Abstract: Disclosed are a system and method for quantifying changes in animal posture from video recordings of multiple interacting animals. Also disclosed are a system and method for training a posture identification algorithm efficiently with minimal human effort and evaluating the posture of millions of animal images. The disclosed process employs video recordings of behaving animals to produce a full set of geometrical coordinates for each body part over time. Inter alia, the disclosed system should be useful for organizations interested in doing large small-molecule screens to find drugs that affect the behavior of animals, and for those investigating new behavioral diagnostics for human patients. The disclosed system allows one to record video of animals and then automatically calculate the position of each body part over time. The output of this calculation can be used for simple analysis of the amount of movement for specific body parts, or part of a more complex scheme for measuring behaviors.
Type:
Application
Filed:
October 4, 2019
Publication date:
November 18, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Joshua W. Shaevitz, Mala Murthy, Talmo D. Pereira, Diego E. Aldarondo
Abstract: Disclosed is a high-throughput method and system for mapping or screening biomolecular interactions, where the method includes providing a plurality of cells, or in some examples purified proteins themselves, expressing a phase separation or aggregation system, including those capable of being controlled by at least one wavelength of light, with the phase separation or aggregation system comprising a target protein possibly fused to a fluorescent protein. The cells are placed in a well, and chemical and/or biological agent are then introduced to the well.
Type:
Application
Filed:
September 19, 2019
Publication date:
November 11, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Cliff Brangwynne, Dan Bracha, Chanelle Jumper, Paul Ackerman
Abstract: Systems, methods, and apparatuses provide a scalable framework for analyzing queuing and transient congestion in network switches. The system reports which flows contributed to the queue buildup and enables direct per-packet action in the data plane to prevent transient congestion. The system may be configured to analyze queuing in legacy network switches.
Type:
Grant
Filed:
April 10, 2019
Date of Patent:
November 9, 2021
Assignees:
AT&T Intellectual Property I, L.P., The Trustees of Princeton University
Inventors:
Yaron Koral, Simon Tse, Steven A. Monetti, Tzuu-Yi Wang, Jennifer Rexford, Xiaoqi Chen, Shir Landau Feibish
Abstract: According to various embodiments, a system for stabilizing operation of semiconductor laser frequency combs via optical feedback is disclosed. The system includes an external cavity having a beam-splitter, polarizer, and mirror or partially reflective element mounted on a translational stage. The external cavity and a laser facet of the semiconductor laser form an external optical resonator for coupling light to a laser cavity.
Type:
Application
Filed:
April 30, 2021
Publication date:
November 4, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Chu C. Teng, Jonas Westberg, Gerard Wysocki
Abstract: Described herein is a novel, highly efficient system to remove erythrocytes and purify leukocytes would raise the quality of UCB and other transplant grafts, thereby significantly improving patient outcomes.
Type:
Grant
Filed:
November 16, 2015
Date of Patent:
October 12, 2021
Assignees:
University of Maryland, Baltimore, The Trustees of Princeton University
Inventors:
Curt I. Civin, James C. Sturm, Robert H. Austin
Abstract: Disclosed is a design and implementation of a Wi-Fi based network (e.g., roadside hotspot network designed to operate at vehicular speeds and picocell, meter-sized, cells). The disclosed access points (APs) make delivery decisions to the vehicular clients they serve at millisecond-level granularities, exploiting path diversity in roadside networks. In order to accomplish this, buffer management algorithms are employed that allow participating APs to manage each other's queues, rapidly quenching each other's transmissions and flushing each other's queues. An example embodiment of the disclosed approach employs an eight-AP network alongside a nearby road, and was evaluated with mobile clients moving at up to 25 mph. Depending on mobility speed, the disclosed approach achieves a 2.4-4.7 times TCP throughput improvement over a baseline fast handover protocol that captures the state of the art in Wi-Fi roaming, the IEEE 802.11k and 802.11r standards.
