Analyzing errors in measuring the gyroscope drifting rate by means of the fixed-angle method

1978 ◽  
Vol 21 (6) ◽  
pp. 793-795
Author(s):  
V. A. Ivanov
Keyword(s):  
Fixed Angle ◽  
Angle Method

Fixed-angle method for low-energy resonance calculations

1965 ◽  
Vol 38 (2) ◽  
pp. 872-882 ◽  
Author(s):  
H. Burkhardt ◽  
G. P. McCauley
Keyword(s):  
Low Energy ◽  
Fixed Angle ◽  
Energy Resonance ◽  
Angle Method

scholarly journals Minimising the risk of extensor pollicis longus rupture following volar plate fixation of distal radius fractures: a cadaveric study

2011 ◽  
Vol 93 (1) ◽  
pp. 57-60 ◽  
Author(s):  
DC Perry ◽  
DMG Machin ◽  
JA Casaletto ◽  
DJ Brown
Keyword(s):  
High Risk ◽  
Distal Radius ◽  
Plate Fixation ◽  
Tendon Injury ◽  
Distal Radius Fractures ◽  
Volar Plate ◽  
Radius Fractures ◽  
Extensor Pollicis Longus ◽  
Fixed Angle ◽  
Volar Plate Fixation

INTRODUCTION Rupture of extensor pollicis longus (EPL) tendon is a recognised complication following volar plate fixation of distal radius fractures, usually from attrition caused by prominent screws. We sought to identify the screw holes in some of the most commonly used plates which may precipitate tendon injury. SUBJECTS AND METHODS Three fixed-angle volar locking plates were sequentially positioned into 18 cadaveric arms. A wire was passed through each of the holes in the plates using a locking guide and the dorsal relationships noted. RESULTS Each plate had specific ‘high-risk’ holes which directed the wire towards the EPL groove. The central screw holes appeared mostly implicated in EPL injury. CONCLUSIONS Awareness of ‘high-risk’ holes and appropriate minor alterations in surgical technique may consequently decrease the incidence of EPL irritation and rupture.

scholarly journals Can Adding BMP2 Improve Outcomes in Patients Undergoing the SUPERhip Procedure?

Children ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 495
Author(s):  
Dror Paley ◽  
Claire E. Shannon ◽  
Monica Nogueira ◽  
Catharina Chiari ◽  
Matthew Harris
Keyword(s):  
Femoral Neck ◽  
Internal Fixation ◽  
Varus Deformity ◽  
Drill Hole ◽  
Late Complications ◽  
Coxa Vara ◽  
Fixed Angle ◽  
Extremity Reconstruction ◽  
Delayed Ossification ◽  
Fixed Angle Device

Congenital femoral deficiency (CFD) Paley type 1b is characterized by severe bony deformity of the upper femur, extra-articular contractures of the hip, and, delayed ossification of the femoral neck and/or subtrochanteric region. The Systematic Utilitarian Procedure for Extremity Reconstruction of the hip (SUPERhip) procedure for the correction of CFD deformities was developed in 1997. Initially, a non-fixed angle device (rush rod) was used for fixation. Late complications of persistent delayed ossification and recurrent varus deformity occurred. In order to reduce and treat such complications, fixation with a fixed angle device and the off-label use of BMP2 to induce ossification of the un-ossified femoral neck were employed. The purpose of this study is to determine if the use of a fixed angle device, and, BMP2 inserted into a drill hole in the cartilage of the femoral neck, decreases the incidence of these late complications. We retrospectively reviewed 72 SUPERhip procedures performed for Paley type 1b CFD between 1997 and 2012. Due to recurrent varus or persistent delayed ossification of the femoral neck, 34 revision SUPERhip procedures were performed. In total, 106 SUPERhip procedures were studied. Sixty-eight SUPERhips were performed using internal fixation without BMP2, while 38 SUPERhips were performed with both internal fixation and the addition of BMP2. Forty-one were performed using non-fixed angle internal fixation while 65 had fixed angle internal fixation. Fixed angle devices significantly reduced the incidence of recurrent varus compared with non-fixed angle devices. Inserting BMP2 in the femoral neck significantly reduced the incidence of persistent delayed ossification. Using only a fixed angle device but no BMP2 did not reduce the incidence of delayed ossification. The combination of both a fixed angle device and BMP2 reduced the incidence of recurrent coxa vara and persistent delayed ossification of the femoral neck. The SUPERhip procedure corrects the pathoanatomy of the proximal femur in CFD Paley type 1b but is associated with a very high risk of recurrence of coxa vara and persistence of femoral neck delayed ossification, unless, a fixed angle internal fixation device is used to prevent recurrent coxa vara and BMP2 is used to induce ossification of the femoral neck.

scholarly journals Metal Oxide Nanorods-Based Sensor Array for Selective Detection of Biomarker Gases

