also demonstrate how gender differences, not necessarily corresponding precisely with sex, may "constrain or facilitate political" actors. Gender as a process has two central manifestations in political science research, firstly in determining "the differential effects of structures and policies upon men and women," and secondly, the ways in which masculine and feminine political actors "actively work to produce favorable gendered outcomes". With regard to gender studies, Jacquetta Newman states that although sex is determined biologically, the ways in which people express gender is not. Gendering is a socially constructed process based on culture, though often cultural expectations around women and men have a direct relationship to their biology. Because of this, Newman argues, many privilege sex as being a cause of oppression and ignore other issues like race, ability, poverty, etc. Current gender studies classes seek to move away from that and examine the intersectionality of these factors in determining people's lives. She also points out that other non-Western cultures do not necessarily have the same views of gender and gender roles. Newman also debates the meaning of equality, which is often considered the goal of feminism; she believes that equality is a problematic term because it can mean many different things, such as people being treated identically, differently, or fairly based on their gender. Newman believes this is problematic because there is no unified definition as to what equality means or looks like, and that this can be significantly important in areas like public policy. Social construction of sex hypotheses The World Health Organization states that 'Gender refers to the characteristics of women, men, girls and boys that are socially constructed.' Sociologists generally regard gender as a social construct, and various researchers, including many feminists, consider sex to only be a matter of biology and something that is not about social or cultural construction. For instance, sexologist John Money suggests the distinction between biological sex and gender as a role. Moreover, Ann Oakley, a professor of sociology and social policy, says "the constancy of sex must be admitted, but so also must the variability of gender." Thus, sex is regarded as a category studied in biology (natural sciences), while gender is studied in humanities and social sciences. Lynda Birke, a feminist biologist, maintains "'biology' is not seen as something which might change." Therefore, it is stated that sex is something that does not change, while gender can change according