Abstract: A method of performing time series prediction by improper learning comprising calculating a plurality of filters based on a symmetric matrix and generating a mapping term based on a time series input and a function. The method may include comprising iteratively: transforming the function using the calculated plurality of filters; predicting an interim output using the transformed function and the mapping term; computing an error of the interim output based on a known output; and updating the mapping term based on the computed error. The method may include generating the mapping term through iterations over a predetermined interval and performing a time series prediction using the mapping term generated over the iterations.
Abstract: Immunogenic compositions and prophylactic or therapeutic vaccines for use in protecting and treating against human cytomegalovirus (CMV) are disclosed. Subunit vaccines comprising a human CMV protein complex comprising pUL128 or pUL130, and nucleic acid vaccines comprising at least one nucleic acid encoding a CMV protein complex comprising pUL128 or pUL130 are described. Also disclosed are therapeutic antibodies reactive against a CMV protein complex comprising pUL128 or pUL130, as well as methods for screening compounds that inhibit CMV infection of epithelial and endothelial cells, methods for immunizing a subject against CMV infection, methods for determining the capability of neutralizing antibodies to inhibit CMV infection of cell types other than fibroblasts, and methods of diminishing an CMV infection.
Abstract: A protein construct including a gene encoding a light-sensitive protein fused to at least one of either a low complexity sequence, an intrinsically disordered protein region (IDR), or a repeating sequence of a linker and another gene encoding a light-sensitive protein. Among the many different possibilities contemplated, the protein construct may also advantageously include cleavage tags. This protein construct may be utilized for a variety of functions, including a method for protein purification, which requires introducing the protein construct into a living cell, and inducing the formation of clusters by irradiating the construct with light. The method may also advantageously include cleaving a target protein from an IDR, and separating the clusters via centrifuge. A kit for practicing in vivo aggregation or liquid-liquid phase separation is also included, the kit including the protein construct and a light source capable of producing a wavelength that the light-sensitive protein will respond to.
Type:
Application
Filed:
June 4, 2021
Publication date:
September 23, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Cliff Brangwynne, Jared Toettcher, Yongdae Shin
Abstract: Various embodiments comprise systems, methods, architectures, mechanisms, apparatus, and improvements thereof for in-memory computing using charge-domain circuit operation to provide energy efficient, high speed, capacitor-based in-memory computing. Various embodiments contemplate controlling input signal presentation within in-memory computing structures/macros in accordance with predefined or dynamic switch selection criteria to reduce energy consumption associated with charging and/or discharging summing capacitors during reset and evaluation operating modes of multiplying bit-cells (M-BCs).
Abstract: A system and method for reversibly controlling clustering of proteins around an engineered multivalent nucleus is disclosed. The system and method utilize clustering, which may be controlled by light activation or deactivation. The system and method enable the spatiotemporal control of protein supramolecular assemblies, including liquid-like droplets under some conditions, and solid-like gels under other conditions. The system and method can be utilized for segregating or locally concentrating desired proteins and/or RNA in cells or cell lysate, which may be useful for protein purification purposes, or for assembling single or multiple membraneless bodies within specific sub-regions of the cells. These synthetically assembled bodies may recruit both transgenic and endogenic proteins and other biomolecules, thus can be linked to affect and even trigger a plethora of cellular processes, including both physiological and pathological (e.g., protein aggregation) processes.
Abstract: Disclosed is a system and method for shaped incoherent light for control (SILC). More particularly, disclosed is a method for controlling the evolution of photo-responsive systems (including chemical species, biochemical species or material compounds) using a device capable of producing shaped incoherent light for such control. The disclosed device integrates a polychromatic incoherent source in an adaptive feedback control loop.
Type:
Application
Filed:
May 17, 2019
Publication date:
September 16, 2021
Applicant:
The Trustees of Princeton University
Inventors:
François Laforge, Herschel Rabitz, Howard Y. Bell, Joshua E. Collins
Abstract: Methods, devices, and systems are described for storing and transferring quantum information. An example device may comprise at least one semiconducting layer, one or more conducting layers configured to define at least two quantum states in the at least one semiconducting layer and confine an electron in or more of the at least two quantum states, and a magnetic field source configured to generate an inhomogeneous magnetic field. The inhomogeneous magnetic field may cause a first coupling of an electric charge state of the electron and a spin state of the electron. The device may comprise a resonator configured to confine a photon. An electric-dipole interaction may cause a second coupling of an electric charge state of the electron to an electric field of the photon.
