What's the difference between centrifugal and centripetal?
Centrifugal
Definition:
(a.) Tending, or causing, to recede from the center.
(a.) Expanding first at the summit, and later at the base, as a flower cluster.
(a.) Having the radicle turned toward the sides of the fruit, as some embryos.
(n.) A centrifugal machine.
Example Sentences:
(1) The samples are first disrupted by sonication and the insoluble proteins concentrated by high-speed centrifugation.
(2) Plaque size, appearance, and number were influenced by diluent, incubation temperature after nutrient overlay, centrifugation of inoculated tissue cultures, and number of host cells planted initially in each flask.
(3) Cost-effective immunoassays for the detection of amphetamines, benzodiazepines, and methadone in urine have been developed using Syva EMIT reagents and a Cobas Bio centrifugal analyser.
(4) Analysis of the product by equilibrium density centrifugation and processive hydrolysis with snake venom phosphodiesterase suggested that the noncomplementary nucleotides were present in phosphodiester linkage.
(5) Leukocytes were isolated by centrifugation from milk collected at postinjection hour 16.
(6) Interfering macromolecular serum components were left outside the capsule during the centrifugation or forced dialysis.
(7) A crude extract of Brucella melitensis was obtained by sonication, centrifugation and dialysis, and analyzed by quantitative immunoelectrophoresis.
(8) Here we compare this revised technique to the classical sucrose density centrifugation procedure.
(9) To facilitate detoxification, the centrifuge is employed to provide plasma rich in toxins, but void of potentially interfering blood components such as platelets and whole blood cells.
(10) An isolation technique involving filtration and discontinuous density gradient centrifugation was utilized for obtaining Giardia lamblia cysts from human feces.
(11) The Iranians have accused the Israelis and the US of designing and deploying Stuxnet, which set some of their centrifuges spinning out of control.
(12) The method is based upon osmotic swelling, sonication and centrifugation in sucrose.
(13) Nerve endings (synaptosomes) were isolated from homogenized rat brain corpora striata following centrifugation on discontinuous sucrose gradients.
(14) In the absence of n-butyrate, only a small percentage (approximately 4%) of the total beta A chromatin is in a soluble chromatin fraction following micrococcal nuclease digestion and centrifugation.
(15) Conventional procedures for the isolation of uncontaminated polysomal RNAs which rely on sucrose density centrifugations are laborious and unsuitable for large scale isolations.
(16) A new closed system for counterflow centrifugation (elutriation) is described.
(17) A new centrifugal pump (Sarns), originally designed for ventricular assist, was successfully used in two patients during repair of traumatic pseudoaneurysm of the descending thoracic aorta.
(18) A microsomal preparation containing labeled endocytic vesicles was prepared by cell scraping, homogenization, and differential centrifugation.
(19) A cost-effective immunoassay for the detection of opiates in urine has been developed using commercial reagents on a centrifugal analyser.
(20) The report says this tactic has helped the west uncover at least one of Iran's secret nuclear sites and, according to official statements by the Iranians, has caused enrichment centrifuges to break.
Centripetal
Definition:
(a.) Tending, or causing, to approach the center.
(a.) Expanding first at the base of the inflorescence, and proceeding in order towards the summit.
(a.) Having the radicle turned toward the axis of the fruit, as some embryos.
(a.) Progressing by changes from the exterior of a thing toward its center; as, the centripetal calcification of a bone.
Example Sentences:
(1) Abducting saccades, which were slightly hypometric, displayed a marked postsaccadic centripetal drift.
(2) The study shows 3 groups of AN families, centripetal (53%), centrifugal (24%) and mixed (24%), supporting a hypothesis that AN families are a heterogeneous group.
(3) In these subjects, the centripetal reorientation of the platelet granules, which may be early structural changes of the release reaction, failed to occur.
(4) The direction of the arterial blood flow in the mature animal is predominantly centrifugal, while the venous drainage is centripetal.
(5) The responses obtained from circular muscle originating from either the centripetal or centrifugal gyri of the ascending colon did not differ significantly.
(6) The regenerative phase consists of centripetal cellular regeneration, cellular repair and some residual damage.
(7) The mechanisms involved in the selective degeneration of centrifugal and centripetal optic fibers is discussed.
(8) In addition, they suggest that migration is an important aspect of the regeneration response in the free graft system and permits the myogenic population to contribute en masse to the centripetal wave of regeneration from the time it is initiated at the muscle periphery.
(9) In both cases the spreading involves the peripheral actin cortex and is accompanied by a continual centripetal movement of surface components--a "membrane flow"--which continues even after spreading is completed.
(10) The concept of centripetal and centrifugal modes constructively links the illness life cycle to the individual and family life cycles.
(11) Four images were retained, and were graded 0 (absence) or 1 (presence): hypodensity before injection of the contrast material, arteriolar halo after injection, progressive centripetal filling and late hyperdensity.
(12) Certain head and neck malignancies tend to invade branches of the cranial nerves and progress centripetally.
(13) These data exhibit a highly negative selection intensity and selective mortality at the lower and higher birth weights than at intermediate weights, an example of stabilizing or centripetal natural selection.
(14) Activated regions of caged resorufin (CR)-labeled actin in lamellipodia of IMR 90 and MC7 3T3 fibroblasts were observed to move centripetally over time.
(15) In immunolight microscopy, NFPs (neurofilament proteins) are confined to the centripetal domain.
(16) On the other hand, dendrites of starburst amacrine cells process information electrotonically with a bias towards the centrifugal direction and for a restricted range of membrane resistance values the voltage attenuation in the centripetal direction suggests that the action of these dendrites can be confined locally.
(17) In contrast the negativity preceded centripetal saccades by only 500 msec, and its peak amplitude was smaller (4.6 microV).
(18) The boot can exert continuous centripetal pressure on both sides of the calcaneus to control transverse displacement and to maintain the normal height of the heel.
(19) Muscularization appears to occur in a centripetal direction and is apparent in the caudate at approximately 30 weeks' gestation.
(20) There was one localized area of apparent centripetal accumulation of contrast medium.