Abstract: A multi-layered lighted painting and etching easel assembly includes an easel portion having length-adjustable frame legs extending and being wedged between a floor and ceiling. The easel portion includes lower support blocks for receiving an edge of a transparent easel workpiece. The easel portion includes lower retaining blocks configured to receive an edge of the easel workpiece and is slidably and lockingly movable in and out of the lower notch. The assembly includes a holder portion displaced from the easel portion that includes a holding plate that defines a window. The holding plate may include a bottom face having support rods extending forwardly for supporting the workpiece(s). The easel assembly includes a display portion situated rearwardly of the holder portion, and that includes a light panel mounted to a rear of the holding plate that is operable to direct light toward the window and through the workpieces when energized.

Abstract: A composition that binds to an anti-CD38 antibody includes a specific sequence of a recombinant soluble form of an extracellular domain of CD38 and/or a fragment thereof that interferes with binding activity of the anti-CD38 antibody. The composition can be included in a kit for bio-monitoring research and diagnostic assays. The composition can be used to neutralize an anti-CD38 antibody in a sample and/or to select a suitable red blood cell unit for a patient treated with anti-CD38 antibodies.

Abstract: A composition that binds to an anti-CD47 antibody includes a specific sequence of a recombinant soluble form of an extracellular domain of CD47 and/or a fragment thereof that interferes with binding activity of the anti-CD47 antibody. The composition can be included in a kit for bio-monitoring research and diagnostic assays. The composition can be used to neutralize an anti-CD47 antibody in a sample and/or to select a suitable red blood cell unit for a patient treated with anti-CD47 antibodies.

Abstract: Implementations of the disclosure relate to apparatus and methods for supporting and testing respirators during testing operations. In one aspect, the respirators are tested to determine if the respirators meet a testing standard. In one implementation, a test fixture for supporting respirators during testing operations includes a fixture. The fixture includes a base portion, and a first protrusion including one or more first mounting surfaces disposed above the base portion. The fixture includes a second protrusion including one or more second mounting surfaces disposed above the base portion, and a backside surface that opposes the first protrusion and the second protrusion. The fixture includes a cavity disposed between the first protrusion and the second protrusion, and an aperture extending from the cavity and to the backside surface.

Abstract: A rotating painting apparatus includes a plurality of painting stations rotatably mounted to a base plate and each station having 2, 3, 4, or more faces on which to apply paint. A painting station includes a drive shaft rotatably coupled to the base plate. Rotation of the drive shaft causes the painting station to swivel, i.e., to rotate. The stretched frame member includes upstanding side support members extending from the bottom wall and about which a length of canvas may be stretched to form a painting station having two faces (front and rear), three faces (triangular), or four faces (cube), and so on. A chain drive operated by a drive motor enables all of the frame assemblies to be rotated together. The apparatus may include a motion sensor operable to actuate the motor and drive shaft to cause rotation when motion is detected.

Abstract: An etching easel apparatus includes an easel backboard having a board front side, a board back side, and connecting edges that, together, define a recessed area. A bottom lip is coupled to the board bottom edge of the easel backboard portion and extends perpendicularly from the board front side and laterally between the left and right edges. A top lip is pivotally coupled to the board top edge of the easel backboard portion and extends perpendicularly from the board front side. The top lip is configured to secure an etching plate against the board front side and the bottom lip. A wall mount is coupled to the board back side of the easel backboard portion and has a pair of mounting apertures configured to receive hardware inserted into a wall. The apparatus includes a height adjustable table stand configured to support the backboard.

Abstract: A rotating painting apparatus includes a predetermined number of painting stations rotatably mounted to a base plate and each station having 2, 3, 4, or more faces on which to apply paint. A painting station includes a bottom wall from which a drive shaft by which the bottom wall is rotatably coupled to the base plate. Rotation of the drive shaft causes the painting station to swivel, i.e. to rotate. The stretched frame member includes upstanding side support members extending from the bottom wall and about which a length of canvas may be stretched to form a painting station having two faces (front and rear), three faces (triangular), or four faces (cube), and so on. The rotating painting apparatus may include a plurality of frame assemblies adjacent to yet separated from one another. A chain drive operated by a drive motor enables all of the frame assemblies to be rotated together.

Abstract: A display system is provided. The display system has a base, and a plurality of plates stacked on top of the base. The plates are formed of a transparent or translucent material and each plate has a marking on a top or bottom surface. The base includes a backlight that is beneath the stacked plates. When activated, the backlight provides a lighting which passes through the plurality of plates, illuminating the plates and the markings thereon.

Abstract: Embodiments of a face mask with a port configured to allow flow through the face mask at least in a direction towards a user, generally defined as an adhesive side or user side of the mask are provided, along with methods for using the same. In one embodiment, a face mask includes a breathable, flexible sheet having a first side and a second side, an adhesive disposed on a perimeter of the second side, the adhesive circumscribing a center region of the sheet and a port comprising a center region of the sheet. The port is configured to allow flow through the face mask at least in a direction towards a user without removal from the user.