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  1. 2141
    “…The diversification of crown cetacean lineages (i.e., crown Odontoceti and crown Mysticeti) occurred throughout the Oligocene, but it remains an ongoing challenge to resolve the phylogenetic pattern of their origins, especially with respect to stem lineages. …”
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    Arktocara yakataga, a new fossil odontocete (Mammalia, Cetacea) from the Oligocene of Alaska and the antiquity of Platanistoidea
  2. 2142
    “…Remote sensing is revolutionizing the way we study forests, and recent technological advances mean we are now able – for the first time – to identify and measure the crown dimensions of individual trees from airborne imagery. …”
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    Allometric equations for integrating remote sensing imagery into forest monitoring programmes
  3. 2143
    “…Further reaction of (4−BzhH2)BoxCH(2) with three equivalents KH and two equivalents 18‐crown‐6 yielded polymeric [{(THF)(2)K@(18‐crown‐6)}{K@(18‐crown‐6)K((4‐Bzh)BoxCH)}](n) (n→∞) (12) containing a trianionic ligand. …”
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    Bis(4‐benzhydryl‐benzoxazol‐2‐yl)methane – from a Bulky NacNac Alternative to a Trianion in Alkali Metal Complexes
  4. 2144
    “…Methods: several crown materials were considered for modeling six types of crown rehabilitation: full metal (MET), metal-ceramic (MCER), metal-composite (MCOM), peek-composite (PKCOM), carbon fiber-composite (FCOM), and carbon fiber-ceramic (FCCER). …”
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    Bone Stress Evaluation with and without Cortical Bone Using Several Dental Restorative Materials Subjected to Impact Load: A Fully 3D Transient Finite-Element Study
  5. 2145
    “…For restorations on teeth involving invasion of the supracrestal tissue attachment (biological width), as well as for lack of ferrule effect, crown lengthening is required for long-term periodontal health and success of the restoration. …”
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    Clinical Considerations in Orthodontically Forced Eruption for Restorative Purposes
  6. 2146
    “…In this study, we identified that the LBD (LATERAL ORGAN BOUNDARIES DOMAIN) gene TaMOR (MORE ROOT in wheat) determines wheat crown root initiation. The mor mutants exhibited less or even no crown root, dwarfism, less grain number and lodging caused by few roots. …”
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    TaMOR is essential for root initiation and improvement of root system architecture in wheat
  7. 2147
    “…Objectives To validate recent guidance changes by establishing the performance of cut-off values for embryo crown-rump length and mean gestational sac diameter to diagnose miscarriage with high levels of certainty. …”
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    Defining safe criteria to diagnose miscarriage: prospective observational multicentre study
  8. 2148
    “…The failure load values of the short AWH crown and occlusal distal veneer were significantly higher than that of occlusal veneer and full crown (P<0.05). …”
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    Impact of different axial wall designs on the fracture strength and stress distribution of ceramic restorations in mandibular first molar
  9. 2149
    “…In the title compound, C(46)H(50)O(12)·2CH(2)Cl(2), each dual 20-crown-6 unit crystallizes with two di­chloro­methane solvent mol­ecules. …”
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    2,8,15,18,21,24,31,37,44,47,50,53-Dodeca­oxahepta­cyclo­[52.4.0.0(4,35).0(6,33).0(9,14).0(25,30).0(38,43)]octa­penta­conta-1(54),4,6(33),9(14),10,12,25(30),26,28,34,38(43),39,41,55,57-penta­deca­ene di­chloro­methane disolvate
  10. 2150
    “…The solid‐state structures of [K(18‐crown‐6)][P(CF(3))(4)] and [K(18‐crown‐6)][P(CF(3))(3)F] are ascertained by single crystal X‐ray crystallography. …”
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    Synthesis, Reactivity and Structural Properties of Trifluoromethylphosphoranides
  11. 2151
    “…The rotational flexibility of ferrocene is achieved using combinations of ferrocene-tethered ammonium and 30-membered ring dibenzo-crown ether. By contrast, ferrocene was locked in the complex with an 18-membered ring dibenzo-crown ether and CH(2)Cl(2). …”
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    Ring rotation of ferrocene in interlocked molecules in single crystals
  12. 2152
    “…Overweight (BMI: 25.0–29.9 kg/m(2)) and obese (BMI ≥ 30.0 kg/m(2)) patients have 3.2 and 6.9 times higher odds ratio of crown-like structures respectively, compared with normal weight patients. …”
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    Inflammation of mammary adipose tissue occurs in overweight and obese patients exhibiting early-stage breast cancer
  13. 2153
    “…These changes in light conditions were largely driven by the successional changes in forest structure, as basal area strongly determined the height where most light is absorbed, whereas crown area, and to a lesser extent crown length, determined light distribution.…”
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    Forest structure drives changes in light heterogeneity during tropical secondary forest succession
  14. 2154
    “…Full-length transcriptomic and metabolomic analyses were performed on two asparagus genotypes: ‘jx1502’ (a salt-tolerant genotype) and ‘gold crown’ (a salt-sensitive genotype). Compared with the distilled water treatment (control), 877 and 1610 differentially expressed genes (DEGs) were identified in ‘jx1502’ and ‘gold crown’ under salt stress treatment, respectively, and 135 and 73 differentially accumulated metabolites (DAMs) were identified in ‘jx1502’ and ‘gold crown’ under salt stress treatment, respectively. …”
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    Combined full-length transcriptomic and metabolomic analysis reveals the regulatory mechanisms of adaptation to salt stress in asparagus
  15. 2155
    “…OBJECTIVE: The reattachment of the crown fragment to a fractured tooth is a conservative treatment that should be considered for young patients with crown-root fractures to the maxillary incisors if the subgingival fracture can be exposed to provide isolation. …”
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    Reattachment of fractured maxillary incisors using fiber-reinforced post: Two case reports
  16. 2156
    “…Fractured anterior teeth are usually treated with conventional post and core and crown techniques, after being treated endodontically. …”
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    Traumatic Dental Injury—An Enigma for Adolescents: A Series of Case Reports
  17. 2157
    “…Several techniques have been proposed for clinical crown lengthening procedures. Crown lengthening in esthetic zone can be classified in two basic types: Restorative and non-restorative cases after the crown lengthening is executed. …”
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    Atraumatic surgical extrusion using periotome in esthetic zone: A case series
  18. 2158
    “…N,N'-bis(bromobenzyl) and N,N'-bis(halopyridinyl) derivatives of diaza-12-crown-4, diaza-15-crown-5 and diaza-18-crown-6 ethers were synthesized in high yields. …”
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    Pd-Catalyzed Amination in the Synthesis of a New Family of Macropolycyclic Compounds Comprising Diazacrown Ether Moieties
  19. 2159
    “…A complicated crown fracture in a permanent incisor is one of the most difficult traumatic dental injuries to deal with. …”
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    A Partial Pulpotomy in Traumatized Permanent Incisors With Pulp Exposure
  20. 2160
    “…Nickel-titanium (NiTi) rotary file system can be used in single length technique (simultaneous technique) without early coronal enlargement, as well as in crown-down method. The purpose of this in vitro study was to compare single length with crown-down methods’ shaping ability using Mtwo NiTi files. …”
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    Comparison of Two Canal Preparation Techniques Using Mtwo Rotary Instruments
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