NSF-GRF

The National Science Foundation Graduate Research Fellowship Program (NSF-GRFP) is an annual grant awarded by the National Science Foundation to approximately 2,000 doctoral-level students in the natural, social, and engineering sciences at US institutions. The fellowship provides an honorarium of $12,000 to be placed towards the cost of tuition and fees at the university the fellow attends; it also awards the student directly with an annual $34,000 stipend for three years. Each recipient could previously apply for a one time only travel award for $1,000. This travel award was previously for international research activities or presenting at an international scientific conference. However, in 2010, this opportunity was converted to the Nordic Research Opportunity, which is intended to facilitate collaborations between U.S. graduate fellows and scholars at Finnish, Swedish, Danish, and Norwegian research institutions.

Award history

The Graduate Research Fellowship was first awarded in 1952, with the goal of encouraging basic scientific research and ensuring comprehensive, competitive research programs for U.S. students. Since 1952, the NSF has funded over 46,500 Graduate Research Fellowships out of over 500,000 applicants. Many former graduate fellows have gone on to become Nobel laureates and members of the National Academy of Sciences.

List of file formats

This is a list of file formats used by computers, organized by type. Filename extensions are usually noted in parentheses if they differ from the format name or abbreviation. Many operating systems do not limit filenames to a single extension shorter than 4 characters, as was common with some operating systems that supported the FAT file system. Examples of operating systems that do not impose this limit include Unix-like systems. Also, Microsoft Windows NT, 95, 98, and Me do not have a three character limit on extensions for 32-bit or 64-bit applications on file systems other than pre-Windows 95/Windows NT 3.5 versions of the FAT file system. Some filenames are given extensions longer than three characters.

Some file formats may be listed twice or more. An example is the .b file.

Archive and compressed

GRF

GRF may refer to:

Sermorelin

Sermorelin (INN) (trade name is Geref), also known as GHRH (1-29), is a growth hormone-releasing hormone (GHRH) analogue used as a diagnostic agent. It is a 29-amino acid polypeptide representing the 1–29 fragment from endogenous human GHRH, and is thought to be the shortest fully functional fragment of GHRH. It is used as a diagnostic agent to assess growth hormone (GH) secretion. It is also used as doping agent in sports due to its correlation with increased growth of muscular and skeletal tissue. Sermorelin use is also hypothesized to improve deep rapid eye movement sleep.

See also

References

NSF

NSF may stand for:

Political organizations

Other organizations

Medicine

Deus Ex

Deus Ex is a cyberpunk-themed action role-playing video game—combining first-person shooter, stealth and role-playing elements—developed by Ion Storm and published by Eidos Interactive in 2000. First published for personal computers running Microsoft Windows, Deus Ex was later ported to Mac OS systems and PlayStation 2. Set in a dystopian world during the year 2052, the central plot follows rookie United Nations Anti-Terrorist Coalition agent JC Denton, as he sets out to combat terrorist forces, which have become increasingly prevalent in a world slipping ever further into chaos. As the plot unfolds, Denton becomes entangled in a deep and ancient conspiracy, encountering organizations such as Majestic 12, the Illuminati and the Hong Kong Triads during his journey.

The game received universal critical acclaim, including repeatedly being named "Best PC Game of All Time" in PC Gamer's "Top 100 PC Games" in 2011 and in a poll carried out by UK gaming magazine PC Zone. It was a frequent candidate for and winner of Game of the Year awards, drawing praise for its pioneering designs in player choice and multiple narrative paths. It has sold more than 1 million copies, as of April 23, 2009. The game has spawned both a sequel, Deus Ex: Invisible War, released in 2003, and a prequel, Deus Ex: Human Revolution, released in 2011.

N-ethylmaleimide sensitive fusion protein

N-ethylmaleimide-sensitive factor, also known as NSF or N-ethylmaleimide sensitive fusion proteins, is an enzyme which in humans is encoded by the NSF gene.

Function

NSF is a homohexameric AAA ATPase involved in membrane fusion. NSF is ubiquitously found in the cytoplasm of eukaryotic cells. It is a central component of the cellular machinery in the transfer of membrane vesicles from one membrane compartment to another. During this process, SNARE proteins on two joining membranes (usually a vesicle and a target membrane such as the plasma membrane) form a tight complex. This aids fusion of the vesicle with the target membrane. It has been proposed that the role of NSF is to undo these SNARE complexes once membrane fusion has occurred, using the hydrolysis of ATP as an energy source, allowing the dissociated SNAREs to be recycled for reuse in further rounds of membrane fusion. This proposal remains controversial, however. Recent work indicates that the ATPase function of NSF does not function in recycling of vesicles but rather functions in the act of fusing vesicles with the plasma membrane.