() A resinous substance flowing spontaneously from trees of Zanzibar, Madagascar, and South America (Trachylobium Hornemannianum, T. verrucosum, and Hymenaea Courbaril), and dug from earth where forests have stood in Africa; -- used chiefly in making varnishes.
Example Sentences:
(1) The preliminary treatment with a copal-ether varnish (Copalite) was of insignificant value.
(2) Forty molar and premolar teeth had non-retentive cavities prepared and restored with amalgam using (1) copal varnish (control), (2) a pin, (3) Amalgambond or (4) Panavia-Ex.
(3) The sealing abilities of three therapeutic varnishes were compared with that of a conventional copal varnish in vitro under Tytin silver amalgam restorations.
(4) Compared to R0, Copal overestimates SBP, but is efficient for DBP measurement.
(5) In this study an automated sphygmomanometer, the Copal UA-231, was evaluated on the basis of duplicate blood pressure measurements, one with this machine and one with a Hawksley random zero machine, taken on 1536 participants in a health survey.
(6) The addition of amine fluorides to a copal recin (Copalite) and a chlorine caoutchouc varnish (Pergut S-40) has been studied.
(7) Ten restorations were used for each of the following groups: 1) Amalgam alone; 2) Two layers of copal varnish and amalgam; 3) Vitrabond, amalgam; 4) Timeline, amalgam; 5) XR Ionomer, amalgam.
(8) In 50 teeth removed as a result of decay, cavities were prepaired on vestibular faces and were divided into 5 equal groups: Group A: with no caviti varnish; Group B: two coats of a linkin agent (Scotch Bond 3M); Group C: an amalgam liner base (Voco); Group D; two coats of copal varnish: Group E: an amalgam bond base (Carl San Remo, Germany).
(9) Class V cavities were prepared in the buccal surfaces of extracted human canine and premolar teeth and were treated in one of the following ways: no liner or varnish, a copal varnish, or an adhesive resin liner.
(10) The Copal UA-251 is a small automatic blood-pressure monitor, which relies on a piezo-electric microphone for detection of Korotkoff sounds.
(11) Group IA (n = 20) included 20 patients and compared Copal to intra-aortic measurement.
(12) Same results occur for IA-Copal values (SBP: r = 0.36, DBP: r = 0.30).
(13) A novel formulation of nicardipine (50% standard (short acting), 50% sustained release) was evaluated in mild hypertension in a double-blind, randomized, placebo-controlled study, using clinic measurements (Hawksley) augmented by home recorded blood pressures (Copal UA 251).
(14) Less microleakage was observed in resin-bonded amalgam restorations than in Copal varnish-lined or unlined restorations.
(15) The results demonstrated significant advantages of using a dentine adhesive as an interfacial sealer in order to reduce microleakage, compared to a conventional Copal varnish.
(16) Four groups were studied, including copal varnish, which was used as a control.
(17) Specimens were randomly assigned to four equal groups for liner placement: Group I--control, no liner used; Group II--copal varnish; Group III--4-META adhesive; Group IV--dentin bonding agent.
(18) Copals and damars are produced by trees belonging to the Araucariaceae, Caesalpiniaceae, Dipterocarpaceae and Burseraceae families.
(19) No significant improvement in the sealing properties of either the conventional or high-copper amalgam restorations was achieved after the 14-month period by the application of Copal varnish.
(20) The rate of marginal microleakage was not significantly affected by the application of a Copal varnish after this period.
Coral
Definition:
(n.) The hard parts or skeleton of various Anthozoa, and of a few Hydrozoa. Similar structures are also formed by some Bryozoa.
(n.) The ovaries of a cooked lobster; -- so called from their color.
(n.) A piece of coral, usually fitted with small bells and other appurtenances, used by children as a plaything.
Example Sentences:
(1) One of the main users is coastal planning organizations and conservation organizations that are working on coral reefs.
(2) What are the major threats that face the world's coral reefs and what more needs to be done to protect them?
(3) But the study’s co-author Mark Hay, a professor from the Georgia Institute of Technology, said the discovery here was that greater carbon concentrations led to “some algae producing more potent chemicals that suppress or kill corals more rapidly”, in some cases in just weeks.
(4) Facebook Twitter Pinterest Table corals provide an excellent hiding place for smaller fish.
(5) But the Guardian can now reveal Australia will also need to report on how it is dealing with the current bleaching, where almost a quarter of the coral on the reef has been killed.
(6) Guillermo Diaz-Pulido, a Griffith University associate professor, said the research was “a major step forward in understanding how seaweeds can harm corals and has important implications for comprehending the consequences of increased carbon dioxide emissions on the health of the Great Barrier Reef”.
(7) A new allele of white-coral (wco2) was isolated from Canton S after mutagenesis.
(8) The Infinity towel comes in colours more vibrant than one might expect from an eco-friendly product, including coral, green, blue and violet.
(9) Warming water will make it hard for many of the reef’s corals to survive, while the acidification of the oceans will hinder the ability of remaining corals to form their skeletons.
(10) Tyr190 may react with the coral toxin by nucleophilic addition at one of the carbons associated with an epoxide, and may form part of the alkylammonium-binding subsite of the acetylcholine recognition site.
(11) A recent study suggests that coral disease is doubled when dredging occurs near reefs, although supporters of the dredging have repeatedly insisted it can be done safely and that the Abbot Point sediment will be dumped around 40km from the nearest reef.
(12) This process hinders the ability of corals to produce the skeletal building blocks of reefs.
(13) We’re currently due to fly back on Friday afternoon and were not too concerned about it just yet.” Mohammed Sami, general manager of the Coral Sea Sensatori, one of Sharm el-Sheikh’s largest resorts, said the move had created uncertainty for holidaymakers.
(14) Incidentally, it’s the algae that give the coral its colour; and so when it’s ejected, the coral takes on a ghostly white hue, giving rise to the term “bleaching”.
(15) So are you optimistic then about the future survival of the world's coral reefs in the long term?
(16) Facebook Twitter Pinterest Coral bleaching on the Great Barrier Reef worse than for decades The photos were taken from around Lizard Island by Lyle Vale from Coral Watch at the University of Queensland .
(17) So we looked at the economic contribution of tourists to that area and compared it with the cost of interventions to improve water quality and coral reef health in that area.
(18) Freed of the need to wave their tentacles around to hunt for food, the coral can devote more energy to secreting the mineral calcium carbonate, from which they form a stony exoskeleton.
(19) It was the fourth mass bleaching to hit the reef in recorded history – all since 1998 – and coral scientists are alarmed the increasing regularity of these events gives stressed coral precious little chance to recover.
(20) In areas near the loaders, enough has accumulated to have a toxic effect on the corals that grow there.