Optical scanning technology for purposes other than ballot counting /

Mode of access: Internet.

Operator and organizational maintenance manual including repair parts and special tool lists : binocular, electronic AN/PAS-5.

"May 1969."

Operator and organizational maintenance manual : binocular M18.

"April 1964."

Counting the disabled : using survey self-reports to estimate medical eligibility for Social Security's disability programs /

"January 2001."

Physiologic optics : dioptrics of the eye, functions of the retina ocular movements and binocular vision /

Includes bibliographies and indexes.

Allison's American pictorial handy lexicon of the English language : on the basis of Websterś counting-house dictionary, edition of 1829.

Mode of access: Internet.

The 1980 census : the counting of America.

Cover title.

Counting for representation : the Census and the Constitution.

Mode of access: Internet.

Election '96, counting the American electorate.

Mode of access: Internet.

Slow binocular rivalry in bipolar disorder

Background. The rate of binocular rivalry has been reported to be slower in subjects with bipolar disorder than in controls when tested with drifting, vertical and horizontal gratings of high spatial frequency. Method. Here we assess the rate of binocular rivalry with stationary, vertical and horizontal gratings of low spatial frequency in 30 subjects with bipolar disorder, 30 age- and sex-matched controls, 18 subjects with schizophrenia and 18 subjects with major depression. Along with rivalry rate, the predominance of each of the rivaling images was assessed, as was the distribution of normalized rivalry intervals. Results. The bipolar group demonstrated significantly slower rivalry than the control, schizophrenia and major depression groups. The schizophrenia and major depression groups did not differ significantly from the control group. Predominance values did not differ according to diagnosis and the distribution of normalized rivalry intervals was well described by a gamma function in all groups. Conclusions. The results provide further evidence that binocular rivalry is slow in bipolar disorder and demonstrate that rivalry predominance and the distribution of normalized rivalry intervals are not abnormal in bipolar disorder. It is also shown by comparison with previous work, that high strength stimuli more effectively distinguish bipolar from control subjects than low strength stimuli. The data on schizophrenia and major depression suggest the need for large-scale specificity trials. Further study is also required to assess genetic and pathophysiological factors as well as the potential effects of state, medication, and clinical and biological subtypes.

Atom counting in ultracold gases using photoionization and ion detection

We analyze photoionization and ion detection as a means of accurately counting ultracold atoms. We show that it is possible to count clouds containing many thousands of atoms with accuracies better than N-1/2 with current technology. This allows the direct probing of sub-Poissonian number statistics of atomic samples. The scheme can also be used for efficient single-atom detection with high spatiotemporal resolution. All aspects of a realistic detection scheme are considered, and we discuss experimental situations in which such a scheme could be implemented.