Working women with children often receive support from their mothers. Mothers' free time is usually the main resource that allows them to provide support to their adult daughters. A secondary analysis was conducted using data from the National Family Research of Japan 2008, which was a random survey targeting people all over Japan. The subjects were 669 adult women with children whose mothers were still alive.

  The hierarchical logistic regression analyses on the three categories of support (providing monetary support, caring for children, and giving advice) did not reveal any significant effects of the employment status of mothers and daughters. However, an interaction effect was observed on the support of giving advice when mothers and daughters were in the same employment situation.

  Further research is necessary to understand the nature of the mothers' support in more detail and to analyze the paired data of mothers and their adult daughters.

  Three kinds of washing nets with different sizes of meshes, along with detergency, were examined for the purpose of reducing the amount of micro plastic discharged during washing with a drum type washing machine without lint filters. In case of a general washing net with a 0.4 ～ 0.5 mm mesh, more than twice as much fiber was discharged in the first washing compared with the subsequent washings, and even with two layers of washing nets, no mitigation effect was observed.

  It was clarified that a washing net with about a 0.03 mm fine mesh was effective in preventing the discharge of fiber dust during washing. In addition, it is considered that the more the washing is repeated, the shorter the length of fiber dust discharged and released into rivers.

  A comparison of detergency showed that there was no significant difference with up to two layers of a normal washing net, but when a washing net with about a 0.03 mm fine mesh was used, detergency significantly decreased.

  This study clarified the relationship between free space on a desk and the perception of tidiness, using an experimental design. Participants were presented with images of desks of different sizes with varying arrangements of free space, and they were asked to arrange the images in an order of increasing tidiness. The results were analyzed using the normalized-rank method. The findings demonstrated a positive relationship between the size of the free space on the desk and the perception of tidiness, indicating that the strength of the perception of tidiness changes depending on the size of the free space. An aspect of human visual information processing, called figure-ground segregation, influences this phenomenon. Additionally, the results implied that free spaces directly in front of the chairs led to a strong perception of tidiness and that stationery and other items placed within easy reach of the dominant hand of the person seated on the chair make people perceive the desk as tidy.