(n.) A sensation resembling that made by the creeping of ants on the skin.
Example Sentences:
(1) Simple hexane and formic acid-hexane extraction methods, involving pretreatment of the serum with formic acid, were compared by radiometric and by paper chromatographic and gas chromatographic analysis.
(2) Ten tissue sections from 10 examples of Bowen's disease were excised from paraffin blocks, rehydrated, and incubated in 90% formic acid at 45 degrees C for 18 h. The epidermis was gently removed with the aid of a dissecting microscope, and the remaining dermis with attached basal lamina was processed for scanning electron microscopy.
(3) The green pigments from the fungi of the genera Trichoderma and Penicillium were partially extracted with formic acid.
(4) Further purification was performed by gel chromatography using a Superose 12 column eluted in 70% formic acid.
(5) The six silage treatments were untreated corn silage (low nitrogen); untreated corn silage and untreated alfalfa silage (1:1); untreated corn silage and formaldehyde and formic acid-treated alfalfa silage (1:1); ammonia-treated corn silage (low nitrogen); treated corn silage and untreated alfalfa silage (1:1); or treated corn silage and treated alfalfa silage (1:1).
(6) Heating, growth of fungi, and days until spoilage were delayed by all acid additions during refermentation, with propionic more effectivethan formic.
(7) The eggs of Dicrocoelium dendriticum were induced to open by solutions of formic acid and caproic acid (Table 1).
(8) They were then decalcified for 14 days in 5% formic acid-sodium citrate, sectioned serially at 7 microns and stained with hematoxylin and eosin, Masson's stain, and silver impregnated stain.
(9) Liver microsomes isolated from rats fed the 3 diets metabolized MAM to formic acid and methanol in vitro, but liver microsomes from rats fed the continuous ethanol diet were 12 to 15 times more active than liver microsomes from rats fed the control diet.
(10) At elevated pH and temperature, chloral hydrate readily decomposed and chloroform and formic acid were detected as products.
(11) This embryotrophic factor was extracted from BSA dissolved in formic acid by membrane filtration (membrane cutoff of M(r) 10,000) and then freeze-drying of the filtrate.
(12) The enhanced sensitivity of some Salmonella typhimurium strains to the mutagenic action of a number of chemicals appears to be due to the defect in the uvrB gene product and not to an inability to produce H-2-S or to the absence of formic acid hydrogenlyase which also characterizes these strains.
(13) Studies using H2(18)O and 18O2 demonstrated that, in the cleavage of (4-hydroxybenzoyl)methanol to 4-hydroxybenzoic and formic acids by an enzyme from an Alicaligenes sp., oxygen is incorporated into both products from dioxygen and not from water.
(14) 60% Formic acid, necessary for solubilization of structural polypeptides of poliovirus and other proteins, modified at the cysteines, was used together with 2-propanol or acetonitrile as organic modifier for gradient elution in reversed-phase high-performance liquid chromatography.
(15) In sharp contrast, both intact M1 protein and the C-terminal 15-kilodalton formic acid fragment were able to inhibit viral transcription markedly.
(16) The concentrate from this step was applied to a gel filtration column of Sephacryl S-200 and eluted with 10% formic acid.
(17) In addition, evidence is presented that formic acid is crossing the brushborder membrane of rabbit renal cortex by non-ionic diffusion.
(18) After EDTA or formic acid decalcification, a range of DNA denaturation schedules was assessed and immunohistological detection of BrdU-containing nuclei was performed using the Sera Lab anti-BrdU antibody MAS 250b.
(19) Lactic acid was the major product; ethyl alcohol, acetic acid, formic acid, and carbon dioxide were formed in smaller amounts.
(20) The sample is transferred to a volumetric flask, a small volume of formic acid is added to dissolve and stabilize the ergotamine, and the solution is diluted to volume with methanol.
Tactile
Definition:
(a.) Of or pertaining to the organs, or the sense, of touch; perceiving, or perceptible, by the touch; capable of being touched; as, tactile corpuscles; tactile sensations.
Example Sentences:
(1) Tactile stimulation of a coin-sized area in a T-2 dermatome consistently triggered a lancinating pain in the ipsilateral C-8 dermatome in a 38-year-old woman.
(2) Study I findings did not provide support for synergistic mechanisms; nonorthogonal analysis of variance showed interaction effects (CRT x IT) restricted to tactile-perceptual speed.
(3) For tactile modalities, a lesion of the spinothalamic complex causes minimal or no defects and a lesion of the posterior columns causes only slight defects, whereas a lesion of both pathways gives rise to total loss of tactile and pressure sensibility in the part of the body served by both pathways.
(4) More importantly, motor and cardiovascular responses to startle may be separated through discrimination of afferent stimuli suggesting either differences in neural pathways for acoustic and tactile stimuli or a differential dependency of the various responses on stimulus characteristics.
(5) Animals were trained to perform an orientation match-to-sample task using either a visual or a tactile orientation sample.
(6) Simple screening tests for visual and tactile inattention were used to investigate the influence of perceptual deficits on predictions for the outcome of acute stroke.
(7) The position of the visual receptive field of these neurons did not change after saccadic eyes displacements, but remained in-register with the tactile receptive field.
(8) Complete transection of the thoracic spinal cord eliminated both thermally elicited responses and orienting responses to noxious and tactile mechanical stimulation of the hindlimbs.
(9) The similarity between type III cells and Merkel cells (cells of the tactile system) was surprising.
(10) The level of the DA metabolite 3,4-dihydroxyphenylacetic acid (DOPAC) increases only in pups receiving both odor and tactile stimulation and peaks at about 200% of baseline.
(11) IR is considered to be caused by a group of neurons in the brain stem which inhibit spinal motoneurons, either directly or indirectly, when those inhibitory neurons are activated by a specific pattern of tactile and proprioceptive input.
(12) Although they may occur spontaneously, they are commonly precipitated by tactile stimulation or movement of the extremity.
(13) The oscillatory activity was not affected by anesthesia, but it was often reduced by tactile stimulation or self-initiated movements.
(14) Detection of estrus in mares is problematic in that it requires the presence (or at least facsimile acoustic or tactile stimuli) or a stallion.
(15) The usefulness of tactile devices as aids to lipreading has been established.
(16) Tactile stimuli were applied to the right index fingertip at intervals ranging from 63 to 1,000 msec after the completion of rapid thumb movement.
(17) We previously reported a modality-specific layering of leg sensory axons in the CNS of the flies Phormia regina and Drosophila melanogaster with tactile and gustatory axons projecting into a ventral layer and the proprioceptive hair plate axons into an intermediate layer.
(18) Profound inhibitions of the second phase were also produced by tactile segmental stimulation and noxious stimuli applied to widespread areas of the body (diffuse noxious inhibitory controls).
(19) The apparatus is easily constructed, easily operated, and markedly increases the control of variables in tactile form perception experiments.
(20) Double burst stimulation (DBS) is a new nerve stimulation pattern introduced to facilitate tactile evaluation of recovery from neuromuscular blockade.