Results 211 to 220 of about 576,415 (259)

LIMIT CYCLES IN COUPLED BIOLOGICAL SYSTEMS

IFAC Proceedings Volumes, 1982
Abstract The paper investigates the effect of coupling on the synchronized oscillations of biological systems. The individual oscillators of the system are modelled as relay oscillators with the advantage that exact determination of the synchronized oscillations is possible using an extension of Tsypkin's method.
R. Balasubramanian, D.P. Atherton
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Reticulocytes: Biological variations and reference limits

European Journal of Haematology, 1994
Abstract: The reticulocyte count is a good index of erythropoietic activity. Automated methods, mainly flow cytometry, have made the counting easier, more accurate and reproducible. The data presented describe the counting of reticulocytes in 1219 apparently healthy subjects of both sexes who came for a periodic health examination.
P, Tarallo, J C, Humbert, P, Mahassen, B, Fournier, J, Henny   +4 more
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The Limits of Biological Influence

Psychological Inquiry, 1995
(1995). The Limits of Biological Influence. Psychological Inquiry: Vol. 6, No. 2, pp. 145-156.
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Biologic Basis for Limitation of Infarct Size

1986
The purpose of this chapter is to review several aspects of the biology of acute myocardial ischemic injury, in order to provide a framework within which possible therapies to limit infarct size may be considered.
K A, Reimer, R B, Jennings
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Biological suicide research: Outcome and limitations

Biological Psychiatry, 1986
Empirical study of suicide began early in this century from the sociological (Durkheim 1951) and psychological (Freud 1956) perspective. A decade ago, a biological dimension was added, focusing on two major issues, i.e., are disturbances in brain functioning instrumental in the occurrence of suicidal behavior and/or do such disturbances increase the ...
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Limits and pitfalls of Athlete's Biological Passport

Clinical Chemistry and Laboratory Medicine, 2011
The Athlete's Biological Passport (ABP) is an evaluation of hematological parameters, hemoglobin (Hb), reticulocytes (Ret), and their combination in the OFF-score. Recently, the Court of Arbitration for Sport accepted it as a suitable indirect method for detecting blood doping.
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Biological Weapons: Limiting the Threat

International Journal, 1999
foreword by William S. Cohen, U.S. Secretary of Defense Biological weapons pose a horrifying and growing threat to the United States and to the world in general. Revelations about Iraq's weapons research and the plans of the Aum Shinrikyo cult in Japan serve as frightening reminders of the potential for military or terrorist use of biological agents ...
Fen Osler Hampson, Joshua Lederberg
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Induction of Biological Activity by Limited Proteolysis

Annual Review of Biochemistry, 1967
important papers in the present review. The splitting of large protein molecules by proteolytic enzymes is nec­ essarily a complicated process: the peptide chains may be split at a large number of potenti al sites determined by the specificity of the proteolytic enzyme and by the amino acid sequence of the peptide chains.
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The Limits of the Target Theory of the Biological Action of Radiation

The British Journal of Radiology, 1952
The target theory is relevant to those biological actions of radiation which proceed from the effects of individual ionizing particles, or even from the formation of single ion clusters. The work of the late Dr. D. E. Lea in particular has given us a clearer understanding of the manner in which this theory may be fruitfully applied, and placed us in a ...
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Rate-Limiting Steps in Biological Photoproductivity

1977
An average crop of soybeans has a seed yield of about 1800 kg·ha−1·yr−1 and that of corn about 6000 kg·ha−1 yr−1. Expressed on another basis an average crop of soybeans, wheat, or corn converts only 0.2 to 0.4% of the incident solar radiation to dry matter with maximum short-term efficiencies of 1.4 to 2.9%.
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