What's the difference between diameter and pi?

Diameter


Definition:

  • (n.) Any right line passing through the center of a figure or body, as a circle, conic section, sphere, cube, etc., and terminated by the opposite boundaries; a straight line which bisects a system of parallel chords drawn in a curve.
  • (n.) A diametral plane.
  • (n.) The length of a straight line through the center of an object from side to side; width; thickness; as, the diameter of a tree or rock.
  • (n.) The distance through the lower part of the shaft of a column, used as a standard measure for all parts of the order. See Module.

Example Sentences:

  • (1) Electronmicroscopical investigations have revealed that, under normal conditions, a minor vesicular transfer of intravenously injected peroxidase occurs across the endothelium in segments of arterioles, capillaries and venules, especially in arterioles with a diameter about 15-30 mu.
  • (2) Two kinds of silicafiberscopes with outer diameters 0.80 and 0.45 mm were used in the present study.
  • (3) A conduit of a diameter of 23 mm was made by hand with a glutaraldehyde preserved xenopericardial graft.
  • (4) Eighty interposition mesocaval shunts, using a knitted Dacron large diameter prosthesis, have been performed during the past five and one-half years.
  • (5) An experimental model was established in the ewe allowing one to predict with accuracy an antral follicle that coincidentally would either undergo ovulation (6-8 mm diameter) or atresia (3-4 mm diameter) following synchronization of luteal regression and the onset of the gonadotropin surge.
  • (6) F pili could be seen on cells of the latter strain but not on those of the parental strain or the strain bearing pColVF54 luminal diameter r. Pili other than F pili were not seen on cells of the strains bearing pF54 in either form.
  • (7) In the medium-size intermediate fibers, the number and diameter of the mitochondrial columns are intermediate between those of the red and white fibers.
  • (8) In the univariate life-table analysis, recurrence-free survival was significantly related to age, pTNM category, tumour size, presence of certain growth patterns, tumour necrosis, tumour infiltration in surrounding thyroid tissue and thyroid gland capsule, lymph node metastases, presence of extra-nodal tumour growth and number of positive lymph nodes, whereas only tumour diameter, thyroid gland capsular infiltration and presence of extra-nodal tumour growth remained as significant prognostic factors in the multivariate analysis.
  • (9) The inner diameters increased with age in the same way in both obese and control persons, indicating the the former are not protected against osteoporosis in the form of endosteal resorption.
  • (10) Our results show that stenosis of about one-third of the original external diameter of the artery and vein of the pedicle in our model did not have any significant influence on the survival of the flap and ligation of the femoral artery distal to the branch to the flap did not produce any statistical difference in the viability of the flap.
  • (11) However, when it has attained a length of about half the cell body diameter, it becomes SUP GLU+ and 6-11B-1+.
  • (12) In experiments using double and triple chamber cultures it was demonstrated that suppressive macrophages from advanced T8-Guérin tumor (diameter 5--6.5 cm) bearing rats produced a dialysable factor which suppressed the killer activity of lymphocytes from non-advanced T8-Guérin tumor (diameter 0.5--0.7 cm) bearing rats, as well as from nonadvanced h 18R tumor bearing rats and from Ehrlich ascites bearing mice, against T8-Guérin ascitic cells and, respectively, against h 18R ascitic and Ehrlich ascitic cells.
  • (13) Minimal breast cancer should include lobular carcinoma in situ (lobular neoplasia) and ductal carcinoma in situ regardless of nodal status, and (tentatively) invasive carcinoma smaller than 1 cm in total diameter, if axillary lymph nodes are not involved.
  • (14) The internal carotid diameters increased 20% to 30% for both the vein and synthetic patched arteries.
  • (15) Axonal regeneration with the ANG was equal to SAGs as measured by axonal diameters, physiological, and functional methods, although the SAG demonstrated statistically higher axonal counts.
  • (16) Light microscopic analyses revealed an age-dependent decrease in axon diameter.
  • (17) Striking features were non-atherosclerotic stenosis with negative Sudan III, seen in the ICA less than 200 mu in diameter of almost all the hearts of stages II and III rabbits.
  • (18) Blood flow was measured from gastric serosal vessels (average diameter, 1.6 mm) severed immediately after, 24 hours after, and 48 hours after ethanol injection.
  • (19) Viral particles in the cultures and the brain were of various sizes and shapes; particles ranged from 70 to over 160 nm in diameter, with a variable position of dense nucleoids and less dense core shells.
  • (20) Electromagnetic flow probes with an inner diameter of 2, 1.5 and 1 nm were used for studies on zero-line drifting and for calibration procedures in a series of rats and rabbits.

