(1) Aside from the occasional curious swan, fish or dragonfly I’m alone for the duration of my 40-minute dip.
(2) These connectivity patterns indicate that the networks may synthesize patterns of activity needed for biological function; in this case, flight patterns carried out in the mesothoracic ganglion of the dragonfly.
(3) The chromosomes of the active previtellogenic oocytes of the dragonfly Cordulia aenea L. extrude into the cytoplasm a substance, which is subsequently found there in the form of granulofibrillar masses.
(4) A neuropeptide with adipokinetic activity in Locusta migratoria and hypertrehalosaemic activity in Periplaneta americana was purified by reversed-phase high performance liquid chromatography from the corpus cardiacum of the dragonfly, Libellula auripennis.
(5) The flight muscle preparations of the dragonfly Pantala flavescens and the aquatic beetle Cybister confusus showed extremely low levels of lactic dehydrogenase activity and high levels of alpha-glycerophosphate dehydrogenase (insoluble) activity.
(6) The larvae of dragonflies and scale insects revealed the highest activity (eliminated from 67 to 77% cercaria).
(7) Research on the transmission of Hemiurid Trematode Halipegus ovocaudatus in experimental and natural conditions demonstrates the following: --the miracidium grows into a sporocyst producing rediae in the Mollusc Planorbis planorbis; -- the cystophorous cercariae become mesocercariae in the hemocoele of Copepodes or finally Ostracodes when swallowed; -- the mesocercariae become matacercariae in the mesenteron of larval Odonates (Zygoptera and Anisoptera) when these larvae swallow the Crustacea; -- the metacercariae become become adults in the Amphibial Rana ridibundal perezi which feeds on dragonflies.
(8) Retinoids in the compound eyes of nymphs and adult dragonflies in 11 families of the 3 suborders were extracted by the oxime method, and analysed by high performance liquid chromatography.
(9) Differences in oxygen consumption attributable to apparent specific dynamic action (SDA) were measured in relation to feeding level in the dragonfly naiad Somatochlora cingulata exposed to low pH and sublethal aluminum concentration plus low pH.
(10) The apposition eyes of the corduliid dragonfly Hemicordulia tau are each divided by pigment colour, facet size and facet arrangement into three regions: dorsal, ventral, and a posterior larval strip.
(11) Cercariae penerate and encyst in dragonfly nymphs, Tramea sp., Libellula sp., Anax sp., and in damselfly nymphs, Enallagma spp.
(12) The mechanical action and innervation of the major flight muscles of dragonflies are described.
(13) The injection of low doses of bacteria into the aquatic larvae of dragonflies (Aeschna cyanea, Odonata, Paleoptera) induces the appearance in their hemolymph of a potent antibacterial activity.
(14) The ovaries consist of large number of panoistic ovarioles in the last instar nymph and the adult dragonfly Orthetrum chrysis (Selys).
(15) Simultaneous recordings from over 50 neural cells were obtained from the dragonfly ganglia.
(16) You may find bitterns making their basso profundo hoot, or you could see otters, dragonflies and adders.
(17) Experiments have been made on 4 dragonfly species -- Sympetrum vulgatum, S. flaveolum, S sanguineum, S. danae.
(18) It is assumed that high-frequency spatial filtering in dragonflies is provided by strong lateral inhibition in retinotopic projection.
(19) The behaviour of the dragonfly E. fatime was observed in the field in the Near East, in Turkey and on Rhodos in the summers of 1971 and 1973.
(20) However, the ventral area of the true dragonflies' compound eye which did not include the large ommatidia contained both retinals, and the 3-OH ratio was more than ten.
Spindle
Definition:
(n.) The long, round, slender rod or pin in spinning wheels by which the thread is twisted, and on which, when twisted, it is wound; also, the pin on which the bobbin is held in a spinning machine, or in the shuttle of a loom.
(n.) A slender rod or pin on which anything turns; an axis; as, the spindle of a vane.
