We conducted a case-control study using 190 Han children with and without autism to investigate prenatal and perinatal risk factors for autism in China. Cases were recruited through public special education schools and controls from regular public schools in the same region (Tianjin), with frequency matching on sex and birth year. Unadjusted analyses identified seven prenatal and seven perinata...

High-quality early child development initiatives are expensive. However, careful analysis of the returns on investment for such initiatives establishes that, from the government's perspective, the initiatives all but pay for themselves. The explanation for this is twofold. First, early childhood interventions enhance adult employability and earnings of program participants. This generates $8.2 ...

trust is an important element in human relations and cooperation between members of the organization. trust can be the interpersonal or inter-group, in special mode; or be generalized and related to the whole organization in general mode. special-generalized trust as a complex interactive process is influenced by various personal and social factors and variables. some of the most important fact...