(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.
Panda
Definition:
(n.) A small Asiatic mammal (Ailurus fulgens) having fine soft fur. It is related to the bears, and inhabits the mountains of Northern India.
Example Sentences:
(1) In short, there is a cultural imperative to love the panda that even the pandapathetic find hard to ignore.
(2) Pandas have long been an important symbol of Chinese diplomatic overtures to both allies and former foes.
(3) Estimates of panda numbers in the wild vary enormously due to the difficulty of collecting data about the notoriously shy animal, which lives in dense, high-altitude vegetation: the last survey required more than 35,000 volunteers.
(4) Conservation efforts should now aim to protect areas that have a better chance of supplying pandas with food, despite climate change, said the scientists.
(5) And if captive-breeding of pandas is the best solution, those skills are found in China.
(6) Iain Valentine, the zoo's director of giant pandas, said: "The annual panda breeding season is imminent and the next 24 hours are critical.
(7) Though Da Mao’s showdown with the snowman may have ended in frustration, the panda will probably have the last laugh.
(8) Tian Tian, the female, whose name means sweetie, and Yang Guang, meaning sunlight, travelled from China on board a Boeing 777F flight dubbed the FedEx Panda Express, with a vet and two animal handlers.
(9) Natural "bridges" could also be created to help the pandas escape from a bamboo famine.
(10) With the species's future in the balance, Chengdu's visitors help to fund a new reserve where it is hoped pandas will ultimately be reintroduced into the wild.
(11) "The results of cutting edge scientific analysis have shown that, across the entire pregnancy, Tian Tian had the profile of a pregnant panda likely to carry to full term.
(12) Meanwhile in Edinburgh, for the second consecutive year , zoo officials have admitted that their star attraction, the giant panda Tian Tian, is not pregnant , and probably miscarried after she was artificially inseminated in the spring.
(13) "The endangered status of the giant panda has not changed."
(14) Since its arrival at the Paris's zoological Park, the yeasts of the flora digestive tract of a young female of Giant Panda, Ailuropoda melanoleuca, was daily, then weekly studied.
(15) Up against the continuing might of animated sequel Kung Fu Panda 3 , as well as fellow debutants including romantic drama The Choice and horror-comedy Pride and Prejudice and Zombies , the 50s-set tale of a major film star gone missing scored just $11.4m (£7.9m) to open in second place.
(16) As the pandas settled into their new, £250,000 home at the zoo, more intelligence about their lifestyles emerged.
(17) Whatever the reason, the window of opportunity for Edinburgh's pandas closed yesterday afternoon.
(18) In 1999, a few years after the British handed Hong Kong back to the Chinese, the PRC gifted the region a couple of pandas and followed them up with another pair to mark the 10th anniversary of Hong Kong's return to Chinese sovereignty.
(19) As it was announced yesterday that Edinburgh zoo's giant panda, Tian Tian, "may be" pregnant , the usual lip service was once again paid to an animal that resists viability like no other.
(20) But the survey also showed that 223 of the endangered wild giant pandas, or 12% of the population, are at high risk due to pressure from factors such as habitat loss.