Abstract: There is described an integrated antenna for radiating an electromagnetic beam at a wavelength ?, for example, in a range of millimeter and submillimeter waves. The antenna is integrated in a dielectric die having specific dimensions, and is configured as a dense array comprising two or more radiating elements (transmitters). The proposed array is denser than a conventional 1D or 2D array, would such a conventional array be arranged on the same dielectric die with a spacing ?/2 between its neighbouring radiating elements.

Abstract: Techniques for generating and managing, including simulating and training, deep tensor neural networks are presented. A deep tensor neural network comprises a graph of nodes connected via weighted edges. A network management component (NMC) extracts features from tensor-formatted input data based on tensor-formatted parameters. NMC evolves tensor-formatted input data based on a defined tensor-tensor layer evolution rule, the network generating output data based on evolution of the tensor-formatted input data. The network is activated by non-linear activation functions, wherein the weighted edges and non-linear activation functions operate, based on tensor-tensor functions, to evolve tensor-formatted input data. NMC trains the network based on tensor-formatted training data, comparing output training data output from the network to simulated output data, based on a defined loss function, to determine an update.

Abstract: Systems and methods for visualizing an unstained sperm cell are presented, the system comprises a data input utility that receives measured data comprising at least one quantitative phase microscopy image of the unstained sperm cell; a data processing utility comprising an image analyzer module that utilizes characteristic refractive index information of one or more organelles of the sperm cell, to process the at least one quantitative phase microscopy image and generate at least one corresponding gradient image that includes edge enhancement of the one or more organelles, and a virtual staining module that applies one or more predetermined virtual staining functions to the at least one quantitative phase microscopy image and at least one corresponding gradient image, thereby virtually stain at least one of the one or more organelles of the sperm cell and generate virtually stained image data of the sperm cell; and an output utility that utilizes the virtually stained image data of the sperm cell and generate

Abstract: The present invention provides dioxetane-based chemiluminescence probes, more specifically fluorophore-tethered dioxetane-based chemiluminescence probes and compositions thereof. The chemiluminescence probes disclosed are useful for both diagnostics and in vivo imaging.

Abstract: A method for robust state manipulation in quantum information processing comprises evanescently coupling a first waveguide to a second waveguide, the first and second waveguide having different geometries respectively; and providing waveguide geometries such that their coupling is detuned, the detuning being a function of the geometries, the detuned coupling thereby providing reliable population transfer between the first and second waveguides that is robust to fabrication and other errors. The method may be used to provide a quantum optical coupler.

Abstract: A method for constructing a quantum gate for a unitary operation in photonic quantum information processing, comprises: providing two or more waveguides, calculating segment parameters for segments within a coupling region, said one or more parameters relating to propagation constants of respective waveguides, said one or more parameters being different for said first and second waveguides respectively and thereby providing detuning between said first and second waveguides to allow for unitary operation between said first and second waveguides with high fidelity in the presence of errors, then building the segments into the respective waveguides and optically coupling the waveguides at the coupling region using the segment parameters, thereby to construct a quantum logic gate for a unitary operation.

Abstract: A new family of mononuclear organometallic complexes of a divalent metal bound to sequential tetradentate monoanionic {ONNN}-type ligands, and polymerization of cyclic esters such as lactides utilizing same are provided. Novel tetradentate monoanionic {ONNN}-type ligands usable for forming these complexes are also provided.

Abstract: A sensing system and a method utilizing same for determining and/or monitoring a presence and/or level of an analyte in a sample are provided. The sensing system is made of a nanostructure, or a plurality of nanostructures, having covalently attached thereto and a hydrogel having associated therewith a sensing moiety which selectively interacts with the analyte and being configured such that upon contacting the analyte, the nanostructure(s) exhibit a detectable change in an electrical property.

Abstract: Compounds represented by general Formulae I to IV as described herein are disclosed. Further disclosed are composition utilizing the herein disclosed compounds and using the same for the treatment of glycogen storage disorders.

Abstract: Apparatus for operating MRI is disclosed. The apparatus comprises: a control for operating an MRI scanner to carry out an MRI scan; an input for receiving first and second MRI scans respectively at the beginning and end of a predetermined time interval post contrast administration; a subtraction map former for forming a subtraction map from the first and the second MRI scans by analyzing the scans to distinguish between a population in which contrast clearance from the tissue is slower than contrast accumulation, and a population in which clearance is faster than accumulation; and an output to provide an indication of distribution of the populations. The control is configured to carry out the first scan at least five minutes and no more than twenty minutes post contrast administration and to carry out the second scan such that the predetermined time period is at least twenty minutes.

