Abstract: A semi-powered foot and ankle prosthesis (100) has a foot member (128) coupled to the ankle frame (112) and movable with respect to the ankle frame (112). A linear actuator (144) is coupled to and between the ankle frame (112) and the foot member (128) to move the foot member (128) with respect to the ankle frame (112). The linear actuator (144) has a drive motor (150). A locking mechanism (104) selectively engages the drive motor (150) to selectively lock movement of the drive motor (150) to resist a force on the foot member (128) from backdriving the linear actuator (144).

Abstract: In one aspect, the invention relates to 4-substituted benzoylpiperazine-1-substituted carbonyls having a structure represented by a formula: derivatives thereof, and related compounds; synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of treating disorders, e.g., various tumors and cancers, associated with ?-catenin/BCL9 protein-protein interaction dysfunction using the compounds and compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: A dynamic compression implant may be insertable into a bone, and may have a distal member with distal bone-engaging threads, a proximal member that slidably engages the distal member, and a tension member with a proximal end coupled to the proximal member, and a distal end coupled to the distal member such that, in response to motion of the distal member distally away from the proximal member, the tension member elongates and urges the distal member to move proximally toward the proximal member. The bone screw may further have an interpositional member, formed separately from the proximal member and the distal member, that cooperates with the proximal member and the distal member to form a torque transmission feature that transmits torque between the proximal member and the distal member. The dynamic compression implant may be a bone screw, intramedullary implant, or other implant that applies compression across two bone portions.

Abstract: An optical filter may reduce the frequency and/or severity of photophobic responses or for modulating circadian cycles by controlling light exposure to cells in the human eye in certain wavelengths, such as 480 nm and 590 nm, and a visual spectral response of the human eye. The optical filter may disrupt the isomerization of melanopsin in the human eye reducing the availability of the active isoform, whereas the attenuation of light weighted across the action potential spectrum of the active isoform attenuates the phototransduction cascade leading to photophobic responses. Embodiments of an optical filter are described. In one embodiment an optical filter may be configured to transmit less than a first amount of light in certain wavelengths, and to transmit more than a second amount of light weighted across the visual spectral response. Methods of use and methods of manufacturing optical filters are also described.

Abstract: Described herein are diagnostic and control fusion protein reagents and methods for use thereof in simple rapid and inexpensive hemagglutinin assays for the detection of subject antibodies directed to the SARS-CoV-2 virus.

Abstract: Asymmetric depth filtration for isolation of EVs or other desired nanoparticles from a biological or other fluid with high yield and purity in a simple, cost-effective manner. Such a method includes passing the biological fluid through the asymmetric depth filter (e.g., in a single pass) where the fluid is introduced into the filter at an entry portion, where components of the biological fluid pass through the wider entry portion of the pores before advancing towards the narrower exit portion of the pores, wherein EVs in the fluid become reversibly entrapped within the wider portion of the pores, while similarly sized soft, low-density lipids and/or proteins are pushed more deeply into the filter, so that the reversibly entrapped EVs can be released by simply reversing the flow, while the similarly sized soft low-density lipids and/or proteins remain permanently entrapped within the pores of the filter.

Abstract: Split enzyme reporter systems are disclosed for detecting an analyte in a mixture. Fragments of the split enzyme may be covalently bound to targeting domains that bind to target regions of an analyte, thereby causing formation of an active complex. Some split enzyme reporter systems can be used to detect an analyte without the use of analyte immobilization, blocking, or wash steps. Some reporter systems also enable rapid detection of the analyte of interest.

Abstract: A ventilation system having a mask, a blowing assembly, and a processor. The mask has a mask body and a pressure sensor operatively associated with the mask body and configured to measure pressure within the mask. The mask body defines an inlet opening and a plurality of leak openings. The blowing assembly is positioned in fluid communication with the inlet opening of the mask body and configured to direct air to the inlet opening of the mask body. The processor is positioned in operative communication with the blowing assembly and the pressure sensor of the mask. The processor is configured to selectively control the blowing assembly based upon at least the measured pressure within the mask.

Abstract: The present disclosure is concerned with benzimidazole compounds and methods of using these compounds for the treatment of hepatitis (e.g., hepatitis C), RNA virus infections (e.g., Zika virus, dengue virus, Powassan virus, Chikungunya virus, Enterovirus, respiratory syntactical virus (RSV), Rift Valley fever, Influenza virus, Tacaribe virus, Mayaro virus, West Nile virus, yellow fever virus, and coronavirus), and disorders of uncontrolled cellular proliferation (e.g., cancer). This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Described herein are fluid complex coacervates that produce solid adhesives in situ. Oppositely charged polyelectrolytes were designed to form fluid adhesive complex coacervates at ionic strengths higher than the ionic strength of the application site, but an insoluble adhesive solid or gel at the application site. When the fluid, high ionic strength adhesive complex coacervates are introduced into the lower ionic strength application site, the fluid complex coacervate is converted to a an adhesive solid or gel as the salt concentration in the complex coacervate equilibrates to the application site salt concentration. In one embodiment, the fluid complex coacervates are designed to solidify in situ at physiological ionic strength and have numerous medical applications. In other aspects, the fluid complex coacervates can be used in aqueous environment for non-medical applications.

