What's the difference between groove and pulley?

Groove


Definition:

  • (n.) A furrow, channel, or long hollow, such as may be formed by cutting, molding, grinding, the wearing force of flowing water, or constant travel; a depressed way; a worn path; a rut.
  • (n.) Hence: The habitual course of life, work, or affairs; fixed routine.
  • (n.) A shaft or excavation.
  • (v. t.) To cut a groove or channel in; to form into channels or grooves; to furrow.

Example Sentences:

  • (1) The ligands bind at discrete sites in the minor groove of DNA, and analysis on DNA sequencing gels show pronounced protection at the ligand binding sites, as well as more generalized protection.
  • (2) Recent reports have indicated the usefulness of nuclear grooves (clefts or notches) as an additional criterion for the diagnosis of papillary thyroid carcinoma in fine needle aspirates; most of these studies were carried out on alcohol-fixed material stained with the Papanicolaou stain or with hematoxylin and eosin, which yield good nuclear details.
  • (3) Intermolecular contacts occur in both oligomers in the minor groove: in the B form through twisted guanine-guanine hydrogen bonding, and in the Z form through base-base stacking and the water network.
  • (4) The nogalose and aminoglucose sugars lie in the minor and major grooves, respectively, of the distorted B-DNA double helix.
  • (5) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
  • (6) These results strongly indicate that metallobleomycin binds in the minor groove of B-DNA and that the 2-amino group of guanine adjacent to the 5' side of the cleaved pyrimidine base is one key element of the specific 5' G-C or G-T recognition by the bleomycin-metal complex.
  • (7) As a basis for the discussion a possible structure for the DNA complex of the phenylated neutral red is considered in which the extra phenyl ring at N-5 of the phenazinium system, protrudes into the large groove of the DNA helix while the tricyclic part of the ligand is inserted between the DNA base-pairs.
  • (8) A high intensity of the reactions was observed in certain cells of the neural groove in 24-hours' embryos and in the neural tube of 48-hours' embryos.
  • (9) Recent STM studies of calf thymus DNA and poly(rA).poly(rU) have shown that the helical pitch and periodic alternation of major and minor grooves can be visualized and reliably measured.
  • (10) In the absence of boxes or grooves, pins markedly enhanced both retention and resistance.
  • (11) Therefore in artificial knee replacement a lateral tilt of the patella sliding groove should not be propagated as 'physiological'.
  • (12) Many antitumor drugs, and many carcinogens, act by binding within the minor groove of double-helical DNA, interfering with both replication and transcription.
  • (13) This instrument, a modification of a corneal trephine, provides a neat, smooth groove of adjustable depth.
  • (14) and the fluid ejected from the ejaculatory groove region (about 0.2 ml.).
  • (15) 3) The significance of minor groove Mtase-DNA interactions to specificity is confirmed.
  • (16) (v) The bis-benzimidazole drug Hoechst-33258, which binds in the minor groove of B-DNA, exhibits very little fluorescence in the presence of the ps hairpins but a normal, enhanced emission with the aps oligonucleotides.
  • (17) We have studied the time-resolved and the steady-state fluorescence of the DNA groove binders 4',6-diamidino-2-phenylindole (DAPI) and Hoechst 33258 with the double stranded DNAs poly(dA-dU) and poly(dI-dC) and their halogenated analogs, poly(dA-I5dU) and poly(dI-Br5dC).
  • (18) The complexation-induced chemical shifts and NOE cross peaks in the NOESY map of the 1:1 complex of lexitropsin (1) and d-[CGCAATTGCG]2 reveal that the thiazole ring of the lexitropsin (1) intercalates between dA4.A5 bases and the rest of the ligand resides in the minor groove of the AT rich core of decamer, thus occupying the 5'-AATT sequence on the DNA.
  • (19) All cases had true hypertelorism and a median nasal groove with absence of the nasal tip.
  • (20) Distamycin, Hoechst 33258, and DAPI were used as agents capable of AT-specific binding in the minor groove of DNA while producing no profound long-range distortion of DNA structure.

Pulley


Definition:

  • (v. t.) A wheel with a broad rim, or grooved rim, for transmitting power from, or imparting power to, the different parts of machinery, or for changing the direction of motion, by means of a belt, cord, rope, or chain.
  • (b. t.) To raise or lift by means of a pulley.

Example Sentences:

  • (1) The model consists of electrically stimulating the lower leg muscles to contract against a weighted pulley bar.
  • (2) The traumatic agent is the sudden extension while the finger is holding an object and the flexor digitorum profundus is strongly contracted: the tendon retracts and the stump can be found either at the distal pulley, at the bifurcation of the superficialis tendon, or in the palm of the hand.
  • (3) Nine tendons were repaired with each of four suture patterns: single-locking loop, double-locking loop, triple-locking loop, or three-loop pulley.
  • (4) There was no evidence of a synovial cell layer on the surface of the A1 pulleys in either normal or trigger digits.
  • (5) The "pulley effect" of the skin and soft tissue as a supplement to the fibro-osseous pulleys in reducing tendon bow-stringing was also noted.
  • (6) Therefore, a method was developed to reconstruct the fibro-osseous pulleys with polytetrafluoroethylene (PTFE) membrane.
  • (7) The pulleys were studied in specific configurations to determine their effectiveness in transforming tendon excursion into finger flexion.
  • (8) Pulley advancement increased the tendon excursion required to flex this joint and thus the mechanical advantage at this joint, but only when the joint was partly flexed.
  • (9) It is not yet known whether it has sufficient breaking strength to meet the functional demands of human pulleys.
  • (10) Suddenly, we were back in the age of ropes and pulleys and brute strength to deliver her into the hands of the mechanised world.
  • (11) Pulley positions are relatively constant throughout postnatal development, with the gross anatomic characteristics correlating closely to those of the adult hand.
  • (12) Some rigged up pulley systems to hoist shopping to their windows, where the glass was cracked and fixed with tape.
  • (13) The whole flexor apparatus was resected and a single digital pulley (A 2) was reconstructed, using segments of the animals own deep flexor tendon.
  • (14) Suggested minimum requirements for the breaking strength of artificial implant pulleys may be made based on these studies.
  • (15) Flexor pulley restoration and the importance of maintaining strong pulley support are discussed and surgical techniques including those for flexor tendon grafting and reconstruction are described.
  • (16) The transverse fibers of the palmar aponeurosis are attached by vertical septa to the underlying transverse metacarpal ligament and thus form a pulley over the flexor tendons.
  • (17) The synthetic Nitex pulley appears to have the potential to function as an effective fibro-osseous pulley replacement.
  • (18) The triple-locking loop and three-loop pulley patterns were close in strength and only the triple-locking loop was stronger than the double-locking loop.
  • (19) The long-term results of the key grip procedure (tenodesis of the flexor pollicis longus tendon to the radius, release of the A1 pulley, and percutaneous pin fixation of the interphalangeal joint of the thumb) were evaluated in 10 tetraplegic patients.
  • (20) Satisfactory grip functions were restored for all patients after the secondary pulley reconstruction.