What's the difference between centre and centroid?

Centre


Definition:

  • (v. i.) To be placed in a center; to be central.
  • (v. i.) To be collected to a point; to be concentrated; to rest on, or gather about, as a center.
  • (v. t.) To place or fix in the center or on a central point.
  • (v. t.) To collect to a point; to concentrate.
  • (v. t.) To form a recess or indentation for the reception of a center.
  • (n. & v.) See Center.

Example Sentences:

  • (1) We attribute this in part to early diagnosis by computed tomography (CT), but a contributory factor may be earlier referrals from country centres to a paediatric trauma centre and rapid transfer, by air or road, by medical retrieval teams.
  • (2) If there is a will to use primary Care centres for effective preventive action in the population as a whole, motivation of the professionals involved and organisational changes will be necessary so as not to perpetuate the law of inverse care.
  • (3) Businesses fleeing Brexit will head to New York not EU, warns LSE chief Read more Amid attempts by Frankfurt, Paris and Dublin to catch possible fallout from London, Sir Jon Cunliffe said it was highly unlikely that any EU centre could replicate the services offered by the UK’s financial services industry.
  • (4) Undaunted by the sickening swell of the ocean and wrapped up against the chilly wind, Straneo, of Woods Hole Oceanographic Institution, one of the world's leading oceanographic research centres, continues to take measurements from the waters as the long Arctic dusk falls.
  • (5) A number of asylum seekers detained in the family camp on Nauru have begun peaceful protests over conditions at the centre.
  • (6) Salmonella Centre of Paris confirmed the antigenic structure and agreed with this designation.
  • (7) Gove, who touched on no fewer than 11 policy areas, made his remarks in the annual Keith Joseph memorial lecture organised by the Centre for Policy Studies, the Thatcherite thinktank that was the intellectual powerhouse behind her government.
  • (8) Nick Robins, head of the Climate Change Centre at HSBC, said: "If you think about low-carbon energy only in terms of carbon, then things look tough [in terms of not using coal].
  • (9) We report on the clinical studies of bladder tumours carried out at the centre for oncology in the Aarhus area and describe the experience and results of the past three decades.
  • (10) Much has been claimed about the source of its support: at one extreme, it is said to divide the right-of-centre vote and crucify the Conservatives .
  • (11) The ruling centre-right coalition government of Angela Merkel was dealt a blow by voters in a critical regional election on Sunday after the centre-left opposition secured a wafer-thin victory, setting the scene for a tension-filled national election in the autumn when everything will be up for grabs.
  • (12) Various immunoassays have been introduced into, and evaluated at, the Amani Medical Centre in north-east Tanzania.
  • (13) At its centre was the Holocaust, the industrialised slaughter of 6 million Jews by the Nazis: an attempt at the annihilation of an entire people.
  • (14) Lofgren complains that " the crackpot outliers of two decades ago have become the vital centre today ".
  • (15) Guy Jobbins, a Cairo-based British water scientist who heads Canada's International Development Research Centre climate change adaptation programme for Africa, says understanding of the issue has rocketed in the past few years.
  • (16) The results of this study are compared with the results of an earlier study which was completed before the Community Care Centre was established.
  • (17) Photograph: David Grayson David Grayson, director, The Doughty Centre for Corporate Responsibility, Cranfield University David became professor of corporate responsibility and director of the Doughty Centre for Corporate Responsibility at Cranfield School of Management, in April 2007, after a 30 year career as a social entrepreneur and campaigner for responsible business, diversity, and small business development.
  • (18) At discharge, 58% were living with their families, 23% were living in group homes, 12% were in supervised apartments and 5% were in an alternative rehabilitation centre.
  • (19) Stray bottles were thrown over the barriers towards officers to cheers and chants of: “Shame on you, we’re human too.” The Met deployed what it described as a “significant policing operation”, including drafting in thousands of extra officers to tackle expected unrest, after previous events ended in arrests and clashes with police across the centre of the capital.
  • (20) Four centres contributed a total of 466 patients to a study comparing the efficacy of oral amoxycillin with that of probenecid and intramuscular ceftizoxime.

