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We have recently developed a wide-field photon-counting detector having high-temporal and high-spatial resolutions and capable of high-throughput (the H33D detector). Its design is based on a 25 mm diameter multi-alkali photocathode producing one photo electron per detected photon, which are then multiplied up to 10 7 times by a 3-microchannel plate stack.(More)
1353 T ype 2 diabetes and its complications are a major cause of morbidity and mortality in adults. In 1992, patients with diabetes constituted 4.5% of the U.S. population but accounted for 14.6% of total U.S. health care expenditures (1). Approximately 1 in 7 health care dollars is currently spent on caring for diabetic individuals, and 95% of these(More)
Normal development depends on specific genetic and environmental inputs. When environments change, entire populations of organisms may simultaneously express maladaptive phenotypes. Selection in the new environment may gradually restore the ancestral phenotype by favouring alleles that counteract the environmental perturbation. This evolutionary process is(More)
We study theoretically transitions of a double quantum-dot qubit caused by nonequilibrium charge fluctuations in a nearby quantum point contact (QPC) used as a detector. We show that these transitions are related to the fundamental Heisenberg backaction associated with the measurement, and use the uncertainty principle to derive a lower bound on the(More)
Protocol and service standards governing the session layer of the seven-layer reference model for OSI are expected to be finalized in 1983. These standards are being developed jointly by the International Organization for Standardization (ISO) and the International Telegraph and Telephone Consultative Committee (CCITT) groups, and will have wide(More)
The findings and opinions expressed here do not necessarily reflect the positions or policies of the National Abstract Understanding the meaning of rational numbers and how to perform mathematical operations with those numbers seems to be a perennial problem in the United States for both adults and children. Based on previous work, we hypothesized that(More)