Is prenatal maternal mental problem associated with offspring's language skills at two years old?

The current study examined the impact of prenatal maternal anxiety on toddlers’ language development at two years old. Maternal anxiety status of 48, 36 and 32 pregnant women was evaluated using a validated questionnaire during pregnancy at the first, second and third trimesters respectively. Mothers were grouped into anxious and non-anxious groups according to the clinical cut-off. Two year postpartum anxiety level of all the mothers was obtained as a covariate. Children’s language abilities were assessed using the Cantonese version of the MacArthur Communicative Development Inventory (CCDI). Results showed that there was no significant difference between the language scores reported in the prenatally “anxious” and “non-anxious” groups in all three trimesters after controlling for the 2-year postpartum anxiety level. The results implied that effect of prenatal maternal stress is not associated with children’s language functioning. Language acquisition is a complex process influenced by multiple factors. This study highlighted some methodological considerations when conducting similar kind of study.published_or_final_versionSpeech and Hearing SciencesBachelorBachelor of Science in Speech and Hearing Science

废弃地向绿地的转变--封场垃圾填埋场生态更新研究[C]

封场垃圾填埋场被视为城市区域典型的废弃地。随着发展中国家固体废弃物的日益增加，封场垃圾填埋场得到越来越多重视并引发颇多隐患。本文以封场垃圾填埋场为例，对欧洲和美国进行的废弃地更新为绿地的案例进行研究。在此基础上，为中国废弃地生态更新措施提出了建议如下：对于陈旧的封闭垃圾填埋场而言，场地更新的最为可靠的方式为把填埋垃圾彻底清除、以更为可靠的方式运送到其他场地重新处置，再对场地修复。如果条件所限，上述工程目前无法开展，则可对封场垃圾填埋场区域作为绿地用途建设，加以防护并进行生态更新，从而尽可能消除其不良影响。对于发展中国家而言，固体废弃物的减量化、稳定化和再利用应当是垃圾相关问题的根本的应对之道