CC-BY 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not. ABSTRACT: We describe open source software and hardware tools for calibrating, acquiring, and analyzing images for scanning angle interference microscopy (SAIM) analysis. These tools make it possible for any user with a TIRF microscope equipped...

BACKGROUND Percutaneous lag screw fixation is an alternative treatment for non-displaced or minimally displaced posterior column fractures. This study aims to explore new fluoroscopic views of the acetabulum for safe percutaneous insertion of posterior column lag screws. METHODS Axial computed tomography (CT) scans were taken of sixteen embalmed adult cadavers. The axial CT images at the leve...

This paper presents a new human motion tracking system using two wearable inertial sensors that are placed near the wrist and elbow joints of the upper limb. Each inertial sensor consists of a tri-axial accelerometer, a tri-axial gyroscope and a tri-axial magnetometer. The turning rates of the gyroscope were utilised for localising the wrist and elbow joints on the assumption that the two upper...

PURPOSE To investigate ocular dimensions in African Americans with the long anterior zonule (LAZ) trait. METHODS A total of 61 African American LAZ subjects and 61 age-matched, race-matched, and sex-matched controls were compared with respect to central corneal thickness, central corneal curvature, axial length (AL), and subjective refraction. RESULTS LAZ right eyes had a mean SR=+1.75±1.82...

A comparative analysis between the fundamental and second cyclotron harmonics of gyrotron backward-wave oscillators (gyro-BWOs) is presented. The simulation results reveal that nonlinear field contraction is a common feature for both harmonic interactions. Besides, the electron transit angle, used to characterize the axial modes of the fundamental harmonic TE11 mode at the start-oscillation con...

Two-high screw piercing of steel 50 billets was performed at feed angles 15 and 18 degrees. Piercing stopped 10–12 mm distance from the rear end billet. Axial fracture registered degrees angle in front mandrel nose, while no observed angle. for similar parameters simulated using DEFORM finite element analysis software, several criteria were used prediction. Ayada criterion ineffective, as evide...

BACKGROUND In the last years intramedullary nailing has become the treatment of choice for most displaced diaphyseal tibia fractures. In contrast intramedullary nailing of distal tibia fractures is accompanied by problems like decreased biomechanical stability. Nevertheless the indications for intramedullary nailing have been extended to include even more distal fractures. The purpose of this s...

PURPOSE To examine subfoveal choroidal thickness (SFCT) in eyes with glaucoma, using enhanced depth imaging spectral domain optical coherence tomography. METHODS The population-based Beijing Eye Study 2011 included 3468 individuals with a mean age of 64.6 ± 9.8 years (range: 50-93 years). A detailed ophthalmic examination was performed including spectral-domain optical coherence tomography (S...

AIM Some restriction and complications, such as progression of kyphosis, incidence of axial neck pain and decrease of postoperative cervical range of motion are concern. We designed this retrospective clinical study to evaluate the effect of laminoplasty by preserving the muscle attachments of C2 and C7 spinous processes on range of motion (ROM), axial neck pain and cervical lordosis. MATERIA...

With the growing demand for bearing capacity of columns, large-section angle steel (LAS) columns have been widely adopted. Q345 is most commonly used steel, but research on axial compression stability LAS mainly focuses steels with 420 MPa and above. In order to study buckling behavior a total 96 specimens are subjected tests. The test results compared specification analyzed. Based data, an acc...