(n.) The shaft, mandrel, or arbor, in a machine tool, as a lathe or drilling machine, etc., which causes the work to revolve, or carries a tool or center, etc.
(n.) The vertical rod on which the runner of a grinding mill turns.
(n.) A shaft or pipe on which a core of sand is formed.
(n.) The fusee of a watch.
(n.) A long and slender stalk resembling a spindle.
(n.) A yarn measure containing, in cotton yarn, 15,120 yards; in linen yarn, 14,400 yards.
(n.) A solid generated by the revolution of a curved line about its base or double ordinate or chord.
(n.) Any marine univalve shell of the genus Rostellaria; -- called also spindle stromb.
(n.) Any marine gastropod of the genus Fusus.
(v. i.) To shoot or grow into a long, slender stalk or body; to become disproportionately tall and slender.
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) Actin is present in chromosomal spindle fibres, with consistent polarity.
(3) The aim was to clarify the nature of their constituent cells, specifically the giant ganglion-like cells and spindle cells, and to discuss the implications for histogenesis.
(4) Despite severe defects in the 1st or 2nd meiotic spindles in all mutants, no effect on mitosis was observed.
(5) The unsatisfactory smear showed atypical spindle cells.
(6) The cortical thresholds for contraction of m. extensor digitorum communis and for acceleration of the discharges of its muscle spindles have therefore been compared.2.
(7) Out of the remaining 14 cases six tumours consisted of epithelioid cells, one--spindle-shaped and seven were of mixed structure.
(8) Fibroblastic cells were characterized by their spindle shape, content of a mucopolysaccharide, their relative inability to synthesize infectious influenza virus, and production of a cell-associated noninfectious hemagglutinin.
(9) Germinal vesicle stage oocytes undergo perinuclear aggregation of acidic organelles during GVBD and these organelles subsequently disperse into the cell cortex as the first meiotic spindle migrates to the oocyte periphery.
(10) This is the first study identifying the birefringence of the spindle microtubules as well as three sets of microfilamentous structure in Dictyostelium.
(11) In reviewing recent progress concerning the motor system and drug action, the following subjects will be discussed on the basis of our data: 1) the mechanisms of action of mephenesin and baclofen, 2) baclofen and gamma-aminobutyric acid B (GABAB) receptor, 3) GABA-, benzodiazepine receptors, 4) control of spinal motor system by descending noradrenergic neuron, 5) pharmacology of the muscle spindle, and 6) pharmaco-metrics of centrally acting muscle relaxants.
(12) The V79 cells were treated for 30 min and in general, loss of a stainable spindle could be demonstrated at slightly higher concentrations than c-mitosis.
(13) Seven tumours were predominantly of blue and spindle-cell, fascicular type, resembling malignant peripheral nerve sheath tumour and at times monophasic synovial sarcoma.
(14) To our knowledge, peripheral adenocarcinoma of the lung with a spindle-cell component has not been described previously.
(15) H-protein altered the structure of the LMM paracrystals, especially the spindle-shaped ones.
(16) Isolated nuclei from green leaf tissue of tomato plants infected with potato spindle tuber viroid (PSTVd) were bound to microscope slides, fixed with formaldehyde and hybridized with biotinylated transcripts of cloned PSTVd cDNA.
(17) The wire functioned as a spindle along which the distraction of the osteotomized bone fragments was continued.
(18) It is suggested that contracting extrafusal muscle fibres can modulate the discharge pattern of spindle endings and contribute to the variability of discharge during a voluntary contraction.
(19) In the same subject, also the ratio between the number of the muscle spindles found in m. rectus dorsalis and that of m. levator palpebrae superioris was examined.
(20) We tested nine (cadmium chloride, chloral hydrate, colchicine, diazepam, econazole nitrate, hydroquinone, pyrimethamine, thiabendazole, thimerosal) of the 10 known or suspected spindle poisons of the coordinated programme to study aneuploidy induction sponsored by the Commission of the European Communities using Saccharomyces cerevisiae D61.M (mitotic chromosomal malsegregation system).