(n.) The quality of being dense, close, or thick; compactness; -- opposed to rarity.
(n.) The ratio of mass, or quantity of matter, to bulk or volume, esp. as compared with the mass and volume of a portion of some substance used as a standard.
(n.) Depth of shade.
Example Sentences:
(1) It is suggested that the Japanese may have lower trabecular bone mineral density than Caucasians but may also have a lower threshold for fracture of the vertebrae.
(2) Ca2+ transport was positively correlated with MR cell density.
(3) Osteoporosis is characterized by a reduction in bone density.
(4) However, four of ten young adult outer arm (relatively sun-exposed) and one of ten young adult inner arm (relatively sun-protected) fibroblasts lines increased their saturation density in response to retinoic acid.
(5) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
(6) In schizophrenic patients the density of dopamine uptake sites in the basal ganglia was slightly reduced, mainly in the middle third of putamen.
(7) Size analysis of the solubilized IgA IP employing sucrose density gradient ultracentrifugation, indicated that these were heterogeneous, with a size generally larger than 19 S.
(8) Estimates of the risk probability for each dose level and sacrifice time are found utilizing the sample likelihood as the posterior density.
(9) We report on a patient, with a CT-verified low density lesion in the right parietal area, who exhibited not only deficits in left conceptual space, but also in reading, writing, and the production of speech.
(10) The compressive strength of bone is proportional to the square of the apparent density and to the strain rate raised to the 0.06 power.
(11) We assessed changes in brain water content, as reflected by changes in tissue density, during the early recirculation period following severe forebrain ischemia.
(12) Macrophages internalize aggregated low density lipoprotein (LDL) by LDL receptor-dependent phagocytosis.
(13) The capillary-adipocyte distances were shorter and the vascularization density was higher in old rats.
(14) By means of computed tomography (CT) values related to bone density and mass were assessed in the femoral head, neck, trochanter, shaft, and condyles.
(15) When compared with nonspecialized regions of the cell membranes, these contact sites were characterized by a decreased intercellular distance, subplasmalemmal densities and coated pits.
(16) Furthermore, high-density catalase-positive--but not catalase-negative--E. coli can survive and multiply in the presence of competitive, peroxide-generating streptococci.
(17) The deep cerebellar nuclei were moderately labeled at birth and gradually decreased in density thereafter.
(18) In spite of important differences in size, chemical composition, polymer density, and configuration, biological macromolecules indeed manifest some of the essential physical-chemical properties of gels.
(19) It is especially efficacious in evaluating patients with cystic lesions, especially those with complex cysts not clearly of water density.
(20) These observations suggest that the liver secretes disk-shaped lipid bilayer particles which represent both the nascent form of high density lipoproteins and preferred substrate for lecithin-cholesterol acyltransferase.
Pet
Definition:
(n.) A cade lamb; a lamb brought up by hand.
(n.) Any person or animal especially cherished and indulged; a fondling; a darling; often, a favorite child.
(n.) A slight fit of peevishness or fretfulness.
(a.) Petted; indulged; admired; cherished; as, a pet child; a pet lamb; a pet theory.
(v. t.) To treat as a pet; to fondle; to indulge; as, she was petted and spoiled.
(v. i.) To be a pet.
Example Sentences:
(1) In cases with unilateral hypoperfusion, the percentage of the activity in the lesion to that in the contralateral normal cortex on the early SPECT was correlated well with that on CBF measured by PET (r = 0.870, p less than 0.001).
(2) However, localizing a functional region with PET has been severely limited by the poor resolving properties of PET devices.
(3) The PET studies suggest dysfunction of the prefrontal cortex as a result of damage to the lentiform nuclei.
(4) If the PET measurement is commenced prior to arteriovenous equilibrium, significant errors occur in calculated CBV.
(5) Single photon emission computed tomography (SPECT) and positron emission tomography (PET) are now being used to improve the information available from radioisotopic imaging of patients with cancer.
(6) The muscarinic receptor agonist carbachol had no significant effects on [3H]PEt and [3H]IP formation in nontransfected HEK cells.
(7) Appropriate corrections for atrophy should be employed if current PET scanners are to accurately measure actual brain tissue metabolism in various pathologic states.
(8) Using a 1-stage random-digit dial telephone survey, we estimated the number of pet dogs and cats and cancer case ascertainment in the principal catchment area of an animal tumor registry in Indiana, the Purdue Comparative Oncology Program (PCOP).
(9) Such information could be most useful for in vivo receptor visualization studies using positron emission tomography (PET) scanning.
(10) Half the adolescents completed the child maltreatment instrument first, while the rest completed the pet maltreatment instrument.
(11) In this study, PET images were obtained using [18F]-labeled fluorodeoxyglucose, a marker for glucose metabolism.
(12) The global black market in animal and plants, sold as food, traditional medicines and exotic pets, is worth billions and sees an estimated 350 million specimens traded every year.
(13) The distribution of 1-11C-acetoacetic acid after injection into adult Wistar rats and cats was investigated by PET.
(14) If we start letting movie stars – even though they’ve been the sexiest man alive twice – to come into our nation (with pets), then why don’t we just break the laws for everybody?” Joyce said at the time.
(15) We have developed a method that allows two sets of regional cerebral metabolic rates of glucose (rCMRglc) to be obtained in a single extended procedure using positron emission tomography (PET) and [18F]fluorodeoxyglucose (FDG).
(16) Metabolic PET studies also give insight into pathophysiologic mechanisms of epilepsy.
(17) In view of the number of PET studies involving low count rate acquisitions, there has been increasing interest recently in the development of positron cameras capable of fully three-dimensional acquisition and reconstruction.
(18) We performed dynamic positron emission tomographic (PET) studies of glucose utilization, using (18F) 2-fluoro-2-deoxy-D-glucose (FDG), in patients with probable Alzheimer's disease (AD) and healthy age-matched controls, to evaluate blood-brain-barrier glucose transport and glucose utilization rates in the disease.
(19) We used a 11C-glucose method for positron emission tomography (PET) while estimating cerebral glucose metabolism during human sleep with polysomnography (PSG).
(20) His mother is Denise Welch, late of Corrie and Loose Women, and his father his Tim Healy, who was briefly famous 30 years ago for his role in Auf Wiedersehen, Pet.