Results 51 to 60 of about 619,697 (330)

Dirac method and symplectic submanifolds in the cotangent bundle of a factorizable Lie group [PDF]

, 2010
In this work we study some symplectic submanifolds in the cotangent bundle of a factorizable Lie group defined by second class constraints. By applying the Dirac method, we study many issues of these spaces as fundamental Dirac brackets, symmetries, and ...
Ahbraham M., Dirac P. A. M., H. Montani, Lu J.-H., Marsden J., Reyman A. G., S. Capriotti   +6 more
core   +2 more sources

Mechanical characterization of aesthetic orthodontic brackets by the dynamic indentation method

Dental Materials Journal, 2022
The objective of this study is to investigate the mechanical properties, such as the dynamic hardness and indentation elastic modulus, of commercially available aesthetic orthodontic brackets, such as ceramic and plastic brackets, by the dynamic micro-indentation method.
Taro, Iwasaki, Shunsuke, Nagata, Takahiro, Ishikawa, Yasuhiro, Tanimoto   +3 more
openaire   +2 more sources

Survivin and Aurora Kinase A control cell fate decisions during mitosis

Molecular Oncology, EarlyView.
Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir, Shalitha Wickrama Arachchige, Sally P. Wheatley   +2 more
wiley   +1 more source

Effect of different bracket types on streptococcus mutans count in orthodontic patients using fluoridated toothpaste

Journal of Baghdad College of Dentistry, 2020
Background: Plaque retention during fixed orthodontic therapy is an important cause of developing enamel demineralization. The purpose of this study was to evaluate the effect of different brackets types on the count of Streptococcus Mutans in ...
Hala M Jasim , Dhiaa A Al-Dabagh, Maha A. A Mahmood   +2 more
doaj   +1 more source

The Microetching Effect on the Shear Bond Strength of Orthodontic Metal Brackets [PDF]

Al-Rafidain Dental Journal, 2011
Aims: To evaluate and to compare the shear bond strength of new brackets, new microetched brackets and debond microetcher clean brackets when bond to virgin and previously bond teeth.
Hakam H Sabah
doaj   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Two-dimensional metric and tetrad gravities as constrained second order systems [PDF]

, 2006
Using the Gitman-Lyakhovich-Tyutin generalization of the Ostrogradsky method for analyzing singular systems, we consider the Hamiltonian formulation of metric and tetrad gravities in two-dimensional Riemannian spacetime treating them as constrained ...
Bukhbinder I. L., Carmeli M., Dirac P. A. M., Gitman D. M., Gitman D. M., Gitman D. M., N. KIRIUSHCHEVA, R. N. GHALATI, S. V. KUZMIN, Whittaker E. T.   +9 more
core   +2 more sources

Higher Amyloid and Tau Burden Is Associated With Faster Decline on a Digital Cognitive Test

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective A 2‐min digital clock‐drawing test (DCTclock) captures more granular features of the clock‐drawing process than the pencil‐and‐paper clock‐drawing test, revealing more subtle deficits at the preclinical stage of Alzheimer's disease (AD). A previous cross‐sectional study demonstrated that worse DCTclock performance was associated with
Jessie Fanglu Fu, Talia Robinson, Marina Rodriguez Alonso, Adela Francis Malave, Roos J. Jutten, Michael J. Properzi, Brian C. Healy, Jackson C. Thompson, Grace Del Carmen Montenegro, Emma Thibault, Dana Penney, Randall Davis, Reisa A. Sperling, Kathryn V. Papp, Keith A. Johnson, Julie C. Price, Dorene M. Rentz   +16 more
wiley   +1 more source

An Attempt to Acquire Antibacterial Features for Orthodontic Brackets by Titanium Dioxide Coating - A Pilot Study

Turkish Journal of Orthodontics, 2010
Aim:The aim of this study was to evaluate the ability to coat the orthodontic brackets with TiO2 by the way of sol-gel dip-coating method for providing a reduction in pathogenic oral microflora during the treatment period with UV-applications.Materials ...
Hakan Bulut, Erdal Işıksal
doaj   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang, Yujie Liu, Fei Li, Xuelin Li, Lanlan Li, Jie Zhang, Yali Xu   +6 more
wiley   +1 more source