As previously discussed, because of differences in anatomy, there are differences in techniques for intubating the trachea of infants and children compared with adults.[1–4,17–19,99,114,115] Because of the smaller dimensions of the pediatric airway there is increased risk of obstruction with trauma to the airway structures. A technique to be avoided is that in which the blade is advanced into t...

OBJECTIVES To prospectively compare the diagnostic performance of a non-Cartesian k-space sampling T2-weighted TSE BLADE sequence with a conventional T2-weighted TSE sequence in female pelvic organs. METHODS Forty-seven patients with sonographically indeterminate adnexal masses or uterine lesions underwent sagittal BLADE and conventional TSE at 1.5 T after glucagon administration. Two radiolo...

We created a model physical system to investigate the role of blade rigidity in setting forces and rates of mass exchange for a blade exposed to unsteady flow in a vortex street. Using a combination of experimental and theoretical investigations, we find that, broadly, both the forces and the mass exchange are higher for more flexible blades. Below a critical value of the dimensionless blade ri...

OBJECTIVE To assess the relative sharpness of osteotomes after multiple uses, routine maintenance, and sharpening. METHODS This prospective clinical study and mechanical model quantified the relative sharpness of identical osteotomes at baseline; after 3, 6, and 9 uses; and after sharpening techniques compared with osteotomes from hospital central supply. The Instron universal tester develope...

PURPOSE This study investigated independent risk factors and causative organisms in microbial keratitis in daily disposable contact lens (CL)-wearers. METHODS A multisite prospective case-control study was undertaken. Cases were daily disposable CL-wearers attending Moorfields Eye Hospital with microbial keratitis and those reported through a one-year surveillance study in Australia and in Ne...

Background Disposable electrocardiographic lead wires (ECG-LWs) may not be as durable as reusable ones. Objective To examine differences in alarm events between disposable and reusable ECG-LWs. Method Two cardiac telemetry units were randomized to reusable ECG-LWs, and 2 units alternated between disposable and reusable ECG-LWs for 4 months. A remote monitoring team, blinded to ECG-LW type, asse...

~The design of axial-flo~ turbines has been hampered in the past by a lack of comprehensive data regarding pressure losses and gas deflections through rows of turbine blades. In the present report much of the available information relating to this subject is studied and analysed to determine magnitudes of gas pressure losses and deflections in a wide variety of blade rows and also to determine ...

The Drosophila wing imaginal disc gives rise to three body parts along the proximo-distal (P-D) axis: the wing blade, the wing hinge and the mesonotum. Development of the wing blade initiates along part of the dorsal/ventral (D/V) compartment boundary and requires input from both the Notch and wingless (wg) signal transduction pathways. In the wing blade, wg activates the gene vestigial (vg), w...

A computational and experimental study was carried out to determine whether blade tip suction can increase compressor efficiency. Compressor flow fields contain concentrated regions of high entropy fluid near the blade surfaces. Blade suction can remove this fluid, lowering the entropy of the compressor throughflow, thereby avoiding a thermodynamic inefficiency, ultimately raising the compresso...