Climate-driven spatial and temporal patterns in peatland pool biogeochemistry.

Peatland pools are freshwater bodies that are highly dynamic aquatic ecosystems because of their small size and their development in organic-rich sediments. However, our ability to understand and predict their contribution to both local and global biogeochemical cycles under rapidly occurring environmental change is limited because the spatiotemporal drivers of their biogeochemical patterns and processes are poorly understood. We used (1) pool biogeochemical data from 20 peatlands in eastern Canada, the United Kingdom, and southern Patagonia and (2) multi-year data from an undisturbed peatland of eastern Canada, to determine how climate and terrain features drive the production, delivering and processing of carbon (C), nitrogen (N), and phosphorus (P) in peatland pools.

Television viewing and its impact on childhood behaviors.

Despite the emergence of new media technologies, television remains the most widely used screen media format. Unfortunately, concerns have arisen about its effects on the health and well-being of children and adolescents. This article reviews television usage trends and television's impact on sleep, attention, and interpersonal relationships.

Occurrence of affective disorders compared to other psychiatric disorders in children and adolescents with 22q11.2 deletion syndrome.

Background: 22q11.2 deletion syndrome (22qDS) is a common genetic disorder with highly variable clinical manifestations that may include depression, bipolar disorder and schizophrenia. Studies of psychiatric disorders in youth with 22qDS often had methodological limitations.