(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.
Prog
Definition:
(v. i.) To wander about and beg; to seek food or other supplies by low arts; to seek for advantage by mean shift or tricks.
(v. i.) To steal; to rob; to filch.
(v. i.) To prick; to goad; to progue.
(n.) Victuals got by begging, or vagrancy; victuals of any kind; food; supplies.
(n.) A vagrant beggar; a tramp.
(n.) A goal; progue.
Example Sentences:
(1) The interaction with these lipids, the rotational conformations of the 17-acetyl group, and invertible conformations of the cyclohexenone of PROG were discussed on the basis of the elliptical strength of the Cotton effect and energy estimation of the preferred conformers.
(2) Simultaneous determination of unconjugated 16 alpha-hydroxypregnenolone (16 alphaOH-Preg), 16 alpha-hydroxyprogesterone (16 alphaOH-Prog) and 16 alpha-hydroxydehydroepiandrosterone (16 alphaOH-DHEA) in fetal and neonatal plasma was performed utilizing a newly developed radioimmunoassay.
(3) Before or at 1 month after each treatment, tumor response was evaluated according to the following categories: (1) complete response (CR) (no visible abnormality, and negative biopsy specimen and cytology); (2) partial response (PR) (degree of obstruction or size of tumor reduced more than 50%); (3) some response (SR) (degree of obstruction or size of tumor reduced 20% to 50%); and (4) progression (PROG) (degree of obstruction or size of tumor reduced by less than 20%).
(4) PROG (P less than 0.025) was lower and E2 (P less than 0.025) and E3 (P less than 0.05) were higher in PCO pregnancies than in HA pregnancies.
(5) Large-scale clinical trials have established that lowering blood pressure in patients with mild to moderate diastolic hypertension results in a decreased incidence of stroke and, to a lesser extent, a reduction in incidence of coronary heart disease [MacMahon SW, Cutler JA, Furberg CD, et al: Prog Cardiovasc Dis 1986; 29 (suppl 1): 99-118].
(6) Morphological evidence suggests that approximately two thirds of the bipolar cells and most amacrine cells are destroyed by the kainic acid lesion (Ingham and Morgan, Neuroscience, 9 (1983) 165-181), and pharmacological logic (Morgan, Prog.
(7) Earlier this year we wrote about Gnod , Salford's finest purveyors of ambient sludge, prog-metal and murky motorik psych-drone space-rock.
(8) The model was generated assuming a finite time-course of cross-bridge attachment [Huxley, Prog.
(9) The Michaelis constants were not different for the pro-val and progly substrates in control and prolidase deficient fibroblasts.
(10) We evaluated the direct effect of 17 beta-estradiol (E2) and of progesterone (Prog) on secretion of PTH from bovine parathyroid tissue in vitro.
(11) Statistically highly significant circadian rhythms were found in plasma testosterone, 17-OH Prog and DHEA-S, concentrations in men and women of all three age groups with a phase advance of over 2 hours in DHEA-S with advancing age.
(12) Plasma progesterone (PROG), testosterone (TEST), oestrone (E1) and 17 beta-oestradiole (E2) concentrations were determined in collared doves living under natural conditions in young as well as sexually inactive animals further in different phases of the reproduction cycle; measurements were made by radioimmunoassay following Sephadex LH 20 chromatography.
(13) If one of these alterations had appeared with the toxic, the Prog action would have diminished it gradually until its disappearance.
(14) The interaction between the A-ring and the 17-acetyl groups of progesterone (PROG) and various concentrations of distearoyl-, dipalmitoyl-, dioleoyl- and diarachidoyl-L-alpha-phosphatidylcholines, and dipalmitoyl-L-alpha-phosphatidyl-DL glycerol in methanol and chloroform solutions and its preferred conformational assignments in the presence of those lipids were examined qualitatively by circular dichroism on the basis of PROG spectra in the wavelength regions of 260-400 nm.
(15) The adrenal venous PROG concentration and secretory rate of female hamsters infused with 10% dextran while collecting adrenal venous blood did not differ significantly from those of the non-infused animals, suggesting that this amount of blood loss (1 ml) does not influence PROG secretion.
(16) There were no consistent changes of plasma 17 alpha,20B PROG during this period.
(17) Conclusive evidence for the relation between cell type and hormone content was found only in one type: in type 6, stromal glandular cells show an extremely intensive PROG synthesizing activity.
(18) The ovarian, endometrial and pituitary effects of 300 micrograms norethisterone (NET) and 30 micrograms levonorgestrel (L-NOG) administered orally on cycle days 7-10 were investigated in two groups of 10 women each, by daily analysis of plasma estradiol (E2), progesterone (PROG), immunoreactive luteinizing hormone (LH) and follicle stimulating hormone (FSH) in a pretreatment control cycle and during NET or L-NOG administration.
(19) The present work tended to evaluate the effect of streptozotocin diabetes on estradiol (E2) stimulation of Prog.
(20) The amounts of 17 alpha-OH-Prog and F increased in all groups, especially in IL cells.