(n.) An amphibious animal of the genus Rana and related genera, of many species. Frogs swim rapidly, and take long leaps on land. Many of the species utter loud notes in the springtime.
(n.) The triangular prominence of the hoof, in the middle of the sole of the foot of the horse, and other animals; the fourchette.
(n.) A supporting plate having raised ribs that form continuations of the rails, to guide the wheels where one track branches from another or crosses it.
(n.) An oblong cloak button, covered with netted thread, and fastening into a loop instead of a button hole.
(n.) The loop of the scabbard of a bayonet or sword.
(v. t.) To ornament or fasten (a coat, etc.) with trogs. See Frog, n., 4.
Example Sentences:
(1) A spindle cell sarcoma appeared 20 months after implantation of a pellet of 3-methylcholanthrene in the denervated foreleg of an adult frog, Rana pipiens.
(2) We have previously shown that serotonin is present in secretory granules of frog adrenochromaffin cells; concurrently, we have demonstrated that serotonin is a potent stimulator of corticosterone and aldosterone secretion by adrenocortical cells.
(3) The actions of the polyvalent cationic dye Ruthenium Red and the enzyme neuraminidase were studied at the frog neuromuscular junction.
(4) The purpose of our study was to determine the effect of HVPC on edema formation in frogs.
(5) The content of unsaturated fatty acids in walleye pollock PRM is 1.4 times greater than in frog PRM.
(6) The concentration dependences of response of frog tongue to D-fructose, D-glucose, and sucrose were almost the same, D-galactose, however, elicited a much larger response in comparison with the other sugars in the whole range of concentrations examined.
(7) Interpreted in term of compartmental analysis, these observations suggest that a) the frog skin epithelium contains 2 separated but communicating compartments having different degrees of accessibility from outside; b) only that compartment filling at a fast rate (0.5 min) is involved in the transepithelial Na transport; c) the other one, filling at a rate of 4 to 7 min, is resplenished only under conditions where the basal pump system has a reduced activity.
(8) The mechanisms underlying the three types of Cd effects on the frog skin were discussed in relation to the Na, K-ATPase activity.
(9) The addition of the Ca2+ ionophore A23187 (1 microM) to the inside solution of the frog skin resulted in an approx.
(10) At a concentration of 10 microM, tetraamine 4 did not affect histamine and 5-hydroxytryptamine receptors of guinea pig ileum or alpha-adrenoreceptors of guinea pig atria whereas it inhibited postsynaptic alpha-adrenoreceptors of rat vas deferens with a -log K value of 5.23 and nicotinic receptors of frog rectus abdominis with an IC50 value of 0.23 microM.
(11) The authors studied the effects of varying Na+ and Ca++ concentrations and of replacing H2O with D2O in Ringer's solution upon the actions of general and local anesthetics on isolated frog sciatic nerves.
(12) Antibiotics, X-537A and A23187, were added in micromolar concentrations to selected bathing solutions of skinned frog muscle fibers, and they were shown to affect the production of tension in the skinned fibers.
(13) The influence of stretch and radial compression on the width of mechanically skinned fibers from the semitendinosus muscle of the frog (R. pipiens) was examined in relaxing solutions with high-power light microscopy.
(14) The aim of this study was to determine the frequency of occurrence of the phenomenon in skin and muscle capillaries in both young and mature frogs and to examine the ultrastructure of endothelial cells found in these capillaries.
(15) At I = 0.2 M, pH 7, and 15 degrees C, the inhibition constants for rabbit myofibrils are 0.17, 3, and 5 mM, respectively; the values for frog myofibrils at 0 degrees C are very similar, being 0.22, 1.5, and 2.5 mM.
(16) A detailed comparison of the interaction of beta-adrenergic receptors with adenylate cyclase stimulation and modification of this interaction by guanine nucleotides has been made in two model systems, the frog and turkey erythrocyte.
