how is it connected to science?
Unethical scientific research was conducted. Nazi scientists conducted horrific experiments on Jewish people during the Holocaust.
Dehumanization
Relatively recent history has seen the relationship between dehumanization and science result in unethical scientific research. The Tuskegee syphilis experiment and Nazi human experimentation on Jewish people are two such examples. In the former, African Americans with syphilis were recruited to participate in a study about the course of the disease. Even when treatment and a cure were eventually developed, they were withheld from the African-American participants so that researchers could continue their study. Similarly, Nazi scientists conducted horrific experiments on Jewish people during the Holocaust. 
what is asexuality? The lack of sexual attraction to others, or low or absent interest in or desire for sexual activity. is it prevalent in this modern age? Yes - A study by Aicken et al., suggests that the prevalence of asexuality in Britain is only 0.4% for the age range 16–44. is there a symbol for it? Yes - The flag consists of four horizontal stripes: black, grey, white, and purple from top to bottom. how is its awareness being celebrated? Asexual Awareness Week occurs on the last full week in October, and is created to celebrate and bring awareness to asexuality is there a discrimination or legal issue about it? Yes - Asexuals are evaluated more negatively in terms of prejudice, dehumanization and discrimination than ther sexual minorities. Asexuals also face prejudice from the LGBT community. how is the second term that you just mentioned conceptualized? Dehumanization describes a disposition towards others that debases the others' individuality as either an "individual" species or an "individual" object
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Dehumanization [SEP] In science, medicine, and technology
Relatively recent history has seen the relationship between dehumanization and science result in unethical scientific research. The Tuskegee syphilis experiment and Nazi human experimentation on Jewish people are two such examples. In the former, African Americans with syphilis were recruited to participate in a study about the course of the disease. Even when treatment and a cure were eventually developed, they were withheld from the African-American participants so that researchers could continue their study. Similarly, Nazi scientists conducted horrific experiments on Jewish people during the Holocaust. This was justified in the name of research and progress which is indicative of the far-reaching effects that the culture of dehumanization had upon this society.