(n.) An aquatic plant of the genus Sagittaria, esp. S. sagittifolia, -- named from the shape of the leaves.
Example Sentences:
(1) Microfilaments in the myoid cells of the peritubular tissue in the mouse, swine and human testis bind heavy meromyosin (HMM) and form arrowhead complexes.
(2) These variants, which yielded a robust illusion, included dihedral angles in place of the arrowheads of the classical pattern.
(3) Both intact platelet myosin and myosin head form typical arrowhead-shaped complexes with either platelet or muscle F-actin.
(4) The arrowhead formation is inhibited when the tissues are treated with HMM in the presence of ATP.
(5) Rigorous control of fixative pH largely prevented these problems and permitted recognition of the fact that in Sarcophaga flight muscle, as in Lethocerus muscle in rigor, the S1 'heads' of crossbridges attach to the thin filaments in the expected 'arrowhead' configuration.
(6) Heavy meromyosin from rabbit muscle combines with oriented Nitella and Chara actin in vitro to form arrowhead structures directed opposite to the cytoplasmic flow in the living plant cell.
(7) By the modified HMM decoration method, labeled actin filaments were readily detected in the prefixed endothelial cells, because of the distinctive arrowhead-like appearance, observed beneath the basal plasma membrane facing the trabecular collagen sheet.
(8) Actin filaments are found in amebas (1, 12, 13) which react with vertebrate heavy meromyosin (HMM), forming arrowhead complexes as vertebrate actin (3, 9), and are prominent within the ectoplasmic tube where some of them are attached to the plasmalemma (1, 12).
(9) Actin filaments which attach to membranes display a clear, uniform polarity, with the S-1 arrowheads pointing away from the plasma membrane, while those which comprise the stress fibers of myoblasts and CHO cells have antiparallel polarities.
(10) "We always find deposits of mega-fauna and, on occasion, we find arrowheads next to them," said Rincón.
(11) The subunit is distinctly polar with a massive "base" pointing towards the "barbed" end of the filament, and a slender "tip" defining its "pointed" end (i.e., relative to the "arrowhead" pattern revealed after stoichiometric decoration of the filaments with myosin subfragment 1).
(12) The answer to why these giant creatures disappeared could rest on one of his team's recent discoveries: arrowheads.
(13) The authors demonstrate a large-scale, computerized simulation model to estimate the economic impacts of the regional health services industry on a seven-county region in Northeast Minnesota, known as the Arrowhead Region.
(14) Training in advanced cardiac life support and defibrillation and community programs in cardiopulmonary resuscitation (CPR) had limited success in resuscitating patients with cardiac arrest in the Arrowhead region of Minnesota.
(15) Since these filaments bind rabbit myosin subfrafment-1 to form arrowhead complexes, we conclude that they contain actin.
(16) In addition to the arrowheads, thin whiskers, 700-1200 A in length and 20 A in width, attached to the arm of the arrowheads have been demonstrated.
(17) Myosin-II binds to actin filaments, forming periodic arrowhead-shaped complexes, but its Mg2+ ATPase activity is activated only 50% or less by actin.
(18) Microfilament polarity is shown by S1 arrowheads pointing away from the microvillous tip to the cell body.
(19) While city-dwellers and tourists might not think twice before knocking back an Arrowhead – Nestlé’s premier California still water brand – or a Crystal Geyser, residents near the affected springs and watersheds tend to be more vocal, because every drop Nestlé takes is one drop less for their own use and for the local flora and fauna.
(20) In the range of micro = 0.3-0.1, the LMM whiskers merge into smooth filaments which are arranged alternatingly with arrowhead-bearing filaments.
Bodkin
Definition:
(n.) A dagger.
(n.) An implement of steel, bone, ivory, etc., with a sharp point, for making holes by piercing; a /tiletto; an eyeleteer.
(n.) A sharp tool, like an awl, used for picking /ut letters from a column or page in making corrections.
(n.) A kind of needle with a large eye and a blunt point, for drawing tape, ribbon, etc., through a loop or a hem; a tape needle.
(n.) A kind of pin used by women to fasten the hair.
(n.) See Baudekin.
Example Sentences:
(1) A sign which appears to be almost specific for encasement, the bullet and bodkin configuration, is described here.