Predicting the holistic force-displacement relation of the periodontal ligament: in-vitro experiments and finite element analysis
Source, 14 hours ago
Background: The biomechanical property of the periodontal ligament (PDL) is important in orthodontics and prosthodontics. The objective of this study was to evaluate the feasibility of measuring the biomechanical behavior of the periodontal ligament using micro-computed tomography (micro-CT). Method...
Shoulder motor performance assessment in the sagittal plane in children with hemiplegia during single joint pointing tasks
Source, July 29, 2014
Background: Pointing is a motor task extensively used during daily life activities and it requires complex visuo-motor transformation to select the appropriate movement strategy. The study of invariant characteristics of human movements has led to several theories on how the brain solves the redunda...
A new method to measure higher visual functions in an immersive environment
Source, July 28, 2014
Background: Higher visual functions can be defined as cognitive processes responsible for object recognition, color and shape perception, and motion detection. People with impaired higher visual functions after unilateral brain lesion are often tested with paper pencil tests, but such tests do not a...
Geometric correction method for 3d in-line X-ray phase contrast image reconstruction
Source, July 28, 2014
Background: Mechanical system with imperfect or misalignment of X-ray phase contrast imaging (XPCI) components causes projection data misplaced, and thus result in the reconstructed slice images of computed tomography (CT) blurred or with edge artifacts. So the features of biological microstructures...
A magnetic resonance imaging study on the articulatory and acoustic speech parameters of Malay vowels
Source, July 25, 2014
The phonetic properties of six Malay vowels are investigated using magnetic resonance imaging (MRI) to visualize the vocal tract in order to obtain dynamic articulatory parameters during speech production. To resolve image blurring due to the tongue movement during the scanning process, a method bas...
Investigation of gastric cancers in nude mice using X-ray in-line phase contrast imaging
Source, July 24, 2014
Background: This paper is to report the new imaging of gastric cancers without the use of imaging agents. Both gastric normal regions and gastric cancer regions can be distinguished by using the principal component analysis (PCA) based on the gray level co-occurrence matrix (GLCM). Methods: Human ga...
A novel channel selection method for multiple motion classification using high-density electromyography
Source, July 24, 2014
Background: Selecting an appropriate number of surface electromyography (EMG) channels with desired classification performance and determining the optimal placement of EMG electrodes would be necessary and important in practical myoelectric control. In previous studies, several methods such as seque...
Clinical and pathological correlates of severity classifications in trigger fingers based on computer-aided image analysis
Source, July 23, 2014
Background: The treatment of trigger finger so far has heavily relied on clinicians'' evaluations for the severity of patients'' symptoms and the functionality of affected fingers. However, there is still a lack of pathological evidence supporting the criteria of clinical evaluations. This study''s ...
The effect of baseline pressure errors on an intracranial pressure-derived index: results of a prospective observational study
Source, July 22, 2014
Background: In order to characterize the intracranial pressure-volume reserve capacity, the correlation coefficient (R) between the ICP wave amplitude (A) and the mean ICP level (P), the RAP index, has been used to improve the diagnostic value of ICP monitoring. Baseline pressure errors (BPEs), caus...
Implementation of expert systems to support the functional evaluation of stand-to-sit activity
Source, July 21, 2014
Background: Functional evaluation of sit-to-stand and stand-to-sit activities is often used by physiotherapists in patients with neurological and musculoskeletal disorders. The observation of the way these activities are executed is essential in identifying kinesiological problems. There are differe...
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