Abstract: New algorithms to estimate cardiovascular indices by analysis of the arterial blood pressure (ABP) signal. The invention comprises recording and identification of cardiovascular descriptors (including ABP signal, diastolic pressure, systolic pressure, pulse pressure, and end systole), calculation of cardiovascular system parameters, and calculation of aortic blood flow, stroke volume, cardiac output, total peripheral resistance, and characteristic time constant.

Abstract: A method for detecting object collisions in a simulation, which includes identifying a plurality of objects moving along a path within a simulation area, and defining a grid comprising defined regions which individually define a region within which any of the plurality of objects could potentially occupy. For each of the objects, the method further includes identifying which of the defined regions that each of the plurality of object occupies for at least a portion of a time step, and for each of the objects, determining an associated potential collision set by identifying objects of the plurality of objects which occupy common regions of the defined regions during any portion of the time step. In addition, for each of the objects, the method further includes determining an actual collision set comprising objects with which a given object will collide during the time step based upon location parameters of objects included in the potential collision set.

Abstract: A method for use in computer graphics includes receiving data defining an explicit surface representation of three-dimensional (3D) geometry and casting a ray into the explicit surface representation. For each point where the ray intersects the explicit surface, a direction of the ray is compared to a direction of a surface normal of the explicit surface at that point, and then a count is incremented or decremented based on a first rule that uses a result of the comparison at that point. Then, for one or more voxels corresponding to the ray, data is generated for each voxel that indicates the voxel is either inside or outside of the explicit surface based on a second rule that uses a value of the count at that voxel.

Abstract: Controlling an event in a virtual environment is disclosed. A video image from one or more video cameras is received. A video enhanced script is executed to display the virtual environment in a video display within a web browser. An event in the virtual environment is controlled based on the video image. The video enhanced script is configured to communicate with a web browser extension module.

Abstract: A method for use in computer graphics includes receiving data representative of a plurality of particles. For each particle, the method further includes calculating a time at which a collision will occur based on a current trajectory of the particle. For pairs of particles that will collide with each other, another operation includes changing a direction of the particles to avoid a collision, wherein the changed directions approximate directions that would result from the collision. For particles in static contact, another operation includes allowing particles to push each other without bouncing. For particles in static contact that were previously moved by being pushed, the method also does not allow the particles to move during future collisions occurring during a time step.

Abstract: A method for use in rendering includes receiving an input particle system, an instancing program, and a number indicating a maximum number of particles to be stored in memory, providing an input particle count representative of at least a portion of the input particle system to at least one operator for the instancing program, running the at least one operator in a prediction mode to generate an output particle count, comparing the output particle count to the number indicating a maximum number of particles to be stored in memory, and spatially splitting a bounding box representative of the input particle count in response to the output particle count being greater than the number indicating a maximum number of particles to be stored in memory.

Abstract: A data visualization system and method are provided herein.

Abstract: A data visualization system and method are provided herein.

Abstract: The systems and methods described herein enable reliable estimation of cardiovascular indices on real-time, non-invasive or minimally-invasive, and beat-to-beat basis. Cardiovascular indices which can be estimated include), stroke volume (SV), without being limited to, cardiac output (CO and total peripheral resistance (TPR). In various embodiments, one or more of these indices are estimated continuously, on a beat-to-beat basis, using peripheral arterial blood pressure (ABP) waveforms and certain parameters derived from the peripheral ABP waveforms. The derived parameters are substantially insensitive to distortions of the ABP waveform arising from tapered arterial branches throughout the arterial tree. The methods described herein can provide a more accurate and reliable estimate of hemodynamic parameters than existing techniques.

Abstract: Controlling an event in a virtual environment is disclosed. A video image from one or more video cameras is received. A video enhanced script is executed to display the virtual environment in a video display within a web browser. An event in the virtual environment is controlled based on the video image. The video enhanced script is configured to communicate with a web browser extension module.

Abstract: A method for detecting object collisions in a simulation, which includes identifying a plurality of objects moving along a path within a simulation area, and defining a grid comprising defined regions which individually define a region within which any of the plurality of objects could potentially occupy. For each of the objects, the method further includes identifying which of the defined regions that each of the plurality of object occupies for at least a portion of a time step, and for each of the objects, determining an associated potential collision set by identifying objects of the plurality of objects which occupy common regions of the defined regions during any portion of the time step. In addition, for each of the objects, the method further includes determining an actual collision set comprising objects with which a given object will collide during the time step based upon location parameters of objects included in the potential collision set.

