Abstract: Aspects of the present disclosure relate to systems and methods for injection and retraction of a fluid. The system includes a switch configured to be activated, wherein activation of the switch activates an electrical control system. The system further includes a linear actuator that interfaces with the electrical control system. The electrical control system causes the linear actuator to depress a plunger, keep the plunger depressed for a predetermined time, and retract the plunger after the predetermined time. The system further includes a fluid reservoir engageable with the plunger, wherein the depression of the plunger causes fluid to be injected from the fluid reservoir into a connector and the retraction of the plunger causes fluid to be retracted into the fluid reservoir and out of the connector.

Abstract: Provided herein are sphingomyelin-containing compositions, and related nanoparticle compositions, lipid nanoparticles, including lipid raft nanoparticles. Also provided herein are related methods and uses of the nanoparticle compositions for delivering nucleic acid molecules to achieve enhanced nucleic acid expression.

Abstract: The present disclosure relates to a method, device and product for managing a plurality of users of an application system. According to example implementations of the present disclosure, a method is provided for managing a plurality of users of an application system. In the method, a group of users matching a search keyword from a requester user are determined among the plurality of users, the search keyword comprising at least one part of an identifier of a desired user. A requester layer of the requester user is determined in a tree structure comprising hierarchical relations among the plurality of users. A group of layers of the group of users are determined in the tree structure, respectively. The group of users are sorted based on the requester layer and the group of layers. With example implementations of the present disclosure, a user which the requester user is looking for may be sorted at a top place so as to be selected by the requester user.

Abstract: Aspects of the present disclosure relate to systems and methods for injection and retraction of a fluid. The system includes a switch configured to be activated, wherein activation of the switch activates an electrical control system. The system further includes a linear actuator that interfaces with the electrical control system. The electrical control system causes the linear actuator to depress a plunger, keep the plunger depressed for a predetermined time, and retract the plunger after the predetermined time. The system further includes a fluid reservoir engageable with the plunger, wherein the depression of the plunger causes fluid to be injected from the fluid reservoir into a connector and the retraction of the plunger causes fluid to be retracted into the fluid reservoir and out of the connector.

Abstract: A modular mask including a first module including a frame having two or more openings, and an attaching mechanism lining one or more edges of the two or more openings; and a second module including: a mask body having a first attaching element allowing the attaching mechanism to temporarily hold the mask body in place completely covering a first opening of the two or more openings, and a filter component having a second attaching element allowing the attaching mechanism to temporarily hold the filter component in place completely covering a second opening of the two or more openings.

Abstract: An electronic system may be configured to determine if a first-type device ID and a second-type device ID both identify a same device. To do so, the electronic system may preliminarily group a particular first-type ID with a particular second-type ID based on matching time slots and network addresses. Individual scores for each of the preliminary groups may be determined based on cardinalities associated with the time slots. Combined scores may then be determined for groups having the same first-type device ID and second-type device ID. A final analysis may be performed to confirm, with a sufficient level of confidence, whether first-type device IDs and second-type device IDs included in the preliminary groups identify the same device.

Abstract: The present disclosure relates to a method, device and product for managing a plurality of users of an application system. According to example implementations of the present disclosure, a method is provided for managing a plurality of users of an application system. In the method, a group of users matching a search keyword from a requester user are determined among the plurality of users, the search keyword comprising at least one part of an identifier of a desired user. A requester layer of the requester user is determined in a tree structure comprising hierarchical relations among the plurality of users. A group of layers of the group of users are determined in the tree structure, respectively. The group of users are sorted based on the requester layer and the group of layers. With example implementations of the present disclosure, a user which the requester user is looking for may be sorted at a top place so as to be selected by the requester user.

Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.

Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.

Abstract: An electronic device that is configured to be coupled to an alternating current (AC) power unit that includes an AC input power signal is described. The electronic device includes a reference signal generator circuit that is configured to generate a reference signal based on a direct current (DC) power source, a voltage divider circuit that is configured to scale the reference signal for application to the AC input power signal to generate a divided AC input power signal, an amplifier circuit that is configured to output a fault indication signal responsive to the divided AC input power signal, and an amplifier control circuit that is coupled to the amplifier circuit and is configured to control a fault indication signal level of the fault indication signal that is output by the amplifier circuit. Related methods and computer program products are also described.

Abstract: Disclosed are systems and methods for using one or more light sources and associated photodetectors to determine different physiological parameters of a subject based on the subject's activity state. A processor may, for example, be configured to determine, based at least in part on data received from an accelerometer at a first time, that a first physiological parameter of the subject is to be determined, to cause the light source(s) to operate in a first manner and process signals from the photodetector(s) to determine the first physiological parameter, to determine, based at least in part on data received from the accelerometer at a second time, that a second physiological parameter of the subject is to be determined, and to cause the light source(s) to operate in a second manner and process signals from the photodetector(s) to determine the second physiological parameter.

Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.

Abstract: An electronic system may be configured to determine if a first-type device ID and a second-type device ID both identify a same device. To do so, the electronic system may preliminarily group a particular first-type ID with a particular second-type ID based on matching time slots and network addresses. Individual scores for each of the preliminary groups may be determined based on cardinalities associated with the time slots. Combined scores may then be determined for groups having the same first-type device ID and second-type device ID. A final analysis may be performed to confirm, with a sufficient level of confidence, whether first-type device IDs and second-type device IDs included in the preliminary groups identify the same device.

Abstract: An electronic system may be configured to determine if a first-type device ID and a second-type device ID both identify a same device. To do so, the electronic system may preliminarily group a particular first-type ID with a particular second-type ID based on matching time slots and network addresses. Individual scores for each of the preliminary groups may be determined based on cardinalities associated with the time slots. Combined scores may then be determined for groups having the same first-type device ID and second-type device ID. A final analysis may be performed to confirm, with a sufficient level of confidence, whether first-type device IDs and second-type device IDs included in the preliminary groups identify the same device.

Abstract: An electronic device that is configured to be coupled to an alternating current (AC) power unit that includes an AC input power signal is described. The electronic device includes a reference signal generator circuit that is configured to generate a reference signal based on a direct current (DC) power source, a voltage divider circuit that is configured to scale the reference signal for application to the AC input power signal to generate a divided AC input power signal, an amplifier circuit that is configured to output a fault indication signal responsive to the divided AC input power signal, and an amplifier control circuit that is coupled to the amplifier circuit and is configured to control a fault indication signal level of the fault indication signal that is output by the amplifier circuit. Related methods and computer program products are also described.

Abstract: Disclosed is apparatus including a power source, an ECG front end, a processor, and a computer-readable medium. The ECG front end is configured to receive a signal corresponding to a cardiac waveform, and the computer-readable medium is encoded with instructions which, when executed by the processor, cause the apparatus to (a) determine a first temporal window during which a first instance of a first portion of a cardiac cycle is expected to appear in the cardiac waveform (b) at a start of the first temporal window, apply a first amount of power from the power source to the ECG front end, and (c) at an end of the first temporal window, at least partially reduce an amount of power applied from the power source to the ECG front end.

Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.

Abstract: An electronic system may be configured to determine if a first-type device ID and a second-type device ID both identify a same device. To do so, the electronic system may preliminarily group a particular first-type ID with a particular second-type ID based on matching time slots and network addresses. Individual scores for each of the preliminary groups may be determined based on cardinalities associated with the time slots. Combined scores may then be determined for groups having the same first-type device ID and second-type device ID. A final analysis may be performed to confirm, with a sufficient level of confidence, whether first-type device IDs and second-type device IDs included in the preliminary groups identify the same device.