Centroid


Definition:

  • (n.) The center of mass, inertia, or gravity of a body or system of bodies.

Example Sentences:

  • (1) Respiratory muscle endurance at a given level of load was assessed from the time of exhaustion and from the time course of the change in the power spectrum (centroid frequency) of the diaphragm electromyogram (EMG).
  • (2) Diaphragmatic fatigue has been reported to be associated with a decrease in the centroid frequency (Fc) of the electromyogram derived through frequency spectral analysis.
  • (3) Compared to pre-march values, post-march marksmanship accuracy decreased 26% for number of target hits and 33% for distance from the centroid of the target.
  • (4) Included in this paper are an algorithm for centroid detection, Gaussian fitting algorithms, and an algorithm for the extraction of data out of the cellular array machine.
  • (5) N1 and P2 to the last preceding frequent stimulus, the rare (attended target) stimulus, and the following two frequent stimuli were evaluated using 6 reference-independent measures: latency (time of maximal potential range between any two locations), amplitude of maximal potential range, global field power, vertex (Cz) current source density, location of extreme potential, and location of potential centroid.
  • (6) Positively charged or delta(+) amino groups of lysine, arginine, asparagine, glutamine and histidine are preferentially located within 6 A of the ring centroids of phenylalanine, tyrosine and tryptophan, where they make van der Waals' contact with the delta(-) pi-electrons and avoid the delta(+) ring edge.
  • (7) Six reference systems from the epicardial and endocardial centers of geometry (centroids) in a fixed or a floating position were explored.
  • (8) Minute ventilation (VE), arterial blood gases, diaphragmatic electromyogram (EMG) activity, centroid frequency (Fc) and peak inspiratory airway pressures (Paw) were measured in five unanesthetized tracheostomized infant monkeys during various intensities of inspiratory resistive loaded breathing (IRL) until either 1) ventilatory failure occurred (failed trial) or 2) normocapnia was sustained for 1 h (successful trial).
  • (9) Frame-by-frame motional analysis of the ventricular perimeter relative to its centroid of mass allowed more precise characterization of regional dysfunction.
  • (10) Lamellipod extension leads to a shift of the cell's centroid towards the wound.
  • (11) Moments and products of inertia about the segment mass centroid were calculated and the principal moments and axes determined from the ellipsoid of inertia.
  • (12) The centroids were shifted to the left relative to the coordinate reference grid indicating a left side expansion.
  • (13) Nonlinear expressions are derived for the coordinates of the centroids in terms of the geometrical parameters which include: the two-dimensional coordinates of the projection of the center of rotation onto the detector image plane; the focal length; the distance from the focal point to the center of rotation; and the spatial coordinates of the point source itself.
  • (14) Radius proportions to the mass centroid and radius of gyration proportions were also plotted and showed smaller but consistent changes with respect to age.
  • (15) Under microscopic observation neutrophils were videotaped, their images digitized, and the x and y coordinates of the cell centroids captured at 30 s intervals for 15 min and subsequently analyzed.
  • (16) Discrimination was possible by Mahalanobis' generalized distance between centroids of groups.
  • (17) The total centroid tended towards acceleration, while the centroid deviation increased significantly.
  • (18) Vagotomy abolished the difference, inducing a change in the power spectrum without modifying the centroid frequency (Cf).
  • (19) Very different spectra of rigor fibers were obtained with the fiber oriented parallel and perpendicular to the magnetic field, showing that the centroid of each cone had the same orientation for all myosin heads, making an angle of approximately 74 degrees to the fiber axis.
  • (20) A suite of programs is described here for performing various types of centroid analysis ranging from a simple analysis of facial and cranial segments to template matching of cyclical curves.

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