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Background: Couples seeking assisted reproductive donation procedures are faced with complex challenges throughout their treatment which can have important psychological impacts on their life. Selecting a suitable donor is one of the hardest decisions they will ever make. This study was carried out to provide an in-depth description of the experiences of couples in relation to donor selection. ...

Background selection, the effects of the continual removal of deleterious mutations by natural selection on variability at linked sites, is potentially a major determinant of DNA sequence variability. However, the joint effects of background selection and genetic recombination on the shape of the neutral gene genealogy have proved hard to study analytically. The only existing formula concerns t...

Abstract Heavy rainfall in extreme climates often causes natural disasters such as floods, landslides, and debris flows. Rainfall-induced slope instabilities are major geological (Glade Environ Geol 35:160–174, 1998; Dai et al. Eng 51:279–290, 1999; Iverson Water Resour Res 36:1897–1910, 2000; Lee Pradhan Landslides 4:33–41, 2007; Li 13:1109–1123, 2016a; Ecol 91:477–486, 2016b; Wu Hydro-mechani...