While autism is highly heritable, researchers suspect both environmental and genetic factors as causes. In rare cases, autism is strongly associated with agents that cause birth defects. Controversies surround other proposed environmental causes; for example, the vaccine hypotheses have been disproven.iagnosis is based on behavior, not cause or mechanism. Under the DSM-5, autism is characterized by persistent deficits in social communication and interaction across multiple contexts, as well as restricted, repetitive patterns of behavior, interests, or activities.
Wiktionary(0.00 / 0 votes)Rate this definition: downsampling(Noun) The process of reducing the sampling rate of a signal. Downsampling. In signal processing, downsampling is the process of reducing the sampling rate of a signal. This is usually done to reduce the data rate or the size of the data.
The rationale for clamping a ventriculostomy device (EVD) is to evoid overdraining of CSF, which may lead to brain herniation. If you place the EVD below the patient, you will normally see an increase of CSF drainage, due to gravity. For this reason, most EVD protocols recommend clamping it with any changes in patient's position that may place the EVD below the patient. I also clamp when draining the cylinder, which is how I was taught.