(n.) A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids.
Example Sentences:
(1) Since the employment of microwave energy for defrosting biological tissues and for microwave-aided diagnosis in cryosurgery is very promising, the problem of ensuring the match between the contact antennas (applicators) and the frozen biological object has become a pressing one.
(2) Animals continued to display escape responses after removal of eyestalks and antennae.
(3) In all cases, the antennas were omnidirectional co-linear arrays.
(4) Cyanobacteria utilize multimeric protein complexes, the phycobilisomes, as their major light-harvesting antennae.
(5) This substrate specificity correlates with the oligosaccharide residues thus far defined on glycoproteins of CHP 134 cells since NeuAc and Fuc alpha 1----3GlcNAc have yet to be detected on the same oligosaccharide antenna.
(6) Some antennae were equipped with an external cooling jacket.
(7) As illustrated by some antennas the dependence of sanitary and limitation zones on the wavelength, radiated power and the type of soil has been studied.
(8) Linkage crosses and X-autosome translocations were used to assign short antenna to the right arm of chromosome 3 about 45 map units proximal to stripe (st+), and melanotic was located on chromosome 2 near the centromere.
(9) Representative blood flow values were assigned within the tumour, and the applied SAR distribution was based on a previously developed antenna theory.
(10) Subfamilies II and III are expressed in both male and female antennae, appear to associate with general-odorant-sensitive neurons, and are highly conserved when compared among species.
(11) The 2450 MHz antenna array was the most effective at heating the shorter tumours, while the 433 MHz antenna array heated the longer tumours most effectively.
(12) Theoretical three-dimensional power deposition and temperature distributions were calculated for interstitial hyperthermia microwave antenna arrays driven at 915 and 2450 MHz in brain tissue.
(13) Diantennary structures without GalNAc were present as partially sialylated and partially (1-->6)-alpha-L-fucosylated structures in Fractions A and B. Sequences containing alpha-D-Galp-(1-->3)-beta-D-Gal on the alpha-D-Man-(1-->6) antenna, and beta-D-GalpNAc-(1-->4)-beta-D-GlcNAc and alpha-NeuAc-(2-->6)-beta-D-GalpNAc-(1-->4)-beta-D-GlcNAc on the alpha-D-Man-(1-->3) antenna were characterized in the oligosaccharide-alditols obtained by reductive cleavage of Fraction B.
(14) The antennas are made of thin coaxial cables with a radiation gap or gaps on the outer conductor.
(15) The severity and distribution of these histological changes correlated well with the thermal profile of the helical antenna.
(16) The structure of the antennae of PBLs was characterized by glcNac-gal and galNac-gal-Sa sequences, while in lymphomas additional asialo as well as sialylated galNac containing antennae have been identified.
(17) These results provide evidence that chlorophyll-protein complexes closely represent the state of the bulk of antenna chlorophyll in vivo.
(18) An accidental deep intraorbital penetration of a radio antenna tip damaged the optic nerve and caused immediate amaurosis in a 19-year-old female with normal funduscopic, electroretinographic and computerized tomographic orbital findings.
(19) Excellent qualitative agreement is found between the theoretical heating pattern and the measured pattern in a non-perfused phantom on a 2 cm x 2 antenna array.
(20) In the present investigation, flash-induced absorbance changes at 605 nm have demonstrated that the upper fraction is enriched two-fold in photochemical reaction center activity when compared to chromotophores; a similar enrichment in the reaction center-associated B-875 antenna bacteriochlorophyll complex was also observed.
Peduncle
Definition:
(n.) The stem or stalk that supports the flower or fruit of a plant, or a cluster of flowers or fruits.
(n.) A sort of stem by which certain shells and barnacles are attached to other objects. See Illust. of Barnacle.
(n.) A band of nervous or fibrous matter connecting different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.
Example Sentences:
(1) Exposure to short photoperiod increased the number of immunoreactive cell bodies within the anterior hypothalamus and preoptic area (AHPOA) and also increased the optical density for staining of immunoreactive cell bodies in the AHPOA and olfactory peduncle.
(2) In excised regenerating peduncles algae divide before digestive cells, and at the onset of digestive cell division mitotic cells were found to contain almost twice the number of algae as before excision.
(3) ruber, anterodorsolateral midbrain tegmentum, superior and inferior colliculi, pontine gray, cerebral peduncles, medial pontine reticular formation, raphe and vestibular nuclei did not affect the acoustic structure of the calls tested.
(4) The chief characteristics of stage 18 (approximately 44 postovulatory days) are rapidly growing basal nuclei; appearance of the extraventricular bulge of the cerebellum (flocculus), of the superior cerebellar peduncle, and of follicles in the epiphysis cerebri; and the presence of vomeronasal organ and ganglion, of the bucconasal membrane, and of isolated semicircular ducts.
(5) Individual axons leave the ventral peduncle and run dorsally in the transverse plane, entering the dorsal lateral geniculate complex from its ventral edge.
(6) All of those lesions were located in the brainstem or cerebellar peduncles and were identified by NMR, but missed by CT.
(7) This copper-chelating agent produces demyelination in the corpus callosum and superior cerebellar peduncles, and when treatment is stopped, there is rapid remyelination.
(8) In our case there was a "flow" of carcinomatous cells along the fistula, which entered the meningocele, invading the subdural space as far as the peduncle.
(9) The presence of Arg-Phe-amide (RFamide)-like peptides in dense-cored vesicles in neurons of the peduncle of Hydra was demonstrated by immunogold electron microscopy.
(10) The dorsolateral, lateral, and medial pontine nuclei and the middle cerebellar peduncle were effective stimulation-CS sites for training.
(11) Other precerebellar nuclei which send their cerebellipetal axons to the inferior cerebellar peduncle, such as the external cuneate nucleus, the lateral reticular nucleus and the arcuate nucleus, were normally preserved.
(12) In these pontocerebellar infarcts the middle cerebellar peduncle was the core of the affected territory.
(13) Conditioning-test procedures revealed that cerebral peduncle stimulation strongly blocked the thalamocortical (test) response, especially after ethanol, but thalamic stimulation (conditioning) had no effect upon the surface negative wave.
(14) Pathologically there was necrosis of the optic chiasma and focal areas of myelin sheath vacuolation or demyelination in certain areas of the brain, especially in the cerebellar peduncles.
(15) Section of the superior cerebellar peduncle just rostral to the deep cerebellar nuclei results in degenerating axon terminals within the contralateral inferior olive.
(16) These high intensity areas of internal capsule, brain stem and middle cerebellar peduncle on T2 weighted image would be significant for understanding pyramidal tract sign and cerebellar sign of this case.
(17) Postmortem studies were carried out upon five cases and showed either pathological changes in the cerebellum or a lesion involving the cerebellar peduncles in the brain stem.
(18) We concluded that in combination with intra-operative CSF drainage and the sitting position the infratentorial supracerebellar approach allows safe access to lesions situated in an area limited by the posterior part of the third ventricle, the fastigium level and both cerebellar peduncles.
(19) The centre for control of the four eye-muscle nerves in the anterior lateral pedal lobe receives many fibres direct from the statocyst and from the peduncle and basal lobes, but none direct from the optic lobe.
(20) Cerebellar cortex, cerebellar peduncles and spinocerebellar tracts were preserved.