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However, one particularity of the human species is that pair bonds are often formed without necessarily having the intention of reproduction.
In modern times, emphasis on the institution of marriage, generally described as a male-female bond, has obscured pair bonds formed by same-sex and transsexual couples, and that many heterosexual couples also bond for life without offspring, or that often pairs that do have offspring separate.
In the mid-twentieth century, the advent of birth control as well as safer procedures for abortion changed the equation considerably, and there was less pressure to marry as a means for satisfying sexual urges.
Thus, the concept of marriage is changing widely in many countries.
Historically, marriages in most societies were arranged by parents and older relatives with the goal not being love but legacy and "economic stability and political alliances", according to anthropologists.
► Participants seek to maintain meaningful connections and efficient use of time.
► Participants structure their participation so that others see them in a certain light.
Results point to a tension that exists between personal connection and professional responsibility, revolving around the essences of faculty members establishing personal and professional boundaries, maintaining appropriate and meaningful connections, structuring participation so that others see them in a certain light, and using their time efficiently.