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A simple method for the detection of nanogram amounts of dyes by means of their fluorescence in the visible region of the spectrum is described. To stimulate the fluorescence, an argon ion laser with principal lines of 514.5 nm and 488.0 nm is used. The sensitivity of the technique allows the visualization of an amount of dye smaller than could be detected with either visible absorbance or ultraviolet stimulated fluorescence. 相似文献
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Davis MI Olson BD Jason LA Alvarez J Ferrari JR 《Journal of prevention & intervention in the community》2006,31(1-2):3-12
In this paper, we review the result of research conducted in the context of a 13-year collaborative partnership between DePaul University and a community-based, self-run, residential substance abuse recovery program called Oxford House. This collaborative effort highlights several examples of the research and action activities fostering a positive alliance that benefited both the research team and the Oxford House community. It also proposed practical guidelines for developing effective action research collaboratives that may be helpful to others who desire to cultivate and maintain similar mutually beneficial partnerships; including such processes as the development of trust, respecting the personal experiences of the community members and group, commitment to serving the community, validating findings with organization members, and accountability. 相似文献
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The relationships between childhood sexual abuse, social anxiety, and symptoms of posttraumatic stress disorder were examined
in a sample of 313 undergraduate women. Thirty-one percent of the women reported some form of sexual abuse in childhood. Women
with a history of sexual abuse reported more symptoms of anxiety, distress in social situations, and posttraumatic stress
disorder than other women. Women who experienced attempted or actual intercourse reported more avoidance than women with no
history of abuse and women with exposure only, and more PTSD symptoms than all other groups of women. Women who experienced
fondling reported more PTSD symptoms than women with no history of abuse. Pressure, age of onset of abuse, abuse by a family
friend, and abuse by other perpetrators were all significant abuse characteristics in predicting adult social anxiety. Implications
of these results for research and interventions are discussed. 相似文献