|
Vpu
VPU may refer to: Technology * Video processing unit and visual processing unit, related to graphics processing units * Vision processing unit, a class of processor intended for accelerating machine vision tasks * Vector processing unit, a special processor architecture with features of pipelining for vector processing Other uses * Viral protein U Vpu is an accessory protein that in HIV is encoded by the ''vpu'' gene. Vpu stands for "Viral Protein U". The Vpu protein acts in the degradation of CD4 in the endoplasmic reticulum and in the enhancement of virion release from the Cell membrane, ... (Vpu), a regulatory protein found in HIV-1 * Vancouver Police Union, a trade union in Canada [Baidu] |
Viral Protein U
Vpu is an accessory protein that in HIV is encoded by the ''vpu'' gene. Vpu stands for "Viral Protein U". The Vpu protein acts in the degradation of CD4 in the endoplasmic reticulum and in the enhancement of virion release from the plasma membrane of infected cells. Vpu induces the degradation of the CD4 viral receptor and therefore participates in the general downregulation of CD4 expression during the course of HIV infection. Vpu-mediated CD4 degradation is thought to prevent CD4- Env binding in the endoplasmic reticulum to facilitate proper Env assembly into virions. It is found in the membranes of infected cells, but not the virus particles themselves. The Vpu gene is found exclusively in HIV-1 and some HIV-1-related simian immunodeficiency virus ( SIV) isolates, such as SIV, SIV, and SIV, but not in HIV-2 or the majority of SIV isolates. Structural similarities between Vpu and another small viral protein, M2, encoded by influenza A virus were first noted soon after the dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vancouver Police Union
The Vancouver Police Union (VPU) is a trade union representing 1,450 front-line police officers, jail guards and special constables of the Vancouver Police Department in Vancouver, British Columbia, Canada. History The Vancouver Police Union received its charter from the Trades and Labour Council (TLC) under the name Vancouver Police Federal Association, Local 12, on 15 July 1918, making it the second unionized police force in Canada. Unlike many other police unions, the VPU survived the backlash against police rank and file organizations following the British police strikes in 1918 and 1919, the Boston Police Strike, and the Winnipeg General Strike of 1919. Police unions were outlawed in many jurisdictions and subsequently reduced to "police associations." As a result, the VPU was the first police union certified under the new industrial relations regulatory regime in 1945, and remained one of the few rank and file police organizations that were covered by labour legislation. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vision Processing Unit
A vision processing unit (VPU) is (as of 2018) an emerging class of microprocessor; it is a specific type of AI accelerator, designed to accelerate machine vision tasks. Overview Vision processing units are distinct from video processing units (which are specialised for video encoding and decoding) in their suitability for running machine vision algorithms such as CNN (convolutional neural networks), SIFT (Scale-invariant feature transform) and similar. They may include direct interfaces to take data from cameras (bypassing any off chip buffers), and have a greater emphasis on on-chip dataflow between many parallel execution units with scratchpad memory, like a manycore DSP. But, like video processing units, they may have a focus on low precision fixed point arithmetic for image processing. Contrast with GPUs They are distinct from GPUs, which contain specialised hardware for rasterization and texture mapping (for 3D graphics), and whose memory architecture is optimi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Processing Unit
A graphics processing unit (GPU) is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles. Modern GPUs are efficient at manipulating computer graphics and image processing. Their parallel structure makes them more efficient than general-purpose central processing units (CPUs) for algorithms that process large blocks of data in parallel. In a personal computer, a GPU can be present on a video card or embedded on the motherboard. In some CPUs, they are embedded on the CPU die. In the 1970s, the term "GPU" originally stood for ''graphics processor unit'' and described a programmable processing unit independently working from the CPU and responsible for graphics manipulation and output. Later, in 1994, Sony used the term (now standing for ''graphics processing uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vector Processing Unit
In computing, a vector processor or array processor is a central processing unit (CPU) that implements an instruction set where its instructions are designed to operate efficiently and effectively on large one-dimensional arrays of data called ''vectors''. This is in contrast to scalar processors, whose instructions operate on single data items only, and in contrast to some of those same scalar processors having additional single instruction, multiple data (SIMD) or SWAR Arithmetic Units. Vector processors can greatly improve performance on certain workloads, notably numerical simulation and similar tasks. Vector processing techniques also operate in video-game console hardware and in graphics accelerators. Vector machines appeared in the early 1970s and dominated supercomputer design through the 1970s into the 1990s, notably the various Cray platforms. The rapid fall in the price-to-performance ratio of conventional microprocessor designs led to a decline in vector supercompu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HM Prison Rye Hill
HM Prison Rye Hill is a Category B men's private prison, operated by G4S. Rye Hill has exclusively housed sex offenders since 2014. The prison is next to HMP Onley and Rainsbrook Secure Training Centre, south of Rugby, in the parish of Barby, Northamptonshire, England. However, the postal address of the prison is Willoughby, Warwickshire; therefore, most sources list the prison as in Willoughby, Warwickshire. History Rye Hill Prison, which was built by Carillion opened in early 2001, and has since been operated by G4S under the Private Finance Initiative. In March 2002, two inmates serving 10-year sentences escaped from Rye Hill by hiding in the back of a delivery lorry. In April 2004, Member of Parliament Andrew Rosindell responded to the escape of a convicted murderer by calling for a review of security. At the time of his escape, the prisoner had been at University Hospital Coventry receiving a blood transfusion. In July 2005, an inspection report from Her Majesty's Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Van Parcel Unit
A van is a type of road vehicle used for transporting goods or people. Depending on the type of van, it can be bigger or smaller than a pickup truck and SUV, and bigger than a common car. There is some varying in the scope of the word across the different English-speaking countries. The smallest vans, microvans, are used for transporting either goods or people in tiny quantities. Mini MPVs, compact MPVs, and MPVs are all small vans usually used for transporting people in small quantities. Larger vans with passenger seats are used for institutional purposes, such as transporting students. Larger vans with only front seats are often used for business purposes, to carry goods and equipment. Specially-equipped vans are used by television stations as mobile studios. Postal services and courier companies use large step vans to deliver packages. Word origin and usage Van meaning a type of vehicle arose as a contraction of the word caravan. The earliest records of a van as a vehicle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
