Upstream may refer to: *

Upstream (hydrology) In hydrology, a current in a water body is the flow of water in any one particular direction. The current varies spatially as well as temporally, dependent upon the flow volume of water, stream gradient, and channel geometry. In tidal zones, t ...

, the direction towards the source of a stream (against the direction of flow) *

Upstream (bioprocess) A bioprocess is a specific process that uses complete living cell (biology), cells or their components (e.g., bacteria, enzymes, chloroplasts) to obtain desired products. Transport of energy and mass is fundamental to many biological and environm ...

, part of therapeutic cell manufacturing processes from early cell isolation and cultivation until final harvest * ''Upstream'' (film), a 1927 film by John Ford *

Upstream (networking) In computer networking, upstream refers to the direction in which data can be transferred from the client to the server ( uploading). This differs greatly from downstream not only in theory and usage, but also in that upstream speeds are usually ...

, direction in which data can be transferred from the client to the server (uploading) * ''Upstream'' (newspaper), a newspaper covering the oil and gas industry *

Upstream (petroleum industry) The oil and gas industry is usually divided into three major sectors: upstream (also called exploration and production or E&P), '' midstream'' and '' downstream''. The upstream sector includes searching for potential underground or underwater cr ...

, sector of the oil and gas industry concerned with searching, exploratory drilling, and well operation *

Upstream (software development) In software development, when software has been forked or uses a chain of libraries/ dependencies, upstream refers to an issue that occurs in software related to the chain. It is the direction that is toward the original authors or maintainers ...

, direction towards the original authors or maintainers of software *

Upstream (streaming service) Upstream PH (stylized as UPSTREAM.ph) was a Philippine over-the-top content platform. It was founded by Filipino filmmakers and Reality Entertainment co-owners Erik Matti and Dondon Monteverde. The service provides movies, webseries, concerts ...

, a Philippine digital over-the-top streaming service *

Upstream (DNA) In molecular biology and genetics, upstream and downstream both refer to relative positions of genetic code in DNA or RNA. Each strand of DNA or RNA has a 5' end and a 3' end, so named for the carbon position on the deoxyribose (or ribose) ring. ...

, the direction of an RNA molecule based on its 5' relative position of genetic code *

Upstream (transduction) The upstream signaling pathway is triggered by the binding of a signaling molecule, a ligand, to a receiving molecule, a receptor. Receptors and ligands exist in many different forms, and only recognize/bond to particular molecules. Upstream ext ...

, direction of cell signals which are triggered by the binding of signal molecules (receptors) *

Upstream collection Upstream collection is a term used by the National Security Agency (NSA) of the United States for intercepting telephone and Internet traffic from the Internet backbone, meaning major Internet cables and switches, both domestic and foreign. Besid ...

, a set of NSA internet surveillance programs

See also