1,746 research outputs found
Can a Battle be Lost in the Mind of the Commander
One of the current fashions among military writers is to disparage the can do spirit of certain military organizations. Such a spirit can undoubtedly cause problems if carried to the extreme of We can do anything with whatever resources we are given, no matter how inadequate they may be. Even that exaggerated point of view is less dangerous, however, than the increasingly popular one that seems to say, We would be overwhelmed by the Soviets in any war against them regardless of what percent of our national treasure we devote to defense. The danger of such a negative view lies in the fact that the outcome of a battle depends on the perceptions of the opposing commanders as well as the actual conditions on the battlefield
Body image/imagining bodies: Trauma, control, and healing in graphic memoirs about anorexia
Over the past decade, there has been a significant increase of graphic narratives focusing on the intersection of comics and medicine, a subgenre known as graphic medicine. These memoirs, known as graphic pathographies, are written from those who interact with disease in various capacities from patient, to doctor, to caregiver. This project closely examines three graphic pathographies written about the eating disorder anorexia nervosa. Prior writing, both fictional and personal memoir, on anorexia has often been considered as problematic for its ability to function as a how-to manual for anorexics. Anorexia is a complex disease that exists largely within the mind of the anorexic, yet its toll can be visibly seen on the body. Graphic pathographies, with their ability to simultaneously show through the visual format and tell through the verbal format, offer a more nuanced and holistic representation of one’s encounter with anorexia
The Ultimate Trust: National Self-Restraint as: a Factor in War
An anti-nuclear movement appears to be raking America by storm. In a short time, the movement progressed from resolutions at New England town meetings and demonstrations at the launchings of nuclear submarines to the point where it is influencing national policy makers, if not national policy
The Effects of Sulphur Dioxide on Selected Hepatics
Extensive studies have been reported on the air pollutant sulphur dioxide (SO2), and its effects on vascular and nonvascular plants. It has been shown to interrupt normal physiology, metabolism, reproduction, and alter the plant’s morphology.
Of the cryptogams, lichens have been extensively used as biological indicators of air pollution. More recently, bryophytes have been shown to be as sensitive to contaminates as lichens, and may exhibit responses to the pollutant similar to those of vascular and nonvascular plants. The threshold sensitivity of these cryptogams is about 0.5 ppm over a 12 hour period. However no study to date has investigated the utilization of hepatics as possible pollution indicators.
The intent of this research was to investigate the general responses of selected liverworts to sulphur dioxide. The liverworts used were: Blasia pusilla L., Lophocolea heterophylla (Schrad.) Dum., Scapania nemorosa (L.) Dum. and Jamesoniella autumnalis (D.C.) Steph. The thalli were fumigated under varying SO2 concentrations in an ecological chamber for 8 hours. All thalli exhibited a marked discoloration (chlorosis) which varied directly with the SO2 concentration. Chlorophyll analysis showed a 34-37% decrease in total chlorophyll content at 0.4 ppm SO2 concentration. Numerical data concerning Blasia reflects a conflict with chlorophyll extraction procedures of a plant and an algae. The SO2 caused degradation in chlorophylla whether plant or algal, which did account for the loss in total chlorophyll.
These liverworts exhibit a typical response to SO2 and have a threshold equal to, or slightly less than, other cryptogams
The Effects of Sulphur Dioxide on Selected Hepatics
Extensive studies have been reported on the air pollutant sulphur dioxide (SO2), and its effects on vascular and nonvascular plants. It has been shown to interrupt normal physiology, metabolism, reproduction, and alter the plant’s morphology.
Of the cryptogams, lichens have been extensively used as biological indicators of air pollution. More recently, bryophytes have been shown to be as sensitive to contaminates as lichens, and may exhibit responses to the pollutant similar to those of vascular and nonvascular plants. The threshold sensitivity of these cryptogams is about 0.5 ppm over a 12 hour period. However no study to date has investigated the utilization of hepatics as possible pollution indicators.
The intent of this research was to investigate the general responses of selected liverworts to sulphur dioxide. The liverworts used were: Blasia pusilla L., Lophocolea heterophylla (Schrad.) Dum., Scapania nemorosa (L.) Dum. and Jamesoniella autumnalis (D.C.) Steph. The thalli were fumigated under varying SO2 concentrations in an ecological chamber for 8 hours. All thalli exhibited a marked discoloration (chlorosis) which varied directly with the SO2 concentration. Chlorophyll analysis showed a 34-37% decrease in total chlorophyll content at 0.4 ppm SO2 concentration. Numerical data concerning Blasia reflects a conflict with chlorophyll extraction procedures of a plant and an algae. The SO2 caused degradation in chlorophylla whether plant or algal, which did account for the loss in total chlorophyll.
These liverworts exhibit a typical response to SO2 and have a threshold equal to, or slightly less than, other cryptogams
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