Results 31 to 40 of about 320,898 (363)

Deforming diamond

open access: yesIMA Journal of Applied Mathematics, 2016
For materials science, diamond crystals are almost unrivaled for hardness and a range of other properties. Yet, when simply abstracting the carbon bonding structure as a geometric bar-and-joint periodic framework, it is far from rigid. We study the geometric deformations of this type of framework in arbitrary dimension d, with particular regard to the ...
Borcea, Ciprian, Streinu, Ileana
openaire   +2 more sources

Effect of bacterial resistant zwitterionic derivative incorporation on the physical properties of resin-modified glass ionomer luting cement

open access: yesScientific Reports, 2023
Biofilms induce microbial-mediated surface roughening and deterioration of cement. In this study, zwitterionic derivatives (ZD) of sulfobetaine methacrylate (SBMA) and 2-methacryloyloxyethyl phosphorylcholine, were added in concentrations of 0, 1, and 3%
Chengzan Wu   +8 more
doaj   +1 more source

The diagnosis and treatment of a special rare type of Monteggia equivalent fractures in children

open access: yesFrontiers in Pediatrics, 2023
PurposeTo explore the characteristics, mechanism, treatment, and prognosis of head–neck separation type of Monteggia equivalent fractures in children.MethodsPatients with this injury were reviewed retrospectively.
Fei Su   +38 more
doaj   +1 more source

Skin irritation in children undergoing orthodontic facemask therapy

open access: yesScientific Reports, 2023
Orthodontic facemasks are extraoral orthodontic appliances that influence maxillary and mandibular development in children with skeletal Class III malocclusion.
Harim Kim   +5 more
doaj   +1 more source

DEFORMED INSTANTONS [PDF]

open access: yesCPT and Lorentz Symmetry, 2005
In this talk, instantons are discussed in the presence of Lorentz violation. Conventional topological arguments are applied to classify the modified solutions to the Yang-Mills equations according to the topological charge. Explicit perturbations to the instantons are calculated in detail for the case of unit topological charge.
Colladay, Don, McDonald, Patrick
openaire   +2 more sources

Zinc-modified phosphate-based glass micro-filler improves Candida albicans resistance of auto-polymerized acrylic resin without altering mechanical performance

open access: yesScientific Reports, 2022
Colonization of auto-polymerized acrylic resin by pathogenic Candida albicans is a common problem for denture users. In this study, zinc-modified phosphate-based glass was introduced into an auto-polymerized acrylic resin at concentrations of 3, 5, and 7
Myung-Jin Lee   +5 more
doaj   +1 more source

Deformable classifiers

open access: yesQuarterly of Applied Mathematics, 2019
Geometric variations of objects, which do not modify the object class, pose a major challenge for object recognition. These variations could be rigid as well as non-rigid transformations. In this paper, we design a framework for training deformable classifiers, where latent transformation variables are introduced, and a transformation of the object ...
Shen, Jiajun, Amit, Yali
openaire   +2 more sources

Clinically Significant Thromboembolic Disease in Adult Spinal Deformity Surgery: Incidence and Risk Factors in 737 Patients. [PDF]

open access: yes, 2017
Study Design:Retrospective cohort study. Objectives:Describe the rate and risk factors for venous thromboembolic events (VTEs; defined as deep venous thrombosis [DVT] and/or pulmonary embolism [PE]) in adult spinal deformity (ASD) surgery.
Bess, Shay   +14 more
core   +1 more source

Survival for Children Diagnosed With Wilms Tumour (2012–2022) Registered in the UK and Ireland Improving Population Outcomes for Renal Tumours of Childhood (IMPORT) Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Improving Population Outcomes for Renal Tumours of childhood (IMPORT) is a prospective clinical observational study capturing detailed demographic and outcome data on children and young people diagnosed with renal tumours in the United Kingdom and the Republic of Ireland.
Naomi Ssenyonga   +56 more
wiley   +1 more source

Long-term outcome (28–40 years) after correction of leg length discrepancy through permanent epiphysiodesis

open access: yesJournal of Orthopaedics and Traumatology
Background Permanent epiphysiodesis (pED) according to Phemister is an established treatment for leg length discrepancies (LLD) but has largely been replaced by less invasive techniques.
Andrea Laufer   +8 more
doaj   +1 more source

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