After excision of the liver, the normal H-ion concentration was maintained for periods varying from one to several hours, after which the concentration (acidity) began to increase as the vitality of the animal began to decline, the concentration (acidity) increasing rapidly until death. After excision of the adrenals the blood remained normal for from four to six hours, when the H-ion concentration increased rather suddenly, the increase being synchronous with the incidence of the phenomena which immediately preceded death.英文原著 · 《The Origin and Nature of Emotions》
H-ion concentration tests were made after the application of the adequate stimuli by which the function of the kinetic organs had been determined, and we studied also the effect upon the acidity of the blood of strychnin convulsions after destruction of the medulla; of deep narcotization with morphin before anesthesia; of deep narcotization with morphin after the H-ion concentration had already been increased by fear, by anger, by exertion, by injury under anesthesia, or by anesthesia alone.英文原著 · 《The Origin and Nature of Emotions》
As has been stated already, we have found that the H-ion concentration of the blood--its acidity--is increased by alcohol, by ether, and by nitrous oxid. In addition our tests have shown that under ether the increase of the H-ion concentration--acidity--is more gradual than under nitrous oxid, an observation which accords well with the fact that nitrous oxid more quickly induces anesthesia than does ether.英文原著 · 《The Origin and Nature of Emotions》
Returning his cigar to his mouth, Goodwin observed her, and saw that her eyes followed it and rested upon it with icy and significant concentration. Apparently she had not heard a word he had said. He understood, tossed the cigar out the window, and, with an amused laugh, slid from the table to his feet.英文原著 · 《Cabbages and Kings》
The same experiments may be made with another freshwater crustacean, namely Daphnia, with this difference, however, that it is as a rule necessary to lower the temperature of the water also. If the water containing the Daphniae is cooled and at the same time carbon-dioxide added, the animals which were before indifferent to light now become most strikingly positively heliotropic. Marine copepods can be made positively heliotropic by the lowering of the temperature alone, or by a sudden increase in the concentration of the sea-water.英文原著 · 《Darwin and Modern Science》
I recapitulate the substance of this chapter in a few words: The existence of democracies is threatened by two dangers, viz., the complete subjection of the legislative body to the caprices of the electoral body, and the concentration of all the powers of the Government in the legislative authority. The growth of these evils has been encouraged by the policy of the legislators of the States, but it has been resisted by the legislators of the Union by every means which lay within their control.英文原著 · 《Democracy In America-1》
Hoshi thinks you being ringside may have affected my concentration.美剧 · 《Friends》
You also have a very low concentration of sperm in your semen.美剧 · 《Shameless》
That could be affecting your motility and concentration.美剧 · 《Shameless》
Your motility and concentration scores are through the roof.美剧 · 《Shameless》