Results 271 to 280 of about 2,793,666 (316)

The Knowledge Leveling Effect of Portal Sites

Communication Research, 2014
The new high-choice media environment has allowed entertainment-oriented people to avoid political news, resulting in a wider gap in political knowledge between entertainment- and news-oriented citizens. On the Internet, however, users tend to be concentrated into a handful of portal sites that offer a mixed information environment in which both news ...
Tetsuro Kobayashi, Kazunori Inamasu
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Midbrain as a Site for the Motion After-effect

Nature, 1969
Electrophysiological data for directionally sensitive units in optic tectum of mammals, indicating midbrain as site for rotating spiral motion ...
W, Richards, R A, Smith
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The site of action for the convulsant effect of pentylenetetrazol

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1981
Abstract 1. Lymnaea neutons demonstrated convulsive bursting in response to 40 mM pentylenetetrazol (PTZ) applied extracellularly but showed no response to injections calculated to bring intracellular concentrations of PTZ to 100 mM. 2. PTZ was found to permeate cell membranes. 3.
M F, Pacheco, J C, Fowler, L D, Partridge   +2 more
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Effects of Granuloma Formation at Site of Vasovasostomy

Journal of Urology, 1988
Spermatic granulomas forming after vasectomy reversal have been thought to mechanically compromise the anastomosis. We have studied the physiologic effects of vasectomy and vasovasostomy in rats. Following delayed microsurgical vasovasostomy, fluid flow through the anastomosis and cauda epididymidal hydrostatic pressure are not significantly different ...
P O, Carey, S S, Howards, C J, Flickinger, J C, Herr, T N, Gallien, D, Caloras, D R, Spell   +6 more
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A model for monitoring Web site effectiveness

Internet Research, 1997
Presents a model which organizations can use to monitor Web site effectiveness. Argues that anecdotal evidence can be colorful but is not useful in structuring and managing an effective site. Suggests that traditional disciplines of composition and communication ‐ explicit purpose, coherent structure, relevant conclusion ‐ should be applied to Web site
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Effect of site of pacing on dispersion of refractoriness

The American Journal of Cardiology, 1985
The variation in dispersion of ventricular refractoriness with different sites of pacing was measured in 11 patients not taking antiarrhythmic drugs. Dispersion of refractoriness between 3 right ventricular sites was determined at constant paced cycle lengths (S1S1).
T D, Friehling, P R, Kowey, J A, Shechter, T R, Engel   +3 more
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Measuring the effect‐site

Anaesthesia, 2020
M. G. Irwin, C. K. E. Chung, G. T. C. Wong   +2 more
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The effect of subsampling sites within patients

Journal of Periodontal Research, 1985
In recent periodontal research, multiple sites within patients have been utilized as the primary observations or sampling units. In the present study a simple approach for the single sample case was used to demonstrate the effect of site‐specific analyses when the patient is not treated as the sampling unit. This approach was shown to underestimate the
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Site response effects for structures located on sand sites

Canadian Geotechnical Journal, 1990
Results are presented for 4 sand sites forming part of a site response study of 11 soil sites. The results are in the form of spectral accelerations and ratios, base shear coefficients, and foundation factors. They indicate that significant amplifications can be expected at sand sites, especially for low-intensity excitation. Comparisons are made with
P. Henderson, A. C. Heidebrecht, N. Naumoski, J. W. Pappin   +3 more
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Targeting the Effect Site

2000
The availability of commercial devices (Diprifusor™) that provide computerised control of the plasma concentrations of propofol has focused attention on Target Controlled Infusion (TCI) techniques in anaesthesia. TCI devices can rapidly achieve and maintain any desired target concentration of a drug, and allow the target concentration to be changed ...
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