N
F
D
es
c
r
i
pt
i
on
:
M:
m
or
ni
ng
s
h
i
ft
; E
:
ev
eni
ng
s
h
i
ft
; N
:
ni
ght
s
h
if
t
;
F
:
f
r
ee t
i
m
e
; D
:
day
of
f
:
a
s
s
i
gned
i
n H
C
U
:
a
s
s
i
gned
i
n E
R
T
abl
e
2
.
S
um
m
ar
y
of
t
h
e n
um
ber
of
s
hi
f
t
s
,
f
r
ee t
i
m
e,
da
y
of
f
,
and
w
or
k
i
ng ho
ur
s
Nu
r
s
e
W
o
r
k
i
ng T
i
m
e
F
r
ee
T
im
e
D
a
y
s
O
ff
W
o
r
k
i
ng H
our
s
M
or
ni
ng
E
v
eni
ng
N
i
ght
1
9
7
6
3
5
172
2
7
9
6
3
5
172
3
6
7
8
4
5
171
4
9
7
6
3
5
172
5
7
6
8
4
5
171
6
7
9
6
3
5
172
7
7
6
8
4
5
171
8
7
9
6
3
5
172
9
7
6
8
4
5
171
10
7
9
6
3
5
172
11
8
8
6
3
5
172
12
7
6
8
4
5
171
13
7
9
6
3
5
172
14
9
7
6
3
5
172
15
7
6
8
4
5
171
16
7
6
8
4
5
171
17
6
7
8
4
5
171
18
8
8
6
3
5
172
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
K
A
I
S
S
N
:
1
693
-
6
930
N
ur
s
es
S
c
hed
ul
i
n
g by
C
o
n
s
i
der
i
ng t
he Q
u
al
i
f
i
c
at
i
o
n
u
s
i
ng I
nt
eg
er
L
i
ne
ar
…
(
M
ay
a W
i
dy
as
t
i
t
i
)
939
T
abl
e 3.
s
um
m
ar
y
f
or
t
he
n
um
ber
of
s
hi
f
t
f
or
eac
h da
y
Q
ua
l
i
f
i
c
a
t
i
on
s
Da
ys
N
u
r
s
es
M
or
n
i
n
g
Ev
en
i
n
g
N
i
g
h
t
HCU
ER
HCU
ER
HCU
ER
1
2
1
2
1
2
1
2
1
2
1
2
1
2
-
-
2
2
-
1
3
2
-
-
2
2
2
-
-
2
2
-
-
3
2
-
-
2
3
2
-
1
2
2
-
-
2
2
-
-
2
4
2
-
1
2
2
-
-
3
2
-
-
2
5
2
-
-
2
2
-
-
2
2
-
-
2
6
2
-
-
2
2
-
1
2
2
-
-
2
7
3
-
-
2
2
-
-
2
2
-
-
3
8
2
-
-
2
2
-
-
2
2
-
-
2
9
2
-
-
2
2
-
-
2
2
-
-
2
1
0
2
-
-
2
2
-
-
2
2
-
-
3
1
1
2
-
-
4
2
-
-
2
2
-
1
1
1
2
2
-
-
2
2
-
-
2
2
-
1
1
1
3
2
-
-
3
2
-
-
3
2
-
-
3
1
4
2
-
-
2
2
-
-
2
2
-
-
3
1
5
2
-
-
2
2
-
-
3
2
-
-
3
1
6
2
-
-
3
2
-
-
2
2
-
-
2
1
7
2
-
1
2
2
-
-
2
2
-
-
2
1
8
2
-
-
2
2
-
-
2
2
-
-
2
1
9
2
-
-
2
2
-
-
3
2
-
-
2
2
0
2
-
-
3
2
-
-
2
2
-
-
2
2
1
2
-
-
3
2
-
1
1
2
-
-
3
2
2
2
-
-
2
2
-
1
1
2
-
-
3
2
3
2
-
-
3
2
-
1
1
2
-
-
2
2
4
2
-
1
1
2
-
-
3
2
-
-
2
2
5
2
-
-
2
2
-
-
2
2
-
-
2
2
6
2
-
-
2
2
-
-
3
2
-
-
2
2
7
2
-
1
1
2
-
-
4
2
-
-
2
2
8
2
-
-
2
2
-
1
1
2
-
-
2
2
9
2
-
-
2
2
-
-
2
2
-
-
2
3
0
2
-
-
3
2
-
-
2
2
-
-
2
T
abl
e 4.
Man
ua
l
N
ur
s
es
S
c
hedu
l
i
ng
pr
epar
ed b
y
t
he
h
ead
nur
s
e i
n o
ne u
ni
t
Da
ys
N
u
r
s
es
1
2
3
4
5
6
7
8
9
1
D
M
E
E
N
N
D
N
M
2
M
E
N
D
N
F
M
F
E
3
M
E
N
N
F
D
M
D
E
4
E
N
F
N
D
M
E
M
E
5
E
N
D
F
M
E
E
M
N
6
N
F
M
D
M
E
N
E
N
7
N
D
M
M
E
E
N
N
F
8
F
M
E
M
E
N
F
N
D
9
D
D
E
E
N
N
D
F
M
1
0
M
E
N
E
N
F
M
D
D
1
1
M
E
N
N
F
D
D
M
E
1
2
E
N
F
N
D
M
E
M
E
1
3
E
N
D
F
M
E
E
D
N
1
4
N
F
M
D
M
E
N
E
N
1
5
N
D
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A
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X
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M
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our
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h
.
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4(
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:
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-
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[
10]
J
ena
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R
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s
m
ai
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ughal
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Pro
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m
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.
I
T
B
J
our
n
al
o
f
S
c
i
en
c
e
.
2011
;
43A
(
3)
:
1
51
-
164
.
Evaluation Warning : The document was created with Spire.PDF for Python.