While the principle of immune privilege in the central nervous system (CNS) still holds true, the role of the immune system in the CNS has been revisited over the recent years. This redefining of immune privilege in the brain is a result of the recent re-discovery of the extensive CNS ...
addresses in a general way the historical invention of Nuclear Magnetic Resonance and its general aspects and characteristics: sensitivity and its consequences, nature of the interactions, observation methods, sophistications, longitudinal and transverse relaxation, and principle of Magnetic Resonance Imaging...
An ideal imaging system should supply the complete data (time, location) about the emission of a gamma quantum in order to allow conclusions to be drawn about the tissue on the basis of the tracer principle. In themselves, scintillation detectors for gamma quanta are nonimaging systems because ...
CT特殊检查方法基本术语(Basic terms of CT special examination method) CT examines the noun interpretation 1. Thin layer scanning: the thickness of the scanning layer is less than 5mm; General CT or single-layer spiral CT can reach 1.0 mm, multi-slice spiral CT can reach 0.5mm. Advantages: ...
我认为它是看见什么的乐趣我的父亲是象当他是10年时。[translate] aThe basic principle and process of fault diagnosis module is shown in Fig.5. 故障诊断模块的基本原则和过程显示在。[translate]
Figure 1. Principle of strain elastography. When very slight pressure (approximately 1%; e.g., for a typical breast depth of 3 cm, a compression of 1% would be 0.3 mm) is applied to tissue with a probe in the beam direction, the majority of the displacement will be in the direction ...
It was shown that some psychotropic drugs had EEG effects opposite to the EEG effects of the mental disorders treated with these drugs (key–lock principle). A parameter closely measuring the local metabolic activity and named concordance was invented28 and was successfully used for predicting the ...
CT特殊检查方法基本术语(BasictermsofCTspecialexamination method) CTexaminesthenouninterpretation 1.Thinlayerscanning:thethicknessofthescanninglayeris lessthan5mm;GeneralCTorsingle-layerspiralCTcanreach 1.0mm,multi-slicespiralCTcanreach0.5mm. Advantages:reducethepartialvolumeeffect,andactually reflectthestructureof...
The lecture will review the basics of ultrasound transmission, characteristics of sound waves, behaviour of ultrasound at acous- tic boundaries, as well as the resolution and penetration of ultra- sound beam in body tissues. The Doppler effect and the Doppler principle, as well as the time-...
The brain's processes underlying goal pursuit fit the conventional definition of motivation.) PRINCIPLE 1: GOAL COMMITMENTS DETERMINE ATTENTIONAL FOCUS, RECALL, THOUGHT AND DREAM CONTENT, AND BEHAVIORAL FOLLOW-THROUGH An individual's commitments to particular goals sensitize the indi-...