Results 31 to 40 of about 1,168,061 (327)

The Importance of mechanical behaviour in orthodontic archwires

open access: yesAustralasian Orthodontic Journal, 1986
For many years it has been recognised that the mechanical behaviour of the archwire material plays a central role in orthodontic treatment. Burstone et al (1961) recognised this in their analyses of the forces obtained from cantilevers and springs ...
Hazel Roger J., West Victoir C.
doaj   +1 more source

Botox Therapy for Hypertrophy of the Masseter Muscle Causes a Compensatory Increase of Stiffness of Other Muscles of Masticatory Apparatus

open access: yesLife, 2022
Little is known about the nature of masseter muscle hypertrophy. We investigated the masseter muscle stiffness change after a single intra-masseteric session of Botox injections in people with benign bilateral masseter hypertrophy and the effect of the ...
Dorota Mierzwa   +8 more
doaj   +1 more source

The acute effect of maximal exercise on central and peripheral arterial stiffness indices and hemodynamics in children and adults [PDF]

open access: yes, 2016
Xavier Melo is supported by a research grant from the Foundation for Science and Technology (FCT), Ministry of Education and Science of Portugal (grant: SFRH/ BD/ 70515/ 2010). Nuno M.
Fernhall, Bo   +6 more
core   +1 more source

3D Collagen-Nanocellulose Matrices Model the Tumour Microenvironment of Pancreatic Cancer

open access: yesFrontiers in Digital Health, 2021
Three-dimensional (3D) cancer models are invaluable tools designed to study tumour biology and new treatments. Pancreatic ductal adenocarcinoma (PDAC), one of the deadliest types of cancer, has been progressively explored with bioengineered 3D approaches
Rodrigo Curvello   +8 more
doaj   +1 more source

Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]

open access: yes, 2016
The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Bezin, Yann   +2 more
core   +1 more source

P5.19 STIFF ARTERIES, STIFF HEARTS?

open access: yesArtery Research, 2013
Objectives: To examine the relationship between arterial stiffness and diastolic function in healthy normotensive subjects. Methods: For this study, 43 male (40±10 years) and 64 female (40±9 years) subjects were recruited. All were lifelong non-smokers, normolipidaemic, normoglycaemic and had normal 24-hour blood pressure responses (SBP\DBP <140\90).
O. Mac Ananey, V. Maher
openaire   +2 more sources

Reduction of friction by normal oscillations. II. In-plane system dynamics

open access: yesFriction, 2017
The influence of out-of-plane oscillations on friction is a well-known phenomenon that has been studied extensively with various experimental methods, e.g., pin-on-disk tribometers.
Xinyu Mao   +3 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Durotactic control within a 3D collagen matrix [PDF]

open access: yes, 2008
INTRODUCTION: While matrix stiffness has been implicated in cell adhesion and migration, most studies have focused on the effects of substrate stiffness in 2D. This work describes a novel continuous stiffness gradient model for studying such processes in
Brown, RA, Hadjipanayi, E, Mudera, V
core  

Spin wave stiffness and exchange stiffness of doped permalloy via ab-initio calculation

open access: yes, 2019
The way doping affects the spin wave stiffness and the exchange stiffness of permalloy (Py) is investigated via ab-initio calculations, using the Korringa-Kohn-Rostoker (KKR) Green function formalism.
Ebert, Hubert   +2 more
core   +1 more source

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