Results 111 to 120 of about 1,811,393 (164)
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Nature, 1947
THE article by Dr. C. F. C. Beeson in Nature of October 26, p. 572, is a welcome attempt to sort out the many conflicting references to a subject of much importance and of wide interest. Numerous factors go to the growth of a plant, and I felt many years ago that it was necessary first to find out the chemical and physical effects of moonlight under ...
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THE article by Dr. C. F. C. Beeson in Nature of October 26, p. 572, is a welcome attempt to sort out the many conflicting references to a subject of much importance and of wide interest. Numerous factors go to the growth of a plant, and I felt many years ago that it was necessary first to find out the chemical and physical effects of moonlight under ...
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Effectiveness of chemical biliary duct embolization for chemical hepatectomy
Journal of Gastroenterology and Hepatology, 2006AbstractBackground and Aims: The high recurrence of hepatolithiasis and high operative trauma of hepatectomy necessitate new therapeutic approaches. Thus, this study was designed to (i) investigate the effectiveness of chemical biliary duct embolization (CBDE) for chemical hepatectomy; and (ii) to determine the mechanism of CBDE.Methods: The median ...
Fu-Yu, Li +7 more
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Chemical modification of radiation effects
Cancer, 1977A number of powerful chemical compounds that modify radiation effects have been discovered and tested both in the laboratory and clinically over the past 25 years. There are four major classes of compounds: aminothiol radio-protectors which act on well vascularized euoxic cells and concentrate in tissues such as skin, gut and marrow; nitromidazole ...
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Hearing: The Effects of Chemicals
Otolaryngology–Head and Neck Surgery, 1992Recent studies of human beings exposed to environmental chemicals, as well as experimental animal studies, have identified a number of chemical agents that are commercial products, chemical intermediaries, waste products, or contaminants that are potentially ototoxic.
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Two Peak Effect in GMR: A Chemical Effect?
MRS Proceedings, 1999AbstractWe show that the synthesis conditions have a dramatic influence on the resistivity behavior of calcium and sodium doped LaMnO3. Several samples prepared by lowtemperature techniques exhibit a double-peaked curve of resistance versus temperature.
Vertruyen, Bénédicte +6 more
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Solvent Effects on Chemical Reactivity
Bulletin des Sociétés Chimiques Belges, 1982Abstract
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Toxic Effects of Chemical Mixtures
Archives of Environmental Health: An International Journal, 2003Exposures to chemical mixtures have reportedly produced unexpected effects. Examination of new case studies, as well as those previously reported, shows that when the human body is exposed to mixtures of chemicals that include lipophilic and hydrophilic species, the lipophiles facilitate the absorption of the hydrophiles at enhanced levels and produce ...
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Combination Effects in Chemical Carcinogenesis
1980Only very few malignant tumors in human beings can be attributed to one single chemical substance. Therefore, combination effects are of particular practical relevance. Up to now, the experimental examination of this problem has been neglected to a great extent.
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1967
Electrostatic and magnetostatic phenomena have been familiar to men since antiquity, though until recent times they have been matters of complete mystery. Knowledge of electrical current is relatively new because naturally occurring currents are usually either too small to detect or too rapid (as in lightning flashes) to study.
J. S. Marshall +2 more
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Electrostatic and magnetostatic phenomena have been familiar to men since antiquity, though until recent times they have been matters of complete mystery. Knowledge of electrical current is relatively new because naturally occurring currents are usually either too small to detect or too rapid (as in lightning flashes) to study.
J. S. Marshall +2 more
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1995
At high supersonic flight speed, gas heating within the bow wave gives rise to such physical and chemical processes as excitation of the internal energy of the molecules, dissociation, chemical reactions, ionization, and radiation. Intensive aerodynamic heating of the vehicle often results in destruction of the heat protection material.
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At high supersonic flight speed, gas heating within the bow wave gives rise to such physical and chemical processes as excitation of the internal energy of the molecules, dissociation, chemical reactions, ionization, and radiation. Intensive aerodynamic heating of the vehicle often results in destruction of the heat protection material.
openaire +1 more source