positive and negative
81Bugchasing and giftgiving — Articleissues citations missing = July 2008 rewrite = July 2008 wikify = July 2008Bugchasing (or bug chasing) is a slang term for a subculture of gay men who desire and actively pursue HIV infection. Bugchasers chase the bug by seeking sexual… …
82Positive Discipline — (or PD) is a discipline system used by schools that focuses on the positive points of behaviour. Some practitioners believe that educators should act with a philosophy that there are no bad children, just good and bad behaviors. You can teach and …
83Gram-negative bacteria — Microscopic image of Gram negative Pseudomonas aeruginosa bacteria (pink red rods). Gram negative bacteria are bacteria that do not retain crystal violet dye in the Gram staining protocol.[1] In a Gram …
84Emotions and culture — Emotions are universal phenomena; however, they are affected by culture. While some emotions are universal and are experienced in similar ways as a reaction to similar events across all cultures, other emotions show considerable cultural… …
85Contingent negative variation — The contingent negative variation (CNV) was one of the first event related potential (ERP) components to be described. The CNV component was first described by Dr. W. Grey Walter and colleagues in an article published in Nature in 1964.[1] The… …
86Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
87separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
88Negative — Neg a*tive (n[e^]g [.a]*t[i^]v), a. [F. n[ e]gatif, L. negativus, fr. negare to deny. See {Negation}.] 1. Denying; implying, containing, or asserting denial, negation or refusal; returning the answer no to an inquiry or request; refusing assent;… …
89Negative crystal — Negative Neg a*tive (n[e^]g [.a]*t[i^]v), a. [F. n[ e]gatif, L. negativus, fr. negare to deny. See {Negation}.] 1. Denying; implying, containing, or asserting denial, negation or refusal; returning the answer no to an inquiry or request; refusing …
90negative electricity — Negative Neg a*tive (n[e^]g [.a]*t[i^]v), a. [F. n[ e]gatif, L. negativus, fr. negare to deny. See {Negation}.] 1. Denying; implying, containing, or asserting denial, negation or refusal; returning the answer no to an inquiry or request; refusing …
