Abstract: An antenna system comprising a dual-polarized radiating element extending generally in a first direction parallel or substantially parallel to a reflector of the antenna system is disclosed. The antenna system further comprises a feeding structure extending generally in a second direction having a component perpendicular to the reflector and being spaced apart, in relation to the first direction, from a center portion of the radiating element. The antenna system further comprises a coupling feeding line electrically coupling the center portion of the radiating element with the feeding structure. The antenna system further comprises a dielectric substrate at least partially extending parallel to the first direction. The radiating element is at least partially arranged on a first side of the dielectric substrate. The coupling feeding line is at least partially arranged on one or both of the first and second sides of the dielectric substrate.

Abstract: This disclosure pertains to a non-living biological product. Particularly, exosomes derived from stem cells can help restore heart function. According to certain embodiments, a fluid-induced shear stress mechanical stimulation process of stem cells is used to augmented quantity and quality of exosomes produced from stem cells. These exosomes serve as a therapeutic agent for the regenerative repair of diseases, such as diseased heart tissues. Therefore, compositions comprising the exosomes derived from stem cells and methods of treating a degenerative disease by administering the exosomes isolated from stem cells are also provided.

Abstract: This disclosure pertains to a non-living biological product. Particularly, exosomes derived from stem cells can help restore heart function. According to certain embodiments, a fluid-induced shear stress mechanical stimulation process of stem cells is used to augmented quantity and quality of exosomes produced from stem cells. These exosomes serve as a therapeutic agent for the regenerative repair of diseases, such as diseased heart tissues. Therefore, compositions comprising the exosomes derived from stem cells and methods of treating a degenerative disease by administering the exosomes isolated from stem cells are also provided.

Abstract: This disclosure pertains to a non-living biological product. Particularly, exosomes derived from stem cells can help restore heart function. According to certain embodiments, a fluid-induced shear stress mechanical stimulation process of stem cells is used to augmented quantity and quality of exosomes produced from stem cells. These exosomes serve as a therapeutic agent for the regenerative repair of diseases, such as diseased heart tissues. Therefore, compositions comprising the exosomes derived from stem cells and methods of treating a degenerative disease by administering the exosomes isolated from stem cells are also provided.

Abstract: This disclosure pertains to a non-living biological product. Particularly, exosomes derived from stem cells can help restore heart function. According to certain embodiments, a fluid-induced shear stress mechanical stimulation process of stem cells is used to augmented quantity and quality of exosomes produced from stem cells. These exosomes serve as a therapeutic agent for the regenerative repair of diseases, such as diseased heart tissues. Therefore, compositions comprising the exosomes derived from stem cells and methods of treating a degenerative disease by administering the exosomes isolated from stem cells are also provided.

Abstract: Systems and methods related to cutting electrodes (e.g. lithium metal) and electrode precursors are generally provided. The electrodes or electrode precursors may involve, for example, a lithium metal electrode or a lithium composite electrode, e.g., for use in an electrochemical cell or battery.

Abstract: A dynamically configurable audience response system includes multiple handsets communicatively coupled to a wireless aggregation point. Each handset includes at least one dynamically configurable operating parameter, such as a handset ID that identifies that handset, one or more parameters defining a communication channel that the handset can use to communicate with the wireless aggregation point, and/or one or more parameters defining various keys that the handset can use to establish a communication link with the wireless aggregation point. In some embodiments, the operating parameters associated with the handsets may be defined dynamically via the wireless aggregation point and without any user interaction with the handset.

Abstract: An educational activity system allows a teacher to specify activity parameters, such as subject, grade level, and template format that define an activity for one or more students to complete on a computer. The system then uses the selected activity parameters to determine appropriate subject matter from a content asset database and generates an activity incorporating the determined appropriate subject matter. After a student completed the activity via a computer, the system evaluates the completed activity for correctness and stores the results of each student in a student performance database.

Abstract: The invention discloses an aqueous method of making polymer coated superparamagnetic nanoparticles. Nanoparticles made by the method are included in the invention.

Abstract: An educational activity system allows a teacher to specify activity parameters, such as subject, grade level, and template format that define an activity for one or more students to complete on a computer. The system then uses the selected activity parameters to determine appropriate subject matter from a content asset database and generates an activity incorporating the determined appropriate subject matter. After a student completed the activity via a computer, the system evaluates the completed activity for correctness and stores the results of each student in a student performance database.

Abstract: A dynamically configurable audience response system includes multiple handsets communicatively coupled to a wireless aggregation point. Each handset includes at least one dynamically configurable operating parameter, such as a handset ID that identifies that handset, one or more parameters defining a communication channel that the handset can use to communicate with the wireless aggregation point, and/or one or more parameters defining various keys that the handset can use to establish a communication link with the wireless aggregation point. In some embodiments, the operating parameters associated with the handsets may be defined dynamically via the wireless aggregation point and without any user interaction with the handset.

Abstract: An audience response system with dynamic user interfaces and methods of using such an audience response system. The audience response system includes a wireless aggregation point and multiple remote handsets communicatively coupled to that wireless aggregation point. The remote handsets may be used (e.g., by students) to answer questions (e.g., posed by a teacher). At least some of the remote handsets may include user interfaces that include user input interface elements that are configurable via the wireless aggregation point. Additionally, the user interfaces of at least some of the remote handsets may provide feedback to the students regarding their interaction with the remote handsets.

Abstract: A system for recording writing performed on a surface includes a rechargeable stylus, a rechargeable eraser, and a charging station for one or both of the rechargeable stylus and the rechargeable eraser. Each of the rechargeable stylus and the rechargeable eraser includes a pair of charging rings. The charging rings are disposed so as to contact a corresponding pair of charging contacts on a receptacle on the charging station for the stylus or the eraser. The receptacle, charging contacts, and charging rings cooperate to charge rechargeable stylus or the rechargeable eraser when the stylus or eraser is placed into the receptacle.