(n.) Any one of numerous species of pulmonate arachnids of the order Scorpiones, having a suctorial mouth, large claw-bearing palpi, and a caudal sting.
(n.) The pine or gray lizard (Sceloporus undulatus).
(n.) The scorpene.
(n.) A painful scourge.
(n.) A sign and constellation. See Scorpio.
(n.) An ancient military engine for hurling stones and other missiles.
Example Sentences:
(1) Veratridine and the sea anemone toxin on one hand as well as veratridine and the scorpion toxin on the other hand are synergistic in their action to stabilize an open and highly permeable form of the sodium channel.
(2) We have previously shown that the [3H]saxitoxin binding site of the sodium channel is expressed independently of the [125I]scorpion toxin binding site in chick muscle cultures and in rat brain.
(3) The labelled peptide is bound to mouse diaphragm from where it can be displaced by ATX II and, even better, by scorpion neurotoxin but not by other basic peptides, e.g., histone or aprotinin.
(4) A graded depolarization accompanied by nerve impulses can be recorded from the scorpion lateral and median eyes in response to light.
(5) We found that HIV Nef shares sequence and structural features with scorpion peptides known to interact with K+ channels.
(6) Although the insect-directed toxin has one atypical disulfide bridge, the general structural features of the scorpion toxin family, including the presence of a "conserved-hydrophobic" surface, seem to be well-conserved.
(7) To study the site of interaction, the effects of lidocaine, carbamazepine and another anticonvulsant drug, phenytoin on scorpion venom-enhanced specific binding of [3H]batrachotoxinin A 20-alpha-benzoate to the sodium channel gating complex were examined in vitro in a rat brain hippocampus preparation.
(8) The complete amino acid sequence (64 residues) of the AaH IV toxin from the scorpion Androctonus australis Hector was determined by automated Edman degradation and was compared with the sequences of other Androctonus toxins.
(9) 62 patients who had been stung by a red scorpion were admitted from January to December 1990: 18 with hypertension, 15 with supraventricular tachycardia, 11 with pulmonary oedema, and 18 with local pain at the site of sting but no systemic involvement.
(10) We claim that periodic waves mark the activity of a suboesophageal pace-maker and we propose a system of two pace-makers to explain the visual and locomotor circadian rhythms of scorpions.
(11) Three epitopes have been localized by immunoelectron microscopy on subunit Aa6 of the 4 x 6-meric hemocyanin of the scorpion Androctonus australis.
(12) Charybdotoxin isolated from the Israeli scorpion venom (Leiurus quinquestriatus hebraeus), also displaced [125I]-DpI binding, with a Ki of approximately 3 x 10(-9) M, although the displacement curve was shallower than with native DpI.
(13) We conclude that myocardial toxicity is a common and serious complication of scorpion stings in children.
(14) The claim made by astrologers that people can be characterized according to their sign of the zodiac (sagitarius, taurus, cancer, scorpion) must be refuted.
(15) We note the absence both of microtubules in the sperm of Centruroides and also of the centriole adjunct, which is present in other scorpion spermatids.
(16) The complete amino acid sequence of toxin XI of the North African scorpion Buthus occitanus tunetanus has been elucidated by automatic sequencing of the reduced and alkylated toxin and of the peptides obtained after tryptic cleavage restricted to arginyl bonds.
(17) 22Na+ uptake through voltage-dependent Na+ channels is induced by veratridine and scorpion venom, and is inhibited 50% by 5 X 10(-7) M-tetrodotoxin and greater than 98% by 5 X 10(-6) M-tetrodotoxin.
(18) A seven-year-old girl, stung by a scorpion, was hospitalized in a confused state with signs of myocarditis and pulmonary edema.
(19) The observation that two classes of neuronal depolarizing agents (veratrine and scorpion venom) cause TTX-sensitive inhibition of basal ion transport establishes that NaCl absorption in flounder intestine is subject to regulation by enteric nerves located in the submucosa.
(20) The effects of the major neurotoxic fraction isolated from scorpion venom of Tityus serrulatus, TiTx gamma, on peripheral nerve membrane of Xenopus laevis were studied under current- and voltage-clamp conditions.
Seal
Definition:
(n.) Any aquatic carnivorous mammal of the families Phocidae and Otariidae.
