Narcissistic personality disorder is a mental health condition. Symptoms include a preoccupation with your own needs and wants without recognizing how you impact others.

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Generosity definition, readiness or liberality in giving. See more.

In computer science and mathematics, computational complexity theory focuses on classifying computational problems according to their resource usage, and relating these classes to each other. A computational problem is a task solved by a computer. A computation problem is solvable by mechanical application of mathematical steps, such as an algorithm.. A problem is …

Cryptology is the mathematics, such as number theory, and the application of formulas and algorithm s, that underpin cryptography and cryptanalysis . Since the cryptanalysis concepts are highly specialized and complex, we concentrate here only on some of the key mathematical concepts behind cryptography.

The abortion debate is a longstanding, ongoing, controversy surrounding moral, legal, medical, and religious aspects of induced abortion. In English-speaking countries, the debate most visibly polarizes around adherents of the self-described "pro-choice" and "pro-life" movements.Pro-choice emphasizes a woman's right to bodily autonomy, while the pro-life position argues that a fetus …

In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line (or alternatively, a quantity that can be represented as an infinite decimal expansion).The adjective real in this context was introduced in the 17th century by René Descartes, who distinguished between real and imaginary roots of polynomials. The real …

Jan 31, 2018 · The intractable nature of racial inequality is a part of the tragedy that is American slavery. But the saga of slavery is not exclusively a story of despair; hard history is not hopeless history. Finding the promise and possibility within this history requires us to consider the lives of the enslaved on their own terms.

Difficult definition, not easily or readily done; requiring much labor, skill, or planning to be performed successfully; hard: a difficult job. See more.

Deaf definition, partially or wholly lacking or deprived of the sense of hearing; unable to hear. See more.