Abstract: Disclosed herein are systems and method for training neural network based decoders for decoding error correction codes, comprising obtaining a plurality of training samples comprising one or more codewords encoded using an error correction code and transmitted over a transmission channel where the training samples are subject to gradual interference over a plurality of time steps and associate the encoded codeword(s) with an interference level and a parity check syndrome at each of the plurality of time steps, using the training samples to train a neural network based decoder to decode codewords encoded using an error correction code by (1) estimating a multiplicative interference included in the encoded codeword(s) based on reverse diffusion applied to the encoded codeword(s) across the time steps, (2) computing an additive interference included in the encoded codewords based on the multiplicative interference, and (3) recovering the codeword(s) by removing the additive interference.

Abstract: Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of asymmetric point antennas formed on the substrate and excitable by a pump pulse of radiation to radiate THz radiation the point antennas having characteristic dimensions substantially smaller than wavelengths of the radiated THz; wherein the array comprises point antennas aligned in different directions.

Abstract: Apparatus and methods are described, including identifying an arrival of a first arriving S-wave emitted from a seismic source at an array (120) of sensors (129, 140) in real-time, by continuously analyzing waveforms received by the sensors (120, 140), and continuously monitoring back-azimuth and slowness data within the detected waveforms. Arrival of a first arriving P-wave emitted from the seismic source at the array (120) of sensors (129, 140) is identified, based upon the back-azimuth and slowness data. Slowness and back azimuth of the first arriving P-wave are determined, by analyzing a waveform of the P-wave, and based upon the determined slowness of the first arriving P-wave, the arrival of the first arriving S-wave at the array (120) of sensors (129, 140) is identified. Other applications are also described.

Abstract: A system including a display, an eye tracker, and a processor that executes the following: operate the display to present multiple objects to a user; operate the eye tracker to track an eye gaze of the user during the presentation of the multiple objects; calculate an estimated user preference of each of the multiple objects, by performing at least one of: (a) calculating a measure of central tendency of distances from a center of the respective object to points of the eye gaze on the respective object, wherein a higher measure of central tendency of the distances indicates a stronger user preference and vice versa, and (b) calculating a measure of central tendency of speeds of transition between temporally-consecutive ones of the points of the eye gaze, wherein a higher measure of central tendency of the speeds indicates a stronger user preference and vice versa.

Abstract: A method of scanning an object in a FOV by acquiring an MRI signal from the object at different projections of a spatially encoding magnetic field, using a plurality of receiving antennas, and reconstructing an MRI image of the object, comprising: a) at each projection, acquiring the MRI signal from the receiving antennas; b) filtering the received signal, for at least some of the projections, by applying different time windows to different components of the signal in different frequency bands, and/or received by different receiver antennas, resulting in a filtered received signal vector whose components describe the filtered received signal as a function of time, at each projection, for one or more receiver antennas; and c) reconstructing an image as a vector whose components describe a weighted or unweighted net magnetization at each voxel in the FOV, that would be expected to produce the filtered received signal vector.

Abstract: The present invention provides cationic lipids and lipid nanoparticle formulations comprising these lipids, alone or in combination with other lipids. These lipid nanoparticles may be formulated with nucleic acids to facilitate their intracellular delivery both in vitro and for therapeutic applications. The present invention also provides methods of chemical synthesis of these lipids, lipid nanoparticle preparation and formulation with nucleic acids.

Abstract: A diagnostic system includes an array of electrodes, which are coupled to a body surface of a living subject at different, respective positions in proximity to a region of interest within the body. A switched impedance network applies varying loads to the electrodes. A processor is coupled to receive and measure electrical signals from the electrodes as a function of the varying loads, and to analyze the measured signals so as to compute a local electrical characteristic of one or more locations within the region of interest.

Abstract: Method for mapping the transverse relaxation times (T2) in a magnetic resonance imaging (MRI) scan defined over a plurality of pixels, where each pixel is associated with a multicomponent T2 (mcT2) signal, comprises: accessing a computer readable medium storing an mcT2 dictionary having a set of synthetic mcT2 signals, and selecting a subset of synthetic mcT2 signals for which correlations between the synthetic mcT2 signals and pixels in the MRI scan are highest among the set. For each of at least a portion of the pixels, a respective mcT2 scan signal is fitted to the subset to provide, a plurality of T2 values for the pixel. A T2 map of the MRI scan is generated based on the T2 values.

Abstract: Compounds (small molecules) capable of interfering with an interaction between PD-1 and PD-L1, and thereby are usable in treating cancer and/or in increasing T-cell function and/or in treating a medical condition associate with PD1, PD-L1 and/or T-cell function on cells, pharmaceutical compositions and kits comprising same and uses thereof, are provided.

Abstract: A system for polarization imaging comprises an optical diffuser characterized by a point spread function (PSF), an image sensor, a spatially multiplexed polarization filter between the optical diffuser and the image sensor, and an image processor. The image processor receives signals from the image sensor and reconstructs, based on the PSF, a separate image for each polarization direction formed on the polarization filter.