Question: What profession does Lita and Shim Eun-jin have in common?

<P0-S0> Second-harmonic imaging microscopy (SHIM) is based on a nonlinear optical effect known as second-harmonic generation (SHG). <P0-S1>  SHIM has been established as a viable microscope imaging contrast mechanism for visualization of cell and tissue structure and function. <P0-S2>  A second-harmonic microscope obtains contrasts from variations in a specimen’s ability to generate second-harmonic light from the incident light while a conventional optical microscope obtains its contrast by detecting variations in optical density, path length, or refractive index of the specimen. <P0-S3>  SHG requires intense laser light passing through a material with a noncentrosymmetric molecular structure. <P0-S4>  Second-harmonic light emerging from an SHG material is exactly half the wavelength (frequency doubled) of the light entering the material. <P0-S5>  While two-photon-excited fluorescence (TPEF) is also a two photon process, TPEF loses some energy during the relaxation of the excited state, while SHG is energy conserving. <P0-S6>  Typically, an inorganic crystal is used to produce SHG light such as lithium niobate (LiNbO), potassium titanyl phosphate (KTP = KTiOPO), and lithium triborate (LBO = LiBO). <P0-S7>  Though SHG requires a material to have specific molecular orientation in order for the incident light to be frequency doubled, some biological materials can be highly polarizable, and assemble into fairly ordered, large noncentrosymmetric structures. <P0-S8>  Biological materials such as collagen, microtubules, and muscle myosin can produce SHG signals. <P0-S9>  The SHG pattern is mainly determined by the phase matching condition. <P0-S10>  A common setup for an SHG imaging system will have a laser scanning microscope with a titanium sapphire mode-locked laser as the excitation source. <P0-S11>  The SHG signal is propagated in the forward direction. <P0-S12>  However, some experiments have shown that objects on the order of about a tenth of the wavelength of the SHG produced signal will produce nearly equal forward and backward signals. <SEP> <P1-S0> A stereotype is a generalized idea or image about a particular person or thing that is often oversimplified and offensive. <P1-S1>  Stereotypes are victim of prejudice when negative portrayals of a group are untrue of individual members. <P1-S2>  Nursing has been stereotyped throughout the history of the profession. <P1-S3>  A common misconception is that all nurses are female; this has led to the stereotype of male nurses as effeminate. <P1-S4>  These generalized ideas of the nursing profession have formed a skewed image of nurses in the media. <P1-S5>  The image of a nurse projected by the media is typically of a young white single female being over-sexualized as well as diminished intellectually; this idea is then portrayed in get-well cards, television shows and novels. <P1-S6>  The over-sexualized nurse is commonly referred to as a naughty nurse and is shown as a sex symbol or nymphomaniac. Along with these common stereotypes, studies have identified several other popular images used in media such as handmaiden, angel, torturer, homosexual male, alcoholic, buffoon and woman in white. <P1-S7>  Common stereotypes of nursing and portrayal of these misconceptions have fueled a discussion on the effects they have on the profession, harmful or good. <SEP> <P2-S0> Shim Eun-jin (Korean: 심은진 ; born February 6, 1981) is a South Korean singer and actress. <P2-S1>  She was a former member of 1990s girl group Baby V.O.X. <SEP> <P3-S0> Amy Dumas ( ; born April 14, 1975), better known as Lita, is an American retired professional wrestler, and singer most recently signed with WWE as an analyst. <P3-S1>  She performed as a wrestler with WWE from 2000 to 2006, and has since made part-time appearances with the company. <P3-S2>  She was inducted into the WWE Hall of Fame in 2014. <P3-S3>  She's the color commentator alongside Jim Ross for the Mae Young Classic.