(n.) A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively.
(n.) The body or the head of a comet.
(n.) An incipient ovule of soft cellular tissue.
(n.) A whole seed, as contained within the seed coats.
(n.) A body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division.
(n.) The tip, or earliest part, of a univalve or bivalve shell.
(n.) The central part around which additional growths are added, as of an operculum.
(n.) A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks.
Example Sentences:
(1) Microionophoretically applied excitatory amino acids induced firing of extracellularly recorded single units in a tissue slice preparation of the mouse cochlear nucleus, and the similarly applied antagonist 2-amino-5-phosphonovalerate (2APV) was demonstrated to be a selective N-methyl-D-aspartate (NMDA) receptor antagonist.
(2) The present results provide no evidence for a clear morphological substrate for electrotonic transmission in the somatic efferent portion of the primate oculomotor nucleus.
(3) In the caudal spinal trigeminal nucleus (Vc), the collaterals of one half of the periodontium afferent fibers terminated mainly in lamina V at the rostral and middle levels of Vc.
(4) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
(5) hypoglossal nucleus), whereas in other areas the angiotensinogen gene was expressed only in a certain population of glial cells.
(6) Local application of 8-OH-DPAT (0-5 micrograms) into the median raphe nucleus, facilitated male rat sexual behavior, as evidenced by a decrease in number of intromissions preceding ejaculation and in time to ejaculation.
(7) In addition, lightly immunostained cells were distinguished in the caudal portion of the hypothalamic arcuate nucleus, area of tuber cinereum, retrochiasmatic area, and rostral portion of the paraventricular thalamic nucleus after colchicine treatment.
(8) Arising of the nucleus from a polyheteronomous nucleoid of proeukaryotes.
(9) It is possible that the IgE that linked abnormally with the propofol had specific binding sites for the phenyl nucleus and the isopropyl groups, which are present in propofol and many other drugs.
(10) We conclude that neuronal activities in the region of the retrofacial nucleus are important both in the integration of stimuli from the central chemoreceptors and in defining the discharge patterns of respiratory neurons.
(11) A 68 year-old man with a history of right thalamic hemorrhage demonstrated radiologically in the pulvinar and posterior portion of the dorsomedian nucleus developed a clinical picture of severe physical sequelae associated with major affective, behavioral and psychic disorders.
(12) While the heaviest anterogradely labeled ascending projections were observed to the contralateral ventral posterolateral nucleus of the thalamus, pars oralis (VPLo), efferent projections were also observed to the contralateral ventrolateral thalamic nucleus (VLc) and central lateral (CL) nucleus of the thalamic intralaminar complex, magnocellular (and to a lesser extent parvicellular) red nucleus, nucleus of Darkschewitsch, zona incerta, nucleus of the posterior commissure, lateral intermediate layer and deep layer of the superior colliculus, dorsolateral periaqueductal gray, contralateral nucleus reticularis tegmenti pontis and basilar pontine nuclei (especially dorsal and peduncular), and dorsal (DAO) and medial (MAO) accessory olivary nuclei, ipsilateral lateral (external) cuneate nucleus (LCN) and lateral reticular nucleus (LRN), and to a lesser extent the caudal medial vestibular nucleus (MVN) and caudal nucleus prepositus hypoglossi (NPH), and dorsal medullary raphe.
(13) In contrast to this, adrenalectomy decreased ANP levels markedly in the organum vasculosum laminae terminalis and preoptic periventricular nucleus, which are reportedly involved in the central regulation of salt and water homeostasis.
(14) The shape of the nucleus changes from ovoid to a distinctive, radially splayed lobulated structure.
(15) Immunocytochemical analysis also suggested that bFGF immunoreactivity was present in the nucleus as well as the cytoplasm of astrocytes and CA2 neurons.
(16) The effect of Y-516 on the hyperactivity induced by dopamine injected bilaterally into the nucleus accumbens was compared with those of clocapramine (CCP), haloperidol (HPD) and chlorpromazine (CPZ).
(17) Moderately differentiated tumor revealed a wider range of nucleus size, less clustering (coefficient--3.59) and more hyperchromatic (70.1%) and "bare" (49.4%) nuclei and large nucleoli (22.2%).
(18) The majority of intensively stained and densely packed cells have been observed in tv nucleus.
