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Batomorphi is a division [2] of cartilaginous fishes, commonly known as rays, this taxon is also known as the superorder Batoidea, but the 5th edition of Fishes of the World classifies it as the division Batomorphi. [3]
Taking an X-ray image with early Crookes tube apparatus, late 1800s. Radiography's origins and fluoroscopy's origins can both be traced to 8 November 1895, when German physics professor Wilhelm Conrad Röntgen discovered the X-ray and noted that, while it could pass through human tissue, it could not pass through bone or metal. [1]
1.5 mSv: 6 months Chest X-ray: 0.1 mSv: 10 days Heart: Coronary CT angiography: 12 mSv: 4 years Coronary CT calcium scan: 3 mSv: 1 year Abdominal: CT of abdomen and pelvis: 10 mSv: 3 years CT of abdomen and pelvis, low dose protocol: 3 mSv [15] 1 year CT of abdomen and pelvis, with + without radiocontrast: 20 mSv: 7 years CT Colonography: 6 mSv ...
The reference range for albumin concentrations in serum is approximately 35–50 g/L (3.5–5.0 g/dL). [5] It has a serum half-life of approximately 21 days. [6] It has a molecular mass of 66.5 kDa. The gene for albumin is located on chromosome 4 in locus 4q13.3 and mutations in this gene can result in anomalous proteins.
[1]: 221 Asters do not form during mitosis in plants. Astral rays, composed of microtubules, radiate from the centrosphere and look like a cloud. Astral rays are one variant of microtubule which comes out of the centrosome; others include kinetochore microtubules and polar microtubules.
As in other electron tomography techniques, the sample is tilted to different angles relative to the electron beam (typically every 2-3 degrees from about −60° to +60°), and an image is acquired at each angle. [5] This tilt-series of images can then be computationally reconstructed into a three-dimensional view of the object of interest. [6]
The 5' UTRs of mouse L1s contain a variable number of GC-rich tandemly repeated monomers of around 200 bp, followed by a short non-monomeric region. Human 5’ UTRs are ~900 bp in length and do not contain repeated motifs. All families of human L1s harbor in their most 5’ extremity a binding motif for the transcription factor YY1. [12]
Dual-energy X-ray absorptiometry (DXA, or DEXA [1]) is a means of measuring bone mineral density (BMD) with spectral imaging. Two X-ray beams, with different energy levels, are aimed at the patient's bones. When soft tissue absorption is subtracted, the bone mineral density (BMD) can be determined from the absorption of each beam by bone. Dual ...