(n.) An engraved or inscribed stamp, used for marking an impression in wax or other soft substance, to be attached to a document, or otherwise used by way of authentication or security.
(n.) Wax, wafer, or other tenacious substance, set to an instrument, and impressed or stamped with a seal; as, to give a deed under hand and seal.
(n.) That which seals or fastens; esp., the wax or wafer placed on a letter or other closed paper, etc., to fasten it.
(n.) That which confirms, ratifies, or makes stable; that which authenticates; that which secures; assurance.
(n.) An arrangement for preventing the entrance or return of gas or air into a pipe, by which the open end of the pipe dips beneath the surface of water or other liquid, or a deep bend or sag in the pipe is filled with the liquid; a draintrap.
(v. t.) To set or affix a seal to; hence, to authenticate; to confirm; to ratify; to establish; as, to seal a deed.
(v. t.) To mark with a stamp, as an evidence of standard exactness, legal size, or merchantable quality; as, to seal weights and measures; to seal silverware.
(v. t.) To fasten with a seal; to attach together with a wafer, wax, or other substance causing adhesion; as, to seal a letter.
(v. t.) Hence, to shut close; to keep close; to make fast; to keep secure or secret.
(v. t.) To fix, as a piece of iron in a wall, with cement, plaster, or the like.
(v. t.) To close by means of a seal; as, to seal a drainpipe with water. See 2d Seal, 5.
(v. t.) Among the Mormons, to confirm or set apart as a second or additional wife.
(v. i.) To affix one's seal, or a seal.
Example Sentences:
(1) To provide a seal with low pressure-high volume cuffed tubes, cuff sizes of 20.5 mm and 27.5 mm are recommended for female and male patients, respectively.
(2) Cermet cement sealings showed defects more frequently.
(3) The channels usually ceased conducting within a few minutes after seal formation with the patch pipette and could not be re-activated with depolarizing voltage steps.
(4) For all the understandable insistence that parliament and London would continue as normal after Wednesday’s terrorist attack, almost 24 hours later a large section of streets around the area remained sealed off by police.
(5) Tone pulses and noise stimuli were mixed acoustically and presented using calibrated, sealed stimulating systems.
(6) In general, after recording a baseline tympanogram, mechanically created positive and negative air pressures are created in a hermetically sealed ear canal causing increased pressure on the middle ear air cushion.
(7) Ecological evidence is considered to suggest that the rapid maturation of C. semerme in rats may also occur when the parasite becomes established in seals.
(8) Increased conversion of 25-OHD to 24,25-(OH)2D and a high capacity for vitamin D storage in their large blubber mass appeared to be factors in the resistance of seals to vitamin D toxicity.
(9) The mechanism of sealed-off perforation of the duct is discussed.
(10) Membranes were sandwiched between two gas-permeable, plastic foils, placed in a sealed cuvette, and gassed with H2 as reductant or O2 as oxidant.
(11) Treatment animals had the anastomoses and graft sealed with a suspension of N-butyl-2-cyanoacrylate and 1.2 g tobramycin powder (antibiotic glue, ANGL) after contamination.
(12) The results demonstrated that, when the coronal half of the root canal filling material was removed immediately after placement with pluggers, there was a loss of the apical seal and leakage in thirteen of twenty teeth.
(13) Ultrastructural study of the Leydig cells of nonbreeding crabeater, leopard and Ross seals showed that three types of cells could be distinguished.
(14) National bans on commercial trading in seal products are already in place in 30 countries including the US, the Netherlands and Italy.
(15) Under these conditions, with careful attention to sealing at ankles and waist, it was possible to estimate penetration as low as 0.3%.
(16) We used transvitreally delivered cyanoacrylate tissue adhesive to seal retinal breaks in 25 selected patients undergoing vitreous surgery for complicated retinal detachment.
(17) To date, numerous products have been evaluated, and many hundreds have received the council's seal of acceptance.
(18) She explained that, as a baby, she had been subjected to female genital mutilation (FGM): her clitoris cut off and her vagina sealed, with only a small hole remaining for urine and menstruation.
(19) After accidental dissection of the thoracic duct in infants, leakage of chyle could be sealed successfully in 6 cases.
(20) These microcapsules can be dried and retain activity when sealed in a jar at 4 degrees C.