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1922
Author(s):  
Gwang Su Kim ◽  
Yumin Park ◽  
Joonchul Shin ◽  
Young Geun Song ◽  
Chong-Yun Kang
Keyword(s):  
Real Time ◽  
Sensor Array ◽  
High Sensitivity ◽  
Gas Analysis ◽  
Diagnostic Methods ◽  
Real Time Monitoring ◽  
Non Invasive ◽  
Sensitivity And Selectivity ◽  
Breath Gas Analysis ◽  
Angle Method

The breath gas analysis through gas phase chemical analysis draws attention in terms of non-invasive and real time monitoring. The array-type sensors are one of the diagnostic methods with high sensitivity and selectivity towards the target gases. Herein, we presented a 2 × 4 sensor array with a micro-heater and ceramic chip. The device is designed in a small size for portability, including the internal eight-channel sensor array. In2O3 NRs and WO3 NRs manufactured through the E-beam evaporator’s glancing angle method were used as sensing materials. Pt, Pd, and Au metal catalysts were decorated for each channel to enhance functionality. The sensor array was measured for the exhaled gas biomarkers CH3COCH3, NO2, and H2S to confirm the respiratory diagnostic performance. Through this operation, the theoretical detection limit was calculated as 1.48 ppb for CH3COCH3, 1.9 ppt for NO2, and 2.47 ppb for H2S. This excellent detection performance indicates that our sensor array detected the CH3COCH3, NO2, and H2S as biomarkers, applying to the breath gas analysis. Our results showed the high potential of the gas sensor array as a non-invasive diagnostic tool that enables real-time monitoring.

Hyperspectral band selection using the N-dimensional Spectral Solid Angle method for the improved discrimination of spectrally similar targets

2019 ◽  
Vol 79 ◽  
pp. 35-47 ◽  
Author(s):  
Yaqian Long ◽  
Benoit Rivard ◽  
Derek Rogge ◽  
Minghua Tian
Keyword(s):  
Solid Angle ◽  
Band Selection ◽  
Angle Method

Immunogold-Silver Staining (IGSS) of (NCP and CP) BVDV Infected Subcellular Fraction Bands

1997 ◽  
Vol 3 (S2) ◽  
pp. 155-156
Author(s):  
C.E. Hearne ◽  
D.L. Johnson ◽  
H. Van Campen
Keyword(s):  
Subcellular Fraction ◽  
Membrane Vesicles ◽  
Bovine Viral Diarrhea ◽  
Fixed Angle ◽  
Cell Monolayers ◽  
Diarrhea Virus ◽  
Viral Diarrhea ◽  
Transmission Electron ◽  
Viral Diarrhea Virus ◽  
Bovine Turbinate

Pre-embedding immunogold-silver (IGSS) techniques are useful to localize antigens in cell monolayers and agarose embedded cell suspensions for transmission electron microscopy. Procedural centrifugations, however, present a challenge when attempting to localize antigens in subcellular fractions. Using a Beckman Airfuge Ultracentrifuge to concentrate the subcellar fraction bands and resuspending the organelles in agarose simplifies IGSS processing and resin embedding procedures.Control bovine turbinate (BT), and BT cells infected with cytopathic (cp NADL) and non-cytopathic (ncp NY-1) strains of bovine viral diarrhea virus (BVDV) were fractioned according to Bienz et al (1992). Bands containing membrane vesicles (Fig 2) were collected and each fraction band was pelleted at 169,000g for 20 min using an A-95 fixed angle rotor in a Beckman Airfuge Ultracentrifuge. Each fraction pellet was resuspended in 50μl of 30% agarose, solidified, and trimmed to < lmm. IGSS procedures were carried out according to Nanoprobes, Inc., Stoney Brook, NY, and Hearne & Van Campen (1996).

Treating patella fractures with a fixed-angle patella plate—A prospective observational study

Injury ◽  
2016 ◽  
Vol 47 (8) ◽  
pp. 1737-1743 ◽  
Author(s):  
Michael Wild ◽  
Kai Fischer ◽  
Florian Hilsenbeck ◽  
Mohssen Hakimi ◽  
Marcel Betsch
Keyword(s):  
Observational Study ◽  
Prospective Observational Study ◽  
Fixed Angle ◽  
Patella Fractures

Rapid CsCl gradients in fixed angle rotors for purification of viruses and organelle DNA

1983 ◽  
Vol 1 (3) ◽  
pp. 131-136 ◽  
Author(s):  
Laurence K. Grill ◽  
O. Mitch Griffith ◽  
Stephen J. Garger
Keyword(s):  
Fixed Angle ◽  
Organelle Dna

scholarly journals Basic Theoretical Methods in Microwave Plasma Polarimetry: Quasi-Isotropic Approximation, Stokes Vector Formalism and Complex Polarization Angle Method

2008 ◽  
Author(s):  
Yu. A. Kravtsov ◽  
B. Bieg ◽  
K. Yu. Bliokh ◽  
M. Hirsch ◽  
Hans-Jürgen Hartfuss ◽  
...  
Keyword(s):  
Microwave Plasma ◽  
Polarization Angle ◽  
Stokes Vector ◽  
Theoretical Methods ◽  
Isotropic Approximation ◽  
Angle Method ◽  
Complex Polarization
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