453 research outputs found
Alien Registration- Bouchard, Joseph A. (Fort Kent, Aroostook County)
https://digitalmaine.com/alien_docs/36268/thumbnail.jp
Guarding the Cold War Ramparts: The U.S. Navy\u27s Role in Continental Air Defense
Homeland defense was pushed to the top of the national security agenda when in August 1998 North Korea\u27s flight test of its Taep\u27o dong ballistic missile sparked a renewed debate over national missile defense. The Navy has become embroiled in that debate because its theater ballistic mis sile defense programs could provide a foundation for developing a sea-based national missile defense. It is seldom remembered that the Navy in the recent past took on a significant homeland defense mission-continental air defense. The Navy excelled at the continental air defense mission but found it difficult to reconcile with its other missions of sea control, power projection, and forward presence . That experience is worth examining as we contemplate our role in national defense today
Alien Registration- Bouchard, Joseph A. (Van Buren, Aroostook County)
https://digitalmaine.com/alien_docs/33273/thumbnail.jp
Accidents and Crises: Panay, Liberty, and Stark
Throughout the past decade there has been growing concern over the possibility of a Soviet-American war inadvertently triggered by escalatory processes resulting from unintentional or accidental actions or incidents. A spate of studies has examined these escalatory processes and the actions or incidents that might spark them
Alien Registration- Bouchard, Joseph A. (Lewiston, Androscoggin County)
https://digitalmaine.com/alien_docs/30586/thumbnail.jp
Microelectromechanical Scanner Using a Vertical Cavity Surface Emitting Laser
Optical scanners play a prominent role in the commercial and military industries. The scanner\u27s size, cost and reliability are critical characteristics. In this research a microoptical scanning system was fabricated by incorporating a vertical cavity surface emitting laser (VCSEL) onto a surface machined microelectromechanical die. The micro optics for laser beam steering includes a 135 deg mirror, a Fresnel lens, a lateral scanning rotating mirror, and a vertical scanning fan mirror. The VCSEL was attached to the die by solder and electrical connection was provided by wire bonding. Based on far field measurements the scanner had a lateral scan angle of 5.7 degrees and a vertical scan angle of 4.4 degrees. Based on spot diameter measurements at the fan mirror the scanner had a divergence angle of 0.524 degrees. The potential military applications of these scanners include laser radars, laser detectors, holographic storage devices, and data links between integrated circuit chips
Alien Registration- Bouchard, Mrs. Joseph D. (Kittery, York County)
https://digitalmaine.com/alien_docs/3657/thumbnail.jp
Layered Long Term Co-Culture of Hepatocytes and Endothelial Cells on a Transwell Membrane: Toward Engineering the Liver Sinusoid
This paper presents a novel liver model that mimics the liver sinusoid where most liver activities occur. A key aspect of our current liver model is a layered co-culture of primary rat hepatocytes (PRHs) and primary rat liver sinusoidal endothelial cells (LSECs) or bovine aortic endothelial cells (BAECs) on a transwell membrane. When a layered co-culture was attempted with a thin matrigel layer placed between hepatocytes and endothelial cells to mimic the Space of Disse, the cells did not form completely separated monolayers. However, when hepatocytes and endothelial cells were cultured on the opposite sides of a transwell membrane, PRHs co-cultured with LSECs or BAECs maintained their viability and normal morphology for 39 and 57 days, respectively. We assessed the presence of hepatocyte-specific differentiation markers to verify that PRHs remained differentiated in the long-term co-culture and analyzed hepatocyte function by monitoring urea synthesis. We also noted that the expression of cytochrome P-450 remained similar in the cocultured system from Day 13 to Day 48. Thus, our novel liver model system demonstrated that primary hepatocytes can be cultured for extended times and retain their hepatocyte-specific functions when layered with endothelial cells
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