(19) Following electrical stimulation of the hypothalamic paraventricular nucleus (PVN) area, 21% of the neurons were orthodromically excited, 6% were inhibited and 2.5% were antidromically activated.
(20) Proenkephalin A-related immunoreactive neuronal perikarya were detected in the central gray, reticular formation, nucleus raphes, trapezoid body, nucleus parabrachialis lateralis and medialis, nucleus spinalis nervi trigemini, nucleus dorsalis nervi vagi, and in the nucleus tractus solitarii.
Pivot
Definition:
(n.) A fixed pin or short axis, on the end of which a wheel or other body turns.
(n.) The end of a shaft or arbor which rests and turns in a support; as, the pivot of an arbor in a watch.
(n.) Hence, figuratively: A turning point or condition; that on which important results depend; as, the pivot of an enterprise.
(n.) The officer or soldier who simply turns in his place whike the company or line moves around him in wheeling; -- called also pivot man.
(v. t.) To place on a pivot.
Example Sentences:
(1) Excessive accumulation of hydrogen ions in the brain may play a pivotal role in initiating the necrosis seen in infarction and following hyperglycemic augmentation of ischemic brain damage.
(2) The function of motherese has become a pivotal issue in the language-learning literature.
(3) Glucose is the principal source for energy production in the brain, and undisturbed glucose metabolism is pivotally significant for normal function of this organ.
(4) Currently employed clinical indicators of perfusion provide inadequate warning of developing hazards caused by marginal perfusion in certain vital organs or "peripheral" tissues that are pivotal to postsurgical wound healing.
(5) Endobronchial biopsy and bronchial lavage studies following inhaled PAF did not show any increase in the number of activation of eosinophils, which are pivotal in the pathogenesis of BHR.
(6) Turkish police have stormed the offices of an opposition media group days before the country’s pivotal election, in a crackdown on companies linked to a US-based cleric and critic of President Recep Tayyip Erdoğan .
(7) It was the introduction of Aluko that proved pivotal.
(8) This article discusses the effect of existing statutes and case law on three pivotal questions: To what sort of information are people entitled?
(9) It has been generally accepted that the deregulation of oncogenes or their regulators play a pivotal role in progression of this prevalent disease.
(10) The fact that Fraser suggested Pinter write one of the pivotal scenes, in which Emma challenges Jerry to leave his wife, was a revelation, he says.
(11) Marine Rotational Force – Darwin” (MRF-D) is one of four American marine air ground task forces (MAGTFs) in the Asia-Pacific region, along with those in Guam, Hawaii and Okinawa, the sum of which make up a central strategic pillar of the pivot.
(12) Facebook Twitter Pinterest ‘I’m president, they’re not’: Donald Trump at rally in Washington Trump is “much more resilient” than his opponents allow, said Newt Gingrich, the former House speaker, before pivoting to a plug for his new book, Understanding Trump .
(13) Twitter has become pivotal in organising anti-government dissent in the past year: the Occupy Gezi movement, which marches against the recently passed internet censorship bill that allows the government to block any content within four hours without a court order, and the massive street protest and the funeral attended by hundreds of thousands after the death of 15-year-old Berkin Elvan , were initiated via social media.
(14) Verbal and non verbal communication skills (with the patient and the team) are pivotal in this approach; relatives are considered partners in the care of the patient and an essential element of the caring environment.
(15) This year will mark the start of a pivotal chapter for development as the UN finalises ambitious goals this autumn to improve all lives and secure a healthy planet.
(16) The 5' cap structure of eucaryotic mRNA plays a pivotal role in mRNA metabolism.
(17) Thirty years after one of the pivotal clashes in the miners' strike of 1984 when violent confrontations erupted at the Orgreave coking plant, the area outside Sheffield could barely look more different.
(18) Arthritic symptoms were present at operation in thirty patients, while thirty-four had no postoperative objective signs of pivot shift or instability.
(19) Two lines of evidence indicate that the general transcription factor TFIIB is a pivotal component in the mechanism by which an acidic activator functions.
(20) If cortical actin filaments are disrupted with dihydrocytochalasin B, processes form that are similar to those induced by dBcAMP suggesting that the disruption of the cortical actin network is the pivotal step in process formation.