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Many older adults try to avoid age discrimination by hiding visible signs of aging. But using cosmetic procedures to conceal one's age also incurs negative evaluations. This paradox prompted us to ask whether people can detect age concealment and, if so, whether they would either negatively evaluate concealers due to age-concealment stigmas or positively evaluate concealers because they look better. Across four studies with targets who underwent age-concealment procedures, we found that people could detect age concealment. Although people negatively evaluated concealers when thinking about them abstractly, they favored concealers over nonconcealers if they saw photos of them. Moreover, seeing photos of concealers improved subsequent evaluations of new concealers. The visual benefits of age-stigma concealment may therefore attenuate its stigma. [ABSTRACT FROM AUTHOR]

A new protocol for the spectrophotometric determination of chloramben using online diazotization has been investigated. The diazotization reaction and coupling reaction were carried out online in flow assembly by injecting chloramben in a nitrite stream followed by coupling with β-naphthol. The resulting azo dye was measured at 475 nm. The calibration plot is linear in the concentration range investigated, with a molar absorptivity of 2.64 × 104 L mol-1 cm-1 and sample throughput of 90 h-1. The proposed method is simple, rapid, and sensitive. The LOD and LOQ were calculated and were found to be 0.01 and 0.04 µg mL-1, respectively, with an RSD value of 8.3. [ABSTRACT FROM AUTHOR]