The relationship between perceived restorativeness and place attachment for hikers at Jeju Gotjawal Provincial Park in South Korea: the moderating effect of environmental sensitivity.

Objectives: Jeju Gotjawal Provincial Park provides visitors with opportunities for outdoor recreation and informs visitors of the environmental significance of the park's ecosystem. This study attempted to examine how the perceived restorativeness of park visitors influenced their place attachment. In addition, the moderating effect of environmental sensitivity on the hypothesized relationship was explored.

Cryopreservation of human embryos using ethylene glycol in controlled slow freezing.

Background: Ethylene glycol (EG) has been successfully used as a cryoprotectant for vitrification of mammalian formula embryos (including human embryos) due to its low formula weight and high permeation into cells compared with other cryoprotectants, including propylene glycol (PROH). This study was carried out to evaluate the permeation and toxicity of EG and to investigate the effects of its use in a slow-freezing protocol on post-thaw development of mouse embryos and on pregnancy outcome of frozen human embryos.

Methods: Spare human embryos after embryo transfer were cryopreserved using 1.