Abstract: Processing flows and related systems and methods are disclosed. A computing system includes one or more data interfaces, one or more other components, and a controller. The one or more data interfaces are configured to provide an interface to a data source. The one or more other components include one or more controller plugins, one or more processing nodes, or both the one or more controller plugins and the one or more processing nodes. The controller is configured to manage interactions between the one or more data interfaces and the one or more other components and enable a user to chain together the one or more data interfaces and the one or more other components according to one or more flows. The one or more controller plugins are configured to provide results of the one or more flows to one of a user interface and a system interface.

Abstract: In one aspect, the invention relates to cyclopeptides and methods of using the disclosed cyclopeptides to treat bacterial infections due to, for example, Gram-negative pathogens. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Disclosed herein is a robotic ankle foot prosthesis that replicates the key biomechanical functions of the biological ankle and toe joints while matching the weight, size, and battery life of passive microprocessor-controlled prostheses. A single actuator powers the ankle and toe joints. The mechanism maximizes the mechanical energy regeneration during walking while imitating the physiological features of energy injection by way of the ankle joint and energy dissipation by way of the toe joint.

Abstract: The present disclosure provides systems and methods for separating one or more analytes within a fluid mixture, and characterizing and/or detecting properties associated with the one or more analytes. In some embodiments, the systems provided herein contain a dielectrophoresis device, such as a gradient insulator-based dielectrophoresis device (g-iDEP). The present disclosure provides systems and methods for separating and characterizing analytes using particle or nanoparticle tracking analysis (NTA). NTA offers various advantages because, particle size and concentration can be calculated in real time, allowing label-free and simultaneous characterization and separation of samples with mixed and unknown analytes.

Abstract: A tether assembly may be attached to a bone to correct a rotational deformity. The bone may have a growth plate that separates a first section of the bone from a second section of the bone. The tether assembly may have a tether member with a first end, a second end, and a central portion extending between the first end and the second end. The first end may have a closed outer wall that defines and fully bounds a first aperture. The second end may have an open outer wall that defines and partially bounds a second aperture. The open outer wall may define a slot in communication with the second aperture. The first and second ends may be securable to the first and second sections of the bone via coupling members inserted through the first and second apertures and anchored in the first and second sections, respectively.

Abstract: A trauma gurney includes a base connected to a frame by a vertical adjustment mechanism. The base is configured that it can be maneuvered over a receiving table. The frame holds a detachable platform suitable for the positioning of a patient thereon. Actuation of the adjustment mechanism allows the frame to be lowered and the patient platform to be detached. The patient platform is configured to be non-interfering with various procedures such as MRI procedures so the patient platform can remain with the patient after the patient has been transferred without adverse effects to the procedures. The patient platform can also be reattached to the frame after it has been removed. The trauma gurney beneficially allows a patient to be transferred from the gurney to another surface, such as for imaging, without requiring a conventional lateral transfer. Similarly, the trauma gurney allows a patient to be transferred back to the gurney.

Abstract: Described herein are methods and compositions useful in detecting, diagnosing and treating small cell lung cancer. Transgenic animal models and cell lines are disclosed for the study of a small cell lung cancer subtype. Methods of screening and identifying active agents for the treatment of a small cell lung cancer subtype as well as methods of identifying patients susceptible to treatment with aurora kinase inhibitors are also provided.

Abstract: A bone screw may be insertable into a bone. The bone screw may have a distal member with bone-engaging threads, a proximal member configured to slidably engage the distal member, and a tension member with a proximal end coupled to the proximal member, and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member.

Abstract: Surface-engineered immune cells, such as natural killer cells, grafted with targeting moiety-drug complexes. The present invention combines chemotherapy and immunotherapy by engineering the immune cells to target specific tumor cells through antigen recognition and deliver potent chemotherapeutic agents, thereby destroying the tumor cells. The surface-engineered immune cells may be prepared using a one-step method. The present invention also provides kits for preparing the surface-engineered immune cells.

Abstract: A method for facilitating rapid genome sequence analysis includes accessing an output stream of an alignment process that includes aligned reads of a biological sequence that are aligned to a reference genome. The method also includes distributing the aligned reads to a plurality of computing nodes based on genomic position. Each of the plurality of computing nodes is assigned to a separate data bin of a plurality of data bins associated with genomic position. The method also includes, for at least one aligned read determined to overlap separate data bins of the plurality of data bins, duplicating the at least one aligned read and distributing the at least one aligned read to separate computing nodes of the plurality of computing nodes that are assigned to the separate data bins.