(17) Of these 34 antibodies, 33 recognized the rat receptor and 1 was shown to precipitate the receptors from mice, chickens, and frogs with high affinity.
(18) Such a heterogeneity in DNA content in the diploid part of HPR cell population could apparently suggest some differences in the nuclear chromatin arrangement to be always higher in spring before the frog spawning, and it seems to be characteristic of this type of cells.
(19) Isolated frog retinas kept receptor side-upward in a moist chamber without perfusion showed the well-known slow PIII generated by the potassium decrease around receptors.
(20) We now report that two synthetic diacylglycerols (DAG) replicate the stimulatory and inhibitory effects of TPA on frog skin.
Switch
Definition:
(n.) A small, flexible twig or rod.
(n.) A movable part of a rail; or of opposite rails, for transferring cars from one track to another.
(n.) A separate mass or trees of hair, or of some substance (at jute) made to resemble hair, worn on the head by women.
(n.) A mechanical device for shifting an electric current to another circuit.
(v. t.) To strike with a switch or small flexible rod; to whip.
(v. t.) To swing or whisk; as, to switch a cane.
(v. t.) To trim, as, a hedge.
(v. t.) To turn from one railway track to another; to transfer by a switch; -- generally with off, from, etc.; as, to switch off a train; to switch a car from one track to another.
(v. t.) To shift to another circuit.
(v. i.) To walk with a jerk.
Example Sentences:
(1) We also demonstrated a significant difference in the Hb switching process between male and female newborns.
(2) Accumulating evidence indicates that for most tumors, the switch to the angiogenic phenotype depends upon the outcome of a balance between angiogenic stimulators and angiogenic inhibitors, both of which may be produced by tumor cells and perhaps by certain host cells.
(3) Nine years of clinical experience of the application of the Q-switched ruby laser to the removal of tattoos is presented.
(4) Males exploit this behavioural switch by increasing their sneaky mating attempts.
(5) It is hypothesized, furthermore, that the kinetics of emergence and loss of these various populations may reflect switching in the mode of immunity being expressed, particularly during the chronic phase of the infection, from that of a state of active immunity to one of immunologic memory.
(6) Police in Rockhampton have ordered residents to leave their homes as electricity is switched off in low-lying areas.
(7) The drug I started taking caused an irritating, chronic cough, which disappeared when I switched to an inexpensive diuretic.
(8) Our aim is to obtain evidence for trans-acting factors that regulate developmental hemoglobin (Hb) switching.
(9) Should such symptoms occur, the doctor has the choice of either switching to another first-step compound or reducing the dose of the first agent and combining it with one of other available drugs.
(10) I’ve warned Dave before to mind his ps and qs when the cameras are rolling, but the problem is you can never tell when the microphones are switched on.
(11) This modification improves the convergence properties of the network and is used to control a switch which activates the learning or template formation process when the input is "unknown".
(12) Usage of analyzing cardiac monitors with a signalling system switched on by the preset values of ST-segment depression prevented the evolution of myocardial ischemia and the development of exercise-induced anginal episodes.
(13) "It's very clear now that the administration agrees with us," said Wyden, hailing a switch from both the Bush and Obama administration stance that "collecting these records is vital to western civilisation".
(14) A programmable controller manages the olfactometer dilution stage selection, the odor stimulus switch and starts the peripheral devices required by the experiment.
(15) In hybrids before the switch, the gamma-genes are unmethylated.
(16) "The default switch should be set to release information unless there is an extremely good reason for withholding it.".
(17) A transistor radio activated by a mercury switch was used to reinforce head posture in two retarded children with severe cerebral palsy.
(18) The swi1+ gene is necessary for effective mating-type (MT) switching in Schizosaccharomyces pombe.
(19) Consequently mother cells can switch their mating type whereas bud cells cannot.
(20) Even if nobody switched party, the general election result would look very different to what’s predicted if millennials could be persuaded to vote at the same rate as pensioners, as polls factor in turnout differences and oversample the elderly accordingly.