Abstract: Controlling an event in a virtual environment is disclosed. A video image from one or more video cameras is received. A video enhanced script is executed to display the virtual environment in a video display within a web browser. An event in the virtual environment is controlled based on the video image. The video enhanced script is configured to communicate with a web browser extension module.

Abstract: A method for use in computer graphics includes receiving data representative of a plurality of particles. For each particle, the method further includes calculating a time at which a collision will occur based on a current trajectory of the particle. For pairs of particles that will collide with each other, another operation includes changing a direction of the particles to avoid a collision, wherein the changed directions approximate directions that would result from the collision. For particles in static contact, another operation includes allowing particles to push each other without bouncing. For particles in static contact that were previously moved by being pushed, the method also does not allow the particles to move during future collisions occurring during a time step.

Abstract: A method for use in computer graphics includes receiving data defining an explicit surface representation of three-dimensional (3D) geometry and casting a ray into the explicit surface representation. For each point where the ray intersects the explicit surface, a direction of the ray is compared to a direction of a surface normal of the explicit surface at that point, and then a count is incremented or decremented based on a first rule that uses a result of the comparison at that point. Then, for one or more voxels corresponding to the ray, data is generated for each voxel that indicates the voxel is either inside or outside of the explicit surface based on a second rule that uses a value of the count at that voxel.

Abstract: A method for use in rendering includes receiving an input particle system, an instancing program, and a number indicating a maximum number of particles to be stored in memory, providing an input particle count representative of at least a portion of the input particle system to at least one operator for the instancing program, running the at least one operator in a prediction mode to generate an output particle count, comparing the output particle count to the number indicating a maximum number of particles to be stored in memory, and spatially splitting a bounding box representative of the input particle count in response to the output particle count being greater than the number indicating a maximum number of particles to be stored in memory.

Abstract: An aminocarboxylic acid chelating agent, preferably EDTA, or a salt thereof has been found to be useful for inhibiting particulate formation in piperacillin/tazobactam parenteral combinations. The composition may also contain a buffer, preferably citrate, and optionally an aminoglycoside. The product may be in the form of a frozen composition that can be thawed for use. The product may also be in the form of a cryodesiccated powder that can be reconstituted by addition of an aqueous vehicle to reform a solution.

Abstract: The invention provides a pharmaceutical composition comprising piperacillin, tazobactam, an aminocarboxylic acid, and a buffer in a sodium lactate diluent. The invention further relates to a method of treating a bacterial infection and an LR condition in a human which comprises administering to said human an effective amount of a pharmaceutical composition comprising piperacillin, tazobactam, an aminocarboxylic acid, and a buffer in a sodium lactate diluent.

Abstract: Provided herein are methods for preliminary analysis of suspect samples, which can be used in triaging possible contaminated sites (e.g., sites contaminated or thought to be contaminated by biowarfare agents). In some embodiments, the methods involve testing for the presence of protein in the suspect sample; optionally, the sample can also be tested for the presence of sugar, and/or for pH determination. Specific embodiment methods are carried out in tubes or other reaction vessels, others are carried out in a pad format, and still others are carried out in a test strip format. Kits for carrying out the described methods are also provided.

Abstract: Provided herein are methods for preliminary analysis of suspect samples, which can be used in triaging possible contaminated sites (e.g., sites contaminated or thought to be contaminated by biowarfare agents). In some embodiments, the methods involve testing for the presence of protein in the suspect sample; optionally, the sample can also be tested for the presence of sugar, and/or for pH determination. Specific embodiment methods are carried out in tubes or other reaction vessels, others are carried out in a pad format, and still others are carried out in a test strip format. Kits for carrying out the described methods are also provided.

Abstract: Provided herein are methods for preliminary analysis of suspect samples, which can be used in triaging possible contaminated sites (e.g., sites contaminated or thought to be contaminated by biowarfare agents). In some embodiments, the methods involve testing for the presence of protein in the suspect sample; optionally, the sample can also be tested for the presence of sugar, and/or for pH determination. Specific embodiment methods are carried out in tubes or other reaction vessels, others are carried out in a pad format, and still others are carried out in a test strip format. Kits for carrying out the described methods are also provided.