منابع مشابه
Update on retinal prosthetic research: the Boston Retinal Implant Project.
The field of retinal prosthetic research, now more than 20 years old, has produced many high-quality technical options that have the potential to restore vision to patients with acquired disease of the outer retina. Five companies have performed Phase I clinical trials demonstrating that blind patients can reliably report basic elements of visual percepts induced by electrical stimulation. Howe...
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PURPOSE Previously identified U.S. drug information centers (DICs) were surveyed to determine whether they were still in existence and whether changes had occurred in the DICs since 2003. METHODS Eighty-nine DICs identified in a 2003 survey were surveyed in April 2008. For DICs still in existence, questions were designed to determine whether there were changes in the mission, time spent on ac...
متن کاملBoston University
Class III Semaphorins (SEMA3) comprise a family of chemokines that have been implicated as negative regulators of axonal guidance, angiogenesis and tumor progression. It has been demonstrated previously that one SEMA3, SEMA3F, may have therapeutic potential in the treatment of cancer. When transfected with SEMA3F, the highly metastatic human melanoma cell line A375SM was found to exhibit a high...
متن کاملBoston University
Land cover, vegetation green leaf area index (LAI) and the fraction of incident photosynthetically active radiation absorbed by vegetation (FPAR) govern the exchange of energy, momentum and mass (water and carbon dioxide, for example) between the Earth’s surface and the atmosphere. These variables are operationally derived from measurements of the Multiangle Imaging SpectroRadiometer (MISR) abo...
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ژورنال
عنوان ژورنال: MRS Bulletin
سال: 1989
ISSN: 0883-7694,1938-1425
DOI: 10.1557/s0883769400061649