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Table 2. 
Fitted parameters β for the negative binomial regression in Eq. 6, computed for each journal individually. Four fits are displayed for each journal, depending on whether the predictor is siNC (NC) or siNP (NP), and whether time is measured in years (cf. section 3.2) or in publications (cf. section 3.4). The stated significance levels of the estimated parameter β are given as *** (< 0.001), ** (< 0.01), * (< 0.05)
siTimeαβ
PR 
NC years 0.768 −0.022*** 
pubs 0.903 −0.003* 
NP years 0.721 −0.010*** 
pubs 0.922 −0.006*** 
PRA 
NC years 1.055 −0.001*** 
pubs 0.637 0.000 
NP years 1.095 −0.005*** 
pubs 0.625 0.001 
PRC 
NC years 1.141 −0.000* 
pubs 1.132 0.000 
NP years 1.130 −0.000 
pubs 1.141 −0.000 
PRE 
NC years 0.907 −0.001*** 
pubs 0.971 −0.000 
NP years 0.941 −0.004*** 
pubs 0.992 −0.002** 
RMP 
NC years 1.987 −0.004* 
pubs 1.482 −0.003 
NP years 2.022 −0.008* 
pubs 1.534 −0.008* 
JHEP 
NC years 0.050 −0.002 
pubs −0.251 −0.001 
NP years 0.035 0.000 
pubs −0.286 −0.000 
PR-HEP 
NC years 1.292 −0.005*** 
pubs 1.870 −0.000* 
NP years 1.321 −0.004*** 
pubs 1.907 −0.001*** 
Phys. Lett. 
NC years 0.813 −0.007*** 
pubs 1.088 −0.009*** 
NP years 0.824 −0.004*** 
pubs 1.094 −0.005*** 
Nuc. Phys. 
NC years 1.156 −0.007*** 
pubs 1.199 −0.005*** 
NP years 1.211 −0.005*** 
pubs 1.239 −0.004*** 
siTimeαβ
PR 
NC years 0.768 −0.022*** 
pubs 0.903 −0.003* 
NP years 0.721 −0.010*** 
pubs 0.922 −0.006*** 
PRA 
NC years 1.055 −0.001*** 
pubs 0.637 0.000 
NP years 1.095 −0.005*** 
pubs 0.625 0.001 
PRC 
NC years 1.141 −0.000* 
pubs 1.132 0.000 
NP years 1.130 −0.000 
pubs 1.141 −0.000 
PRE 
NC years 0.907 −0.001*** 
pubs 0.971 −0.000 
NP years 0.941 −0.004*** 
pubs 0.992 −0.002** 
RMP 
NC years 1.987 −0.004* 
pubs 1.482 −0.003 
NP years 2.022 −0.008* 
pubs 1.534 −0.008* 
JHEP 
NC years 0.050 −0.002 
pubs −0.251 −0.001 
NP years 0.035 0.000 
pubs −0.286 −0.000 
PR-HEP 
NC years 1.292 −0.005*** 
pubs 1.870 −0.000* 
NP years 1.321 −0.004*** 
pubs 1.907 −0.001*** 
Phys. Lett. 
NC years 0.813 −0.007*** 
pubs 1.088 −0.009*** 
NP years 0.824 −0.004*** 
pubs 1.094 −0.005*** 
Nuc. Phys. 
NC years 1.156 −0.007*** 
pubs 1.199 −0.005*** 
NP years 1.211 −0.005*** 
pubs 1.239 −0.004*** 
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