Abstract: Janus particles, including biodegradable, biocompatible, anisotropic, amphiphilic Janus nanocolloids, and their use in stabilizing emulsions and cleansing are described.
Type:
Application
Filed:
October 2, 2017
Publication date:
September 9, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Rodney D. PRIESTLEY, Robert K. PRUD'HOMME, Sunny NIU
Abstract: According to various embodiments, an all-optical thresholder device is disclosed. The all-optical thresholder device includes a Mach-Zehnder interferometer (MZI) coupled to a Mach-Zehnder coupler (MZC). The MZI includes at least one microring resonator (MRR) and a first tunable element, where the MRR further includes a second tunable element. The MZC includes a third tunable element. The first, second, and third tunable elements are configured to control biases of the all-optical thresholder device to achieve a desired power transfer function.
Type:
Application
Filed:
January 29, 2020
Publication date:
September 9, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Chaoran Huang, Thomas Ferreira De Lima, Alexander Tait, Siamak Abbaslou, Aashu Jha, Bhavin Shastri, Paul R. Prucnal, Mitchell A. Nahmias, Hsuan-Tung Peng
Abstract: Various embodiments comprise systems, methods, architectures, mechanisms or apparatus for providing programmable or pre-programmed in-memory computing operations.
Type:
Application
Filed:
June 18, 2019
Publication date:
September 2, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Naveen VERMA, Hossein VALAVI, Hongyang JAI
Abstract: A system and method for modulating stress granule assembly, utilizing a protein construct that has a cell penetrating protein fused to one or more proteins that can bind with an NTF2-like domain of a G3BP protein. By configuring the protein construct with an appropriate number of proteins that being with NTF2-like domains, stress granule assembly can be upregulated or downregulated as needed to treat patients.
Type:
Application
Filed:
July 12, 2019
Publication date:
September 2, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Cliff Brangwynne, Victoria Drake, David Sanders
Abstract: Disclosed herein is an all-digital phase and timing correction procedure for coherent averaging in dual-comb and multiheterodyne spectroscopy—applicable to any dual-comb spectroscopy setup. It can account for large frequency/phase instabilities of the used sources, yielding a significant reduction of the noise pedestal and an increase in signal-to-noise ratio (SNR) of the radio frequency (RF) beat notes. This technique is computationally efficient and can be conveniently implemented either as a post-processing algorithm or in a real-time data acquisition and processing platform without the necessity of adding any additional optical elements to the dual-comb spectroscopy system. By implementing this technique, the performance of any comb- or comb-like-source-based DCS system with a sufficient degree of mutual coherence between the optical modes can be improved in terms of SNR and number of spectroscopically-usable RF beat notes.
Type:
Application
Filed:
April 26, 2021
Publication date:
August 26, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Lukasz STERCZEWSKI, Jonas WESTBERG, Gerard WYSOCKI
Abstract: Hydrophilic molecules such as biologics, which can include peptides, proteins, and other biologically-derived materials, can be used as therapeutic agents in medical applications. They can face administration challenges because of poor membrane permeability and rapid clearance from the blood stream. Methods for the formation of a core-shell-brush nanoparticle from an A-B-C triblock copolymer are set forth. A hydrophilic core can contain the biologic and the C Block of the copolymer. The shell can be comprised of the precipitated B Block, and the A Block can form a stabilizing brush layer. The particles can be assembled by sequential precipitations under defined mixing conditions. Presented herein are methods to tune release based on process parameters during particle assembly and triblock characteristics.
Type:
Application
Filed:
July 19, 2019
Publication date:
August 26, 2021
Applicant:
The Trustees of Princeton University
Inventors:
Robert K. PRUD'HOMME, Chester E. MARKWALTER, Robert F. PAGELS