(1) However, this deficit was observed only when the sample-place preceded but not when it followed the interpolated visits (second experiment).
(2) Surprisingly, the clonal elimination of V beta 6+ cells is preceded by marked expansion of these cells.
(3) Peaks in the sperm index were preceded by 6 days with peaks in the serum testosterone concentration.
(4) 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.
(5) Comparison of developmental series of D. merriami and T. bottae revealed that the decline of the artery in the latter species is preceded by a greater degree of arterial coarctation, or narrowing, as it passes though the developing stapes.
(6) In addition to the 89 cases of sudden and unexpected death before the age of 50 (preceded by some modification of the patient's life style in 29 cases), 11 cases were symptomatic and 5 were transplanted with a good result.
(7) There is precedent in Islamic law for saving the life of the mother where there is a clear choice of allowing either the fetus or the mother to survive.
(8) In some animals, the response was marked vasodilation, whereas in others transient vasoconstriction preceded the vasodilation.
(9) When Zn injection was preceded by a Cd injection, induction as measured by MT-1 mRNA and MT concentrations were approximately additive in liver.
(10) The results indicated that 48% of the sample either regularly checked their own skin or had it checked by another person (such as a spouse), and 17% had been screened by a general practitioner in the preceding 12 months.
(11) TIA preceded intracerebral hemorrhage in 11% and brain infarction in 15-20%.
(12) In all cases foetal administration of glucocorticoid led to the onset of labour, and lambing, and in all animals the hormonal changes preceding parturition were indistinguishable (either qualitatively or quantitatively) from the changes observed in animals carrying intact lambs.
(13) In the improved group, the families reported that the gait abnormality preceded the dementia in 11 patients and occurred at the same time in five.
(14) This effect could be intensified by a preceding treatment of the animal with androgens.
(15) These neurons can be identified uniquely by 3H-thymidine exposure during the week preceding the neurogenesis of cortical layer 6.
(16) They were preceded by the publication of The Success and Failure of Picasso (1965) and Art and Revolution: Ernst Neizvestny and the Role of the Artist in the USSR (1969); in one, he made a hopeless mess of Picasso’s later career, though he was not alone in this; in the other, he elevated a brave dissident artist beyond his talents.
(17) A manual search, derived from the references of these papers, was performed to obtain relevant citations for the years preceding 1970.
(18) A traumatic factor in the aetiology of the AVM was also discussed, since the patient had had two preceding episodes of traffic accidents with cranial and lumbar injury.
(19) Neither was the intra-VMH infusion of MA effective if: (i) the rats were not primed with estrogen; (ii) the tips of the cannulae were outside the VMH; or (iii) it was preceded by an intra-VMH infusion of the alpha 1b-antagonist, chloroethylclonidine (CEC).
(20) The first is that the supposed exaggerated winter birthrate among process schizophrenics actually represents a reduction in spring-fall births caused by prenatal exposure to infectious diseases during the preceding winter--i.e., a high prenatal death rate in process preschizophrenic fetuses.
Precession
Definition:
(n.) The act of going before, or forward.
Example Sentences:
(1) Self-reported and observer-rated signs and symptoms of nicotine withdrawal were assessed precessation and 2, 7, 14, 30, 90, and 180 days postcessation in smokers who quit on their own for 30 days.
(2) This review of basic physics of nuclear magnetic resonance (NMR) discusses precession of magnetic nuclei in a static external field, introduces the concept of the rotating frame, and describes excitation of nuclei by an RF field.
(3) By allowing a free precession interval before signal acquisition, time is left for field gradients to be switched and for undesirable transients to decay.
(4) We report in vitro and in vivo MR studies of hemorrhage using the gradient-echo pulse sequence, FISP (steady state free precession) and FLASH (spoiling of transverse magnetization) at 1.5 Tesla.
(5) Precession photographs from these crystal forms are very alike, suggesting the molecular packing to be similar in all three forms.
(6) Crystals were analyzed using precession photography and were assigned to trigonal space group R32 with unit cell dimensions a = b = 115 A, c = 385 A.
(7) The results obtained in a previous study using 131I fibrinogen in cancerous patients suggested a local intravascular clotting precess.
(8) According to the study of the 8 cases published since 1956 and of this personal case the precession of a benign porosyringeal tumour seems probable but has never been proved.
(9) Canavanine also affects regulatory and catalytic reactions of arginine metabolism, arginine uptake, formation of structural components, and other cellular precesses.
(10) The temperature, concentration and Larmor precession frequency dependences can be well described by the conception of fast exchange in a simple biphasic model of water molecules rotation in the first hydration layer with slight anisotropy of motion.
(11) The space group and unit cell dimensions were determined with a precession camera and a four-circle diffractometer to be C222(1), and a = 157.1 A, b = 85.5 A, and c = 79.7 A, respectively.
(12) Microperfusion of pertubular capillaries failed to demonstrate urinary precession of 3H-gentamicin over 14C-inulin, a finding which argues against a rapid transtubular secretory flux of gentamicin.
(13) When this residual phase coherency is utilized in conjunction with the fast SSFP (steady-state free precession) technique, both the FID and the echo signals can be obtained.
(14) Steady-state free precession (SSFP) pulse sequences can produce magnetic resonance (MR) images rapidly, in which cerebrospinal fluid (CSF) is several times more intense than the other tissues.
(15) The detector is stationary which causes a distortion that is negligible for precession angles less than 10 degrees.
(16) There exists an age-related precession of taurine uptake values by brush border membrane vesicles prepared from nursing rats from youngest to oldest.
(17) Naturally processed peptide fragments bound to MHC class II molecules are peptides of 13-17 amino acids which appear to be precessively truncated from the carboxy terminus, perhaps after binding to the MHC class II molecule.
(18) The space group was determined using screenless small-angle precession photographs, and was confirmed by analyzing area detector diffraction data with the XENGEN programs for indexing and refinement.
(19) In a series of 18 consecutive cases of acute significant inversion trauma to the ankle, a three-dimensional fast imaging with steady-state precession pulse sequence (3D FISP) was performed.
(20) Results indicated that a FISP (fast imaging with steady precession) sequence with a TR of 50 msec, TE of 15 msec, velocity compensation in the read and section-select directions, acceleration compensation in the read direction, anisotropic volume, and a 1.25-mm partition thickness produced three-dimensional angiographic MR images that were accurate and reproducible in the depiction of the major intracranial vessels.