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Most of the matter in our solar system, and, probably, within the whole universe, exists in the form of ionized particles. On the other hand, in our natural environ ment, gaseous matter generally consists of neutral atoms and molecules. Only under certain conditions, such as within the path oflightning or in several technical devices (e. g. gas discharges, rocket engines, etc. ) will some of the atoms and molecules be ionized. It is also believed that the chemistry of the earth's troposphere predomi nantly proceeds via reactions between neutral particles. (The complex system of atmospheric chemistry will be treated in one of the forthcoming volumes to this series. ) Why, then, are ions considered so important that hundreds oflaboratories all over the world (including some of the most prestigious) are involved in research pro grams on ions, covering many different facets, from biochemistry to physics? One may obtain as many different answers as there are research groups busy in this field. There is, however, one simple, common feature which makes it attractive to work with ions: since they carry one or more net elementary charges, they can easily be gui ded, focused or separated by appropriate electric and magnetic fields, and, last but not least, they can easily be detected. Apart from these advantages, which are welcome and appreciated by the researcher, the study of molecular ions can provide insight into very fundamental aspects of the general behavior of molecules.
Known as the Official handbook of the Federal Government. This annual resource provides comprehensive information on the agencies of the legislative, judicial, and executive branches, as well as quasi-official agencies, international organizations in which the United States participates, boards, commissions, and committees. Each agency's description consists of a list of principal officials; a summary statement of the agency's purpose and role in the Federal Government; a brief history of the agency, including its legislative or executive authority; and a description of consumer activities, contracts and grants, employment, and publications.
Physical symptoms are fascinating phenomena to examine. We all experience them, use them as signals to guide our behavior, and usually assume that they accurately represent underlying physiological activity. At the same time, we implicitly know that bodily sensations are often vague, ambiguous, and subject to a variety of interpretations. It is not surprising, then, that there is often a disparity between what we think is going on in our bodies and what is objectively occurring. In short, phenomena such as physical symptoms are the stuff of psychology. My own research into physical symptoms started by accident several years ago. In a hastily devised experiment dealing with the effects of noise on behavior, I had to write a post-experimental questionnaire that would be long enough to allow the experimenter time to calibrate some equipment for a later portion of the study. I included some physical symptoms on the questionnaire as fillers. The experiment was a total failure, with the exception of the symptom reports. People's perceptions of symptoms were easily influenced by our manipulations, even though their actual physiological state had not changed. And so began the present inquiry. Despite the pervasiveness, importance, and sheer amount of time and money devoted to discussing and curing common physical symptoms and sensations, very little empirical work has been devoted to examining the psychological and perceptual factors related to sensory experience. Occa sional papers have tested a specific theory, such as cognitive dissonance, wherein physical symptoms served as an interesting dependent measure.
Previous edition published under the title Redeeming the dream: the case for marriage equality.
Friendly Fallout 1953 is a hybrid work of literature that combines the actual history of aboveground atomic testing in the Nevada desert in 1953 with fictional vignettes that explore the impact of the tests on the people who participated in them and on civilian "downwinders." The book brings to life a turbulent era when Cold War fears, patriotic enthusiasm, scientific progress, and unacknowledged political agendas often collided with the welfare of ordinary citizens and the environment.