Results 91 to 100 of about 227,665 (340)

Lichens from Mount Kinabalu [PDF]

open access: yes, 1993
286 species of lichenized fungi on Mount Kinabalu are recorded by field survey and investigation of literature records and herbarium material. An annotated catalogue is presented, together with habitat notes, and a list of collectors. The summit area has
Sipman, J.J.M.
core  

Higher‐Level Structural Classification of Pseudomonas Cyclic Lipopeptides through Their Bioactive Conformation

open access: yesAdvanced Science, EarlyView.
Solution structures of a series of cyclic lipodepsipeptides from Pseudomonas reveal that these specialized metabolites adopt left‐handed alpha helical conformations of only two types, being either ‘stapled’ or ‘catch‐pole’ helix. The particular modular distribution of the biosynthetic gene clusters is found to determine the extent of their conserved ...
Benjámin Kovács   +9 more
wiley   +1 more source

Comparative assessment of clinical performance and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns: A split-mouth pilot study

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry
Aim: To evaluate and compare the clinical efficiency and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns (ZCs).
Apoorva Goswami   +5 more
doaj   +1 more source

Tooth characters of protohippine horses with special reference to species from the Merychippus zone, California [PDF]

open access: yes, 1934
The critical review of equine tooth characters attempted in this paper is the result of a study of the protohippine horses obtained from the Merychippus Zone of the north Coalinga district, California.
Bode, Francis D.
core  

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

open access: yesAdvanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal   +13 more
wiley   +1 more source

Comparative Evaluation of Fracture Toughness and Marginal Adaptation of PEEK and Cast Metal Crowns for Restoring Posterior Teeth with Endocrown and Richmond Crown: An In Vitro Study [PDF]

open access: yesInternational Journal of Prosthodontics and Restorative Dentistry
Purpose: The purpose of this study was to evaluate and compare the fracture toughness and marginal adaptation of polyether ether ketone (PEEK) and cast metal crowns for restoring posterior teeth using the endocrown and Richmond crown techniques ...
Charnpreet Singh   +4 more
doaj   +1 more source

Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery

open access: yesAdvanced Science, EarlyView.
This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang   +6 more
wiley   +1 more source

Histopathologic Study of Caries at the Full and Partial Crowns Finish Line

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2010
BACKGROUND AND OBJECTIVE: The cast crowns replace lost tooth structure. Probably, recurrent caries occurs at the preparation margins and give rise to crown failure, affected by several factors, such as dental prosthesis design.
A Akhavan Tafti   +5 more
doaj  

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

open access: yes, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A   +2 more
core   +1 more source

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