Abstract: Described herein are techniques for creating graphs. A type of connection node applicable to the graphs is created in response to receiving user input. The type of connection node is configured to transmit data and not to process data. The type of connection node is configured to switch positions of input and output ports. At least one connection node of the type is added into a graph. The graph comprises a plurality of data nodes configured to process data. The graph comprises a plurality of edges connecting the plurality of data nodes. Adjustments to the graph are implemented by utilizing the at least one connection node.

Abstract: Embodiments of the present disclosure provide an object connection method and apparatus, an electronic device, a storage medium, and a program product. The object connection method includes: in response to a first trigger operation, acquiring a first action position and a second action position based on the first trigger operation, where the first action position is used to determine a first object to be connected; determining a second object capable of establishing a connection to the first object, and creating a detection element corresponding to the second object, where the second object is in a detection region of the detection element, and an area of the detection region is greater than an area of the second object; and in response to the second action position being in the detection region, connecting the first object to the second object in the detection region in response to a second trigger operation.

Abstract: To gain a better understanding of brain tumor angiogenesis, new techniques for isolating brain endothelial cells (ECs) and evaluating gene expression patterns were developed. When transcripts from brain ECs derived from normal and malignant colorectal tissues were compared with transcripts from non-endothelial cells, genes predominantly expressed in the endothelium were identified. Comparison between normal- and tumor-derived endothelium revealed genes that were specifically elevated in tumor-associated brain endothelium. These results confirm that neoplastic and normal endothelium in human brains are distinct at the molecular level, and have significant implications for the development of anti-angiogenic therapies in the future.

Abstract: The heater shutdown circuit is connected between an electric current source and a heating element in an electric heater and is operable to shut off the flow of current to the heating element when the heating element reaches a predetermined temperature and to maintain the flow of current shut off after the heating element cools to a temperature below the predetermined temperature. The heater shutdown circuit will maintain the electric current shut off until the heater shutdown circuit is disconnected from the current source for a predetermined period of time after which the heater shutdown circuit can be re-energized. The heater shutdown circuit includes a control circuit connected to the current source, a switching circuit coupled between the control circuit and the heating element, and a current sensing circuit coupled between the heating element and the junction between the control circuit and the switching circuit.