What's the difference between measurement and photometry?

Measurement


Definition:

  • (n.) The act or result of measuring; mensuration; as, measurement is required.
  • (n.) The extent, size, capacity, amount. or quantity ascertained by measuring; as, its measurement is five acres.

Example Sentences:

  • (1) Indicators for evaluation and monitoring and outcome measures are described within the context of health service management to describe control measure output in terms of community effectiveness.
  • (2) Carbon dioxide (CO2) levels, volumes, and temperatures of expired gas were measured from the tracheal and esophageal tubes.
  • (3) The results indicated that neuropsychological measures may serve to broaden the concept of intelligence and that a brain-related criterion may contribute to a fuller understanding of its nature.
  • (4) The measure destroyed the Justice Department’s plans to prosecute whatever Guantánamo detainees it could in federal courts.
  • (5) "We examined the reachability of social networking sites from our measurement infrastructure within Turkey, and found nothing unusual.
  • (6) However, when first trimester specimens were analyzed, the direct-product measurements were significantly larger than the corresponding 3H2O assay results.
  • (7) Activity of Na,K-ATPase activity was measured as a functional marker for synaptosomal membranes.
  • (8) Questionnaires were used and the respondent self-designation method measured leadership.
  • (9) Cantact placing reaction times were measured in cats which were either restrained in a hammock or supported in a conventional way.
  • (10) The rise of malaria despite of control measures involves several factors: the house spraying is no more accepted by a large percentage of house holders and the alternative larviciding has only a limited efficacy; the houses of American Indians have no walls to be sprayed; there is a continuous introduction of parasites by migrants.
  • (11) Theoretical findings on sterilization and disinfection measures are useless for the dental practice if their efficiency is put into question due to insufficient consideration of the special conditions of dental treatment.
  • (12) Heart rate (HR), pulmonary ventilation (V), oxygen consumption (VO2), carbon dioxide production (VCO2), and respiratory quotient (RQ) were measured.
  • (13) Participants (n=165) entering a week-long outpatient education program completed a protocol measuring self-care patterns, glycosylated hemoglobin levels, and emotional well-being.
  • (14) Measurement of the intraspinal monoamine level revealed a decrease in the intraspinal norepinephrine level in the treated animals.
  • (15) A progressively more precise approach to identifying affected individuals involves measuring body weight and height, then energy intake (or expenditure) and finally the basal metabolic rate (BMR).
  • (16) All subjects completed the Coping Strategies Questionnaire, which measures the use and perceived effectiveness of a variety of cognitive and behavioral coping strategies in controlling and decreasing pain.
  • (17) Although measurements are easily obtained with a tape measure, the validity of these measurements is not known.
  • (18) The goals in control patients were to attain normal values for all hemodynamic measurements.
  • (19) The fluctuations in [Ca2+]i measured with fura-2 were synchronized among the population of cells observed and were sensitive to extracellular Ca2+ concentration ([Ca2+]o).
  • (20) The 14C-aminopyrine breath test was used to measure liver function in 14 normal subjects, 16 patients with alcoholic cirrhosis, 14 alcoholics without cirrhosis, and 29 patients taking a variety of drugs.

Photometry


Definition:

  • (n.) That branch of science which treats of the measurement of the intensity of light.

Example Sentences:

  • (1) We studied the formation and structure of liquid crystalline phase of F-actin solutions by polarized light photometry, assuming that a small domain of the liquid crystalline phase works as a linear retardation plate.
  • (2) The nuclear DNA contents of 50 thyroid tumors were measured paraffin block samples and needle biopsies by using microscopic photometry, and the diagnostic value of this measurement was examined.
  • (3) Renal blood flow was measured by an electromagnetic flowmeter, glomerular filtration rate by creatinine clearance, urinary sodium by flame photometry and solute excretion by osmometry.
  • (4) Spectral luminous efficiency functions for mesopic vision were measured extensively to establish a basic data set for the mesopic photometry system.
  • (5) Various functional states of cells of sarcoma 45 in the course of its growth and regression were studied by photometry and spectral analysis using acridine orange.
  • (6) The effect of polyoxin D on Candida was evaluated in in vitro assays for its capacity to adhere to buccal epithelial cells (BEC), and by fluorescent-microscopy photometry and flow cytometry using cells stained with cellufluor (CF), a fluorochrome with affinity for chitin.
  • (7) The measurements in whole blood and plasma from intensive care patients were compared with flame photometry.
  • (8) SP-like immunoreactivity (SPLI) in the dorsal horns was quantitated using immunohistochemical staining and manual photometry.
  • (9) Concentrations were obtained per kilogram of dry mass, were converted to concentrations per litre of water content using known figures for water and solid concentration of nucleus and cytoplasm, and were then compared with measurements on cells from the same animal obtained by flame photometry.
  • (10) It is based on the microscopic photometry of stain intensities per area of functional units.
  • (11) The effect of Na and K ions on active Na transport was studied in guinea-pig auricles by means of flame photometry.
  • (12) Radiography and flame photometry have been compared as means of determining the end point of decalcification in relation to minimizing pulp-dentin separation in histological sections of teeth.
  • (13) The process of electrophoresis, a separation phenomenon, is mistakenly understood to include the sequential processes ancillary to analyte resolution, that is, staining and quantification, where the latter could be elution followed by photometry or integrating-calculating-densitometry.
  • (14) We conclude that the phasic, magnocellular cell system of the primate visual pathway underlies performance in the psychophysical task of heterochromatic flicker photometry.
  • (15) IV as a group were estimated by photometry of hydrolysed samples, using I as a reference.
  • (16) The contractile activity of the wall and valve of lymphatic microvessels (LM) of the rat mesentery were studied biomicroscopically by optic photometry.
  • (17) Intra-erythrocytic sodium was studied using hypotonic lysis and flame photometry after four washings with isotonic MgCl2 in 240 normotensive subjects (aged 10-45 years) on a free diet with (F+, 121 patients) or without (F-, 119 patients) hypertensive parents, recruited from a random sample of the general population.
  • (18) The precision levels of available alternatives for electrolyte analysis namely: flame photometry, direct and indirect ion selective electrode methods, dry chemistry, and the newly developed enzymatic approach for sodium and potassium analysis are discussed.
  • (19) The T3 response of other cardiac mRNAs was quantitated using in vitro translation, separation of 35S methionine labeled translational products and their quantitation by digital matrix photometry.
  • (20) Here we consider cancelling opposed movements for photometry with coloured lights, and some recent experiments, carried out with John Harris, on nulling 'real' against opposed 'apparent' motion for teasing out some neural movement channels.

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