Results 91 to 100 of about 2,980,636 (161)

A novel fractional mathematical model of COVID-19 epidemic considering quarantine and latent time. [PDF]

open access: yesResults Phys, 2021
Pandey P   +4 more
europepmc   +1 more source

Difference-in-Difference analysis of the utilization of maternal and neonatal care.

open access: yes, 2019
Difference-in-Difference analysis of the utilization of maternal and neonatal care.
Ruoyan Gai Tobe (102986)   +3 more
core   +1 more source

The Estimation of Causal Effects by Difference-in-Difference Methods [PDF]

open access: yes
This survey gives a brief overview of the literature on the difference-in-difference (DiD) estimation strategy and discusses major issues using a treatment effect perspective.
Michael Lechner
core  

Difference-in-difference estimates for mango producers, distributors & processors.

open access: yes
Difference-in-difference estimates for mango producers, distributors & processors.
Bright Ketadzo (18297587)   +4 more
core   +1 more source

PM2.5 Cooperative Control with Fuzzy Cost and Fuzzy Coalitions. [PDF]

open access: yesInt J Environ Res Public Health, 2019
Zhou Z   +7 more
europepmc   +1 more source

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