“…BACKGROUND: The crown-of-thorns starfish, Acanthaster planci (L.), has been blamed for coral mortality in a large number of coral reef systems situated in the Indo-Pacific region. …”
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“…The diagnosis of TO and the removal of an aspirated crown by FOB are discussed.…”
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“…The title complex, bis­(μ-benzene-18-crown-6)-3κ(6) O:4κO;4κ(6) O:3κO-bis­(benzene-18-crown-6)-1κ(6) O,6κ(6) O-tetra-μ-thiocyanato-1:2κ(2) S:N;2:3κ(2) N:S;4:5κ(2) S:N;5:6κ(2) N:S-dithio­cyanato-2κN,5κN-2,5-dicopper(I)-1,3,4,6-tetra­potassium(I), [K(4)Cu(2)(NCS)(6)(C(16)H(24)O(6))(4)] or {[K(C(16)H(24)O(6))](4)[Cu(NCS)(3)](2)}, consists of four [K(benzene-18-crown-6)](+) cations and two [Cu(NCS)(3)](2−) anions, forming a dimeric structure with site symmetry [Image: see text]. …”
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“…The title compound, [Sr(C(14)H(20)O(5))(2)](I(3))(2), obtained by slow evaporation of an ethanol/dichloro­methane solution (1:1) of SrCl(2), benzo-15-crown-5 and I(2), is built of sandwich-like [Sr(benzo-15-crown-5)(2)](2+) cations and isolated linear I(3) (−) anions which are arranged in alternating layers parallel to (010). …”
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“…The K(I) ion is coordinated by six O atoms of the crown ether and two bridging Cl atoms. The K(I) ion is displaced by 0.756 (2) Å from the mean plane of the six O atoms of the crown ether. …”
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“…In the title compound, [CuBr(2)(H(2)O)(2)]·C(12)H(24)O(6)·2H(2)O, the Cu(II) atom, which is situated on an inversion centre and has a slightly distorted square-planar geometry, and the two coordinated water mol­ecules are linked to the 18-crown-6 macrocycles by O—H⋯O hydrogen bonds. The water mol­ecule of crystallization further links the metal complex and the crown ether macrocycles into a chain along the c axis.…”
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“…The asymmetric unit of the title compound, H(3)O(+)·ClO(4) (−)·C(20)H(24)O(6), contains two mol­ecules/ions of each species. Both dibenzo-18-crown-6 mol­ecules have a complexed hydro­nium ion inside their cavity with O—H⋯O and O—H⋯(O,O) links between the two species. …”
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“…BACKGROUND: The design of the tooth preparation and the cementing medium are important consid-erations in the retention of crowns and fixed partial dentures. The purpose of this invitro study was to determine the effect of axial groove on the retention of complete cast metal crowns using two resin luting cements. …”
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“…This case report explains about an innovative treatment strategy for the management of damaged anterior teeth with reduced incisal clearance by means of a single-unit all-ceramic post–core–crown zirconia ceramic restoration fabricated by Computer-aided designing and computer-aided manufacturing (CAD/CAM) technology. …”
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“…We presented a method for management of one of the two replanted teeth that showed failure, using the natural crown as pontic in a fixed semi-permanent bridge until a more definitive prosthesis can be fabricated at a later age for better patient compliance.…”
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“…During a recent survey in Tunisia, a number of Calonectria spp. were isolated from tissues of ornamental plants showing symptoms of leaf spot, crown and root rot. The aim of this study was to identify these Calonectria spp. using morphological and DNA sequence comparisons. …”
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“…In the title compound, C(3)H(12)N(2) (2+)·2ClO(4) (−)·2C(12)H(24)O(6), the central C atom of the propane-1,3-diammonium cation is located on a twofold rotation axis and the two terminal –NH(3) groups insert into the crown rings through N—H⋯O hydrogen bonding, resulting in the formation of a 1:2 supra­molecular [(C(3)H(12)N(2))·(C(12)H(24)O(6))(2)](+) complex. …”
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“…However, numerous empirical works show that variability of crown structure rather than constancy is essential for a tree’s success in coping with crowding. …”
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“…As significant difference in twins growth has a very important effect on pregnancy and perinatal complications, this study aimed to evaluate crown-rump length discordance (ΔCRL) in the first trimester of pregnancy and its correlation with perinatal complications. …”
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“…Desensitizing agents were applied before cementation of crowns except for control group. Under tensional force the crowns were removed using an automated universal testing machine. …”
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“…Provisional crowns were polymerized at room temperature (Group I direct technique, on dental stone cast; Group I indirect technique crowns) and at different water temperatures (Group II direct technique crowns). …”
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“…This case report describes the multidisciplinary management of subgingival horizontal crown-root fracture of an immature permanent maxillary central incisor in a 10-year-old boy. …”
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“…Presented here is a report of two cases of crown fracture managed by reattachment procedures.…”
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