Transducer Scan
Transducer Scan - Related Videos
08:12
Pressure Transducer: Calibration Using a Pitot-static Tube
0 Views •
2023
Source: Shreyas Narsipur, Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC Fluid pressure is an important flow characteristic that is required to determine the aerodynamics of a system. One of the oldest and still existing pressure measurement systems is the manometer due to its accuracy and simplicity of operation. The manometer is generally a U-shaped glass tube that is partially filled with liquid, as shown in Figure 1. The U-tube manometer requires no...
02:28
Leaky Scanning
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2020
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
08:46
Production of Lentiviral Vectors for Transducing Cells from the Central Nervous System
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Cited by 44 •
2012
In this protocol we describe production, purification and titration of lentiviral vectors. We provide an example of lentiviral vector-mediated gene delivery in primary cultured neurons and astrocytes. Our methods may also apply to other cell types in vitro and in vivo.
07:12
Alphavirus Transducing System: Tools for Visualizing Infection in Mosquito Vectors
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Cited by 11 •
2010
Methods for using alphavirus transducing systems to express fluorescent reporters in vitro and in adult mosquitoes are described. This technique may be adapted to express any protein of interest in lieu of or in addition to a reporter.
01:31
Transducer Mechanism: Nuclear Receptors
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2023
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors. About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
FAQs
Image formation depends on acoustic contrasts within the sample. When emitted sound encounters a boundary between tissues with different acoustic properties, part of the energy returns as an echo. The system uses these returning signals to distinguish internal interfaces, making boundaries between biological structures visible in the resulting image.
A transducer performs two linked tasks: it sends high-frequency sound into tissue and detects energy that returns. Those signals are not the final image; processing converts them into a visual representation of internal structure. This conversion links the physical interaction of waves with tissue to an interpretable biological observation.
Transducer scanning can produce either two-dimensional or three-dimensional views, depending on how the processed signals are represented. A two-dimensional image provides a planar depiction of structures, whereas a three-dimensional image represents them spatially. This choice helps investigators examine biological organization at the level most appropriate to the study.
One important advantage is that the approach does not expose specimens to ionizing radiation. That makes repeated observation possible, which is valuable when anatomy or development must be followed over time. The same feature supports both biological investigations and clinical research where serial examination of soft tissues or embryos is relevant.
A basic scan follows a signal-to-image sequence. The transducer directs high-frequency sound into the biological sample or organism, receives returning echoes from tissue boundaries, and passes the returned energy to a processing system. The processed signals then form a two-dimensional or three-dimensional image for examination of internal structures.
For developmental biology, the method can support examination of developing embryos without requiring ionizing radiation exposure. Researchers can use the resulting images to observe anatomical features and to conduct repeated examinations when developmental change is important. Its noninvasive character therefore connects structural imaging with longitudinal developmental studies.
Supported targets include organs, soft tissues, developing embryos, and blood flow. This range makes the technique useful beyond a single anatomical setting: investigators can study general internal structure, developmental anatomy, or circulatory behavior, while clinical researchers can apply the same imaging approach to soft-tissue assessment.
Transducer scanning is especially relevant when a study requires internal anatomical information without invasive sampling or ionizing radiation. In biology, that supports anatomical assessment and developmental studies; in clinical research, it provides a way to examine organs, soft tissues, and blood flow. Repeated observations can support studies that track changes across examinations.