115 research outputs found
The effects of the plane of vestibular stimulation on task performance and involuntary eye motion
Vestibular stimulation and subject orientation effects on task performance and involuntary eye motio
Some observations during weightlessness sim- ulation with subject immersed in a rotating water tank
Observations during weightlessness simulation with subject immersed in rotating water tan
Wind Tunnel Investigation at Low Speed of Aerodynamic Characteristics of Army Chemical Corps Model E-112 Bomblets with Span Chord Ratio of 2 - 1
An experimental investigation has been made in the Langley stability tunnel to determine the aerodynamic characteristics of the Army Chemical Corps model E-112 bomblets with span-chord ratio of 2:1. A detailed analysis has not been made; however, the results showed that all the models were spirally unstable and that a large gap between the model tips and end plates tended to reduce the instability
Wind Tunnel Investigation at Low Speed of the Aerodynamic Characteristics of the Army Chemical Corps Model E112 Bomblets
Effect of Taper Ratio on Low-speed Static and Yawing Stability Derivatives of 45 Degree Sweptback Wings with Aspect Ratio of 2.61
Wind Tunnel Tests of Ailerons at Various Speeds I : Ailerons of 0.20 Airfoil Chord and True Contour with 0.35 Aileron-chord Extreme Blunt Nose Balance on the NACA 66,2-216 Airfoil
Hinge-moment, lift, and pressure-distribution measurements were made in the two-dimensional test section of the NACA stability tunnel on a blunt-nose balance-type aileron on an NACA 66,2-216 airfoil at speeds up to 360 miles per hour corresponding to a Mach number of 0.475. The tests were made primarily to determine the effect of speed on the action of this type of aileron. The balance-nose radii of the aileron were varied from 0 to 0.02 of the airfoil chord and the gap width was varied from 0.0005 to 0.0107 of the airfoil chord. Tests were also made with the gap sealed
SARS-Like coronavirus WIV1-CoV does not replicate in Egyptian fruit bats (Rousettus aegyptiacus)
Severe acute respiratory syndrome (SARS)-like WIV1-coronavirus (CoV) was first isolated
from Rhinolophus sinicus bats and can use the human angiotensin converting enzyme 2 (ACE2) receptor.
In the current study, we investigate the ability of WIV1-CoV to infect Rousettus aegyptiacus bats. No
clinical signs were observed throughout the experiment. Furthermore, only four oropharyngeal swabs
and two respiratory tissues, isolated on day 3 post inoculation, were found positive for viral RNA.
Two out of twelve bats showed a modest increase in coronavirus specific antibodies post challenge.
In conclusion, WIV1-CoV was unable to cause a robust infection in Rousettus aegyptiacus bats
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Virology—the path forward
In the United States (US), biosafety and biosecurity oversight of research on viruses is being reappraised. Safety in virology research is paramount and oversight frameworks should be reviewed periodically. Changes should be made with care, however, to avoid impeding science that is essential for rapidly reducing and responding to pandemic threats as well as addressing more common challenges caused by infectious diseases. Decades of research uniquely positioned the US to be able to respond to the COVID-19 crisis with astounding speed, delivering life-saving vaccines within a year of identifying the virus. We should embolden and empower this strength, which is a vital part of protecting the health, economy, and security of US citizens. Herein, we offer our perspectives on priorities for revised rules governing virology research in the US
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