Abstract: Disclosed is a serum-free freezing medium used in adipose-derived stem cells and a method for establishing an adipose-derived stem cell library. The serum-free freezing medium comprises a serum-free culture medium, dimethyl sulfoxide and a serum substitution component KSR; the defects of unstable freezing quality of the adipose-derived stem cells and influence of harmful factors in serum on the adipose-derived stem cells are solved, and the adipose-derived stem cells stored have the advantages of high survival percentage, well adherence growth and strong differentiation capacity.

Abstract: Methods and systems are also provided herein for presenting an advertisement to a user who perceives a media asset to be in a lull, and refraining from presenting the advertisement to a different user who does not perceive the media asset to be in a lull. Control circuitry may determine that a first user perceives a segment of the media asset as a lull based on a first user profile. The control circuitry may determine whether or not the second user also perceives the segment of the media asset to be a lull based on a second user profile. In response to determining that the second user does not also perceive the segment of the media asset to be a lull, the control circuitry may cause the advertisement to be presented to the first user but not to the second user.

Abstract: Methods and systems are also provided herein for establishing a mode of communication between a first user and a second user when a media asset is in a lull. Control circuitry may determine that a first user perceives a segment of the media asset as a lull based on a first user profile. The control circuitry may retrieve a second user profile associated with a second user, and may determine that the second user also perceives the segment of the media asset to be a lull based on the second user profile. The control circuitry may responsively establish a mode of communication (e.g., a chat window) between the first user and the second user.

Abstract: Systems and methods for placing advertisements based on social media activity are provided. Control circuitry may retrieve a user profile for the first user and determine whether the media asset matches characteristics of the user profile. The control circuitry may detect that the first user has transmitted a communication to a remote server, which in turn transmits the communication to a plurality of other users associated with the first user on the remote server. The control circuitry may then determine whether the content of the communication is related to the media asset. In response to determining that the content of the communication is not related to the media asset and that the media asset matches characteristics of the user profile, the control circuitry may cause an advertisement to be presented to the user. The control circuitry may responsively present an advertisement.

Abstract: Methods and systems are also provided herein for presenting an advertisement to a user who perceives a media asset to be in a lull, and refraining from presenting the advertisement to a different user who does not perceive the media asset to be in a lull. Control circuitry may determine that a first user perceives a segment of the media asset as a lull based on a first user profile. The control circuitry may determine whether or not the second user also perceives the segment of the media asset to be a lull based on a second user profile. In response to determining that the second user does not also perceive the segment of the media asset to be a lull, the control circuitry may cause the advertisement to be presented to the first user but not to the second user.

Abstract: Methods and systems are also provided herein for establishing a mode of communication between a first user and a second user when a media asset is in a lull. Control circuitry may determine that a first user perceives a segment of the media asset as a lull based on a first user profile. The control circuitry may retrieve a second user profile associated with a second user, and may determine that the second user also perceives the segment of the media asset to be a lull based on the second user profile. The control circuitry may responsively establish a mode of communication (e.g., a chat window) between the first user and the second user.

Abstract: Disclosed is a serum-free freezing medium used in adipose-derived stem cells and a method for establishing an adipose-derived stem cell library. The serum-free freezing medium comprises a serum-free culture medium, dimethyl sulfoxide and a serum substitution component KSR; the defects of unstable freezing quality of the adipose-derived stem cells and influence of harmful factors in serum on the adipose-derived stem cells are solved, and the adipose-derived stem cells stored have the advantages of high survival percentage, well adherence growth and strong differentiation capacity.

Abstract: Systems and methods are provided for displaying media assets on user equipment. The first media asset that the user desires to view is displayed on a display screen of the user equipment and its associated content characteristic is identified. Upon receiving a request to access a different media asset, a search is initiated to identify a second media asset that matches the identified content characteristic of the displayed media asset. After such a media asset has been identified, it is determined whether the content source that provides such an identified media asset includes an advertisement at the time the user request is received. If the content source of the identified media asset does not include an advertisement at the time of the user request, then the identified media asset is displayed on the display screen of the user equipment.

Abstract: Systems and methods are provided for displaying media assets on user equipment. The first media asset that the user desires to view is displayed on a display screen of the user equipment and its associated content characteristic is identified. Upon receiving a request to access a different media asset, a search is initiated to identify a second media asset that matches the identified content characteristic of the displayed media asset. After such a media asset has been identified, it is determined whether the content source that provides such an identified media asset includes an advertisement at the time the user request is received. If the content source of the identified media asset does not include an advertisement at the time of the user request, then the identified media asset is displayed on the display screen of the user equipment.

Abstract: Systems and methods are provided for displaying media assets on user equipment. One of several content sources is designated as a first favorite content source. A first media asset that the user desires to view is displayed on a display screen of the user equipment. It is determined whether the first content source includes an advertisement. Upon determining that a first content source that provides the first media asset includes an advertisement, the first favorite content source is automatically accessed.

Abstract: A method and system for aggregating a plurality of parallel communications links transmitting data between adjacent nodes in a network is provided. The method simplifies network topology by replacing multiple parallel communications links between nodes in the network with a single aggregated link. The method advertises the available bandwidth of each aggregated link to the network, the available bandwidth being the maximum bandwidth available for any one of the parallel links in the aggregate. The method permits each aggregated link to select which of the parallel links in the aggregate is to be used to transfer data from one node to the other. Aggregating links can be automatic and based on one or more predetermined criteria, such as the service class supported by the parallel links.