Pi


Definition:

  • (n.) A mass of type confusedly mixed or unsorted.
  • (v. t.) To put into a mixed and disordered condition, as type; to mix and disarrange the type of; as, to pi a form.

Example Sentences:

  • (1) Changes in cardiac adenosine triphosphate (ATP), phosphocreatine (PCr) and inorganic phosphate (Pi) were followed and intracellular pH (pHi) was estimated from the chemical shift of Pi.
  • (2) Based on the deduced amino acid sequence, rpL8 has a mass of 28,605 Da, a pI of 11.97, and contains 9.6% Arg and 11.9% Lys.
  • (3) The isoelectric points (pI) of E1 and E2 for all VEE strains studied were approx.
  • (4) There is some correlation between PI values and clinical symptoms, but it is not as well defined as that between SI values and clinical symptoms.
  • (5) It behaves as an acidic protein, pI 4.5--5.0, which is thermolabile and sulphydryl-sensitive.
  • (6) This light microscopic comparison of viable FDA- and nonviable PI-stained cysts of G. muris demonstrates that 2 types of cysts can be distinguished and implies that structural differences can be used to identify these subpopulations of cysts.
  • (7) Following each ischaemic period [ATP], [CrP], [Pi], and [H+] all recovered to control levels within 5-10 min of initiating reperfusion.
  • (8) An operant delayed-matching task was used to assess the role of proactive interference (PI) effects on short-term memory capacity of rats.
  • (9) It is intended to aid in finding the appropriate PI (proportional-integral) controller settings by means of computer simulation instead of real experiments with the system.
  • (10) Inclusion-forming and non-inclusion-forming elementary bodies focused in one band at pI 4.64.
  • (11) Proliferation of untransformed FDC-PI cells and the emergence of variants with improved adaptation to in vivo conditions appear to be important and possibly necessary steps in the pathogenesis of the disease.
  • (12) Our findings: (1) both forms, LC1 and LC3, migrate in the two species with rather similar electrophoretic constants (both in terms of pI and Mr); (2) the LC2 forms of rabbit and humans exhibit the same Mr but quite different pI values, the rabbit forms being more acidic; (3) the chain LC2Sb is resolved into two spots in both rabbit and humans.
  • (13) LM-fragment-8 competes for this binding to the same extent as unlabelled LM (75%), while fragment PI is inactive and fibronectin (FN) competes by about 30% only.
  • (14) By allelic exchange using cloned PI genes from FA19 (PIA) and MS11 (PIB) and a selectable marker introduced closely downstream of these genes, we constructed sets of isogenic gonococcal strains that differ only in their PI gene.
  • (15) Pulse-chase analysis of the labelling of these lipids indicates that PI and lysoPI rapidly equilibrate after the initial slow synthesis of PI.
  • (16) Sporozoites were inoculated into the allantoic cavity of 7-day-old Japanese quail embryos (Coturnix coturnix japonica), after which the infected embryos were incubated at 41 C. In the chorioallantoic membrane mature first generation schizonts, mature second generation schizonts, and gametes were detected at 48 hr postinoculation of sporozoites (PI), 84 hr PI, and 126 hr PI, respectively.
  • (17) Western immunoblot reactivity showed that the antisera collected from these infected horses at 4 to 5 weeks PI recognized some or all of the six major E. risticii component antigens (70, 55, 51, 44, 33, and 28 kilodaltons), all of which were apparent surface components.
  • (18) PCr and Pi returned to control levels during the first 30 minutes of reperfusion.
  • (19) Phosphatidic acid and CDP-DG, which are precursors to these phospholipids, also increased when PI synthesis was blocked by lack of exogenous inositol.
  • (20) With 18O-labeled Pi present, ATP hydrolysis accelerates 18O loss.