Dragowski, E.A.; Halkitis, P.N.; Moeller, R.W.; Siconolfi, D.E. Social and sexual contexts explain sexual risk taking in young gay, bisexual, and other young men who have sex with men, ages 13-29 years. J. HIV/AIDS Soc. Serv. 2013, 12, 236-255....
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deprec-do.R deprec-funs.R deprec-lazyeval.R deprec-src-local.R deprec-tibble.R desc.R distinct.R doc-methods.R doc-params.R dplyr.R error.R explain.R filter.R funs.R generics.R group-by.R group-data.R group-map.R group-nest.R group-split.R group-trim.R grouped-df.R group...
SQL-- 根据app_id和plan_id来查看收入explain select app_id, plan_id, sum(pay_mnt) from ads.ads_grow_ad_material_statistic_df where date = 20220609 and material_id = 'ALL' group by app_id, plan_id; explain得出的结果如下: Plain TextSTAGE DEPENDENCIES: || Stage-1 is a root stage ||...
Day, K. M., & Devlin, R. A. (1997). Can volunteer work help explain the male-female earnings gap? Applied Economics, 29(6), 707-721.Day, K. M. & Devlin, R.A. (1997). Can volunteer work help explain the male-female earnings gap? Applied Economics, 29 (6), 707-721....
Session ID: 2024-12-17:92d99df33c7d6bf317e56f72 Player Element ID: politicoPlayer_m4s3xf2u5w0kb2lmloe OK Close Modal Dialog Ben Johansen07/18/2024, 10:51pm ET Jul 2024 When Donald Trump said, “I’m not supposed to be here tonight,” the crowd pushed back and started chantin...
Explain the condition under which the difference-in-differences model would lead to an unbiased estimator of the causal effect of interest. How can we test the condition? What is t_{\alpha/2, df} for a 99% confidence interval of the population mean based on a sample of 25 observation...
19, \({\delta }_{{{\rm{l}}}\gamma \left(F\right)={\int }_{0}^{F}{\delta }_{{{\rm{z}}}\left(f\right){df}\) where the integrand \({\delta }_{{{\rm{z}}}\left(f\right)=z\left(f\right)-{z}_{0}(f)\) is the projection on the force direction of the change...
The purpose of this study is to obtain more insight into the explanation and prognosis of consumer behavior in real and virtual museums. The analysis focuses on the influence of the museum environment on the museum patrons (rather than on the influence of the art objects). On the basis of ...
Models satisfactorily fit the data, as suggested by χ2 and RMSEA values (χ2 = 1.39, df = 3, P = 0.71, GFI = 0.98, RMSEA < 0.001). Solid lines indicate significant paths, while dashed lines indicate nonsignificant paths. R2 indicates the total variation in a dependent variable that is...