Results 251 to 260 of about 2,662,524 (294)

String unification and threshold effects

Physical Review D, 1988
String unification is affected by string loop corrections if the corresponding string theory is strongly coupled. We study some properties of string loop thresholds and the implications for the phenomenological renormalization-group analysis.
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Interference Effects in Above-Threshold Ionization

Physica Scripta, 2003
We discuss four recent photoionization experiments with atoms and molecules in intense laser fields. So far, photoionization under these conditions was considered to be amenable to classical arguments. In contrast to this, the effects described here are due to quantum interference and, accordingly, have to be described with a quantum mechanical theory.
Paulus, G., Grasbon, F., Walther, H.
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Effects of Hemodialysis on Hearing Threshold

ORL, 1976
71 chronic renal failure patients undergoing long-term hemodialysis were evaluated for the effects of a dialysis event on hearing function. Osmotically active serum constituents were examined for relationship to fluctuating hearing threshold levels. Reliabiliity of hearing levels was found to be better in those patients tested without an intervening ...
D W, Johnson, R L, Wathen, R H, Mathog
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Cyberwar Thresholds and Effects

IEEE Security & Privacy Magazine, 2011
Network technology use and cyberspace exploitation for intelligence and attack have become a normal part of military activity. Questions persist as to the appropriate framework for considering this new mode of conflict, but to a degree, these questions result from weak data, imprecise terminology, and a certain reluctance to abandon the notion that ...
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Effect of Altitude on Taste Thresholds

Perceptual and Motor Skills, 1972
This study was designed to evaluate what effect altitude has on a person's ability to detect the four basic tastes (salt, sour, bitter, and sweet). Increasing molar concentrations of compounds representative of the four tastes were presented to a 6-member panel and their threshold value for each taste determined.
J A, Maga, K, Lorenz
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Effect of Arachnoiditis on Pain Threshold

Investigative Radiology, 1987
A model for studying the relationship between chronic arachnoiditis and pain sensitivity was developed. Thirty male ICR mice were randomly divided into three groups and the tail-flick test was done using an EMDIE-TF6 apparatus (Emdie Instrument Co., Montpelier, VA).
G A, Beyer, B T, Lipman, V M, Haughton, K C, Ho   +3 more
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Effects of illumination on auditory threshold

Physiology & Behavior, 1978
Abstract Auditory thresholds of four squirrel monkeys were examined with a 4 kHz tone in light and dark ambient sensory conditions. The results revealed that auditory sensitivity is higher in the light than in the dark.
E R, Delay, E S, Smith, W, Isaac
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Effects of Psychotropic Drugs on Seizure Threshold

Drug Safety, 2002
Psychotropic drugs, especially antidepressants and antipsychotics, may give rise to some concern in clinical practice because of their known ability to reduce seizure threshold and to provoke epileptic seizures. Although the phenomenon has been described with almost all the available compounds, neither its real magnitude nor the seizurogenic potential ...
PISANI F, OTERI G, COSTA, CINZIA, DI RAIMONDO G, DI PERRI R.   +4 more
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Resonances and Threshold Effects

1980
Much of the energy-dependent structure observed in low-energy electron scattering arises from resonances and threshold effects. Resonances are due to nearly bound states of the (N + 1)-electron system of target atom and external electron. In a time-dependent formalism, such a state decays with a finite lifetime if it interacts with states in an ...
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Atomic photoelectric effect near threshold edges

Physical Review A, 1985
Total photon attenuation coefficients near absorption edges are determined in certain suitable elements and compounds. Photoelectric cross sections for elements are deduced from these by subtracting the coherent and incoherent scattering cross sections as well as other elemental cross sections in the cases of compounds.
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