What is redundancy crystallography?

Redundancy. Redundancy is calculated as. (number of measured reflections) / (number of unique reflections). The calculation gives the average number of independent measurements of each reflection in a crystallographic data set. Two factors, symmetry and overlap, contribute to redundancy in a crystallographic data set.

What is biochemistry crystallography?

X-ray crystallography involves the arrangement of molecules in a regular lattice by crystallization, and exposing the crystals to an x-ray beam. The regularly spaced atoms within the array will generate a unique diffraction pattern, which can be used to solve the structure of the molecule of interest.

What is Xray crystallography used for?

X-ray crystallography is a tool used for determining the atomic and molecular structure of a crystal. The underlying principle is that the crystalline atoms cause a beam of X-rays to diffract into many specific directions (Fig. 2.10).

What is protein Xray crystallography?

X-ray protein crystallography is a technique by which it is possible to determine the three dimensional positions of each atom in a protein. The result is a atomic-resolution model of a protein.

What do you need to know about reticulocyte tests?

Reticulocyte tests can also be used to monitor effectiveness of treatment for various conditions e.g. anemia. No preparation is needed for a reticulocyte count though it is advised to wear a short sleeved shirt to allow medical professionals easy access when drawing blood.

What to do with a low reticulocyte index?

Patients with an inappropriate marrow response (low reticulocyte index) may be further evaluated for nutritional deficiencies or marrow abnormalities. Always consider transfusion and/or iron supplementation in anemic patients. Have feedback about this calculator?

Is the reticulocyte index the same as the absolute count?

The laboratory “reticulocyte count” is actually a percentage. The absolute count corrects for the level of anemia, and the reticulocyte index determines if the reticulocyte count is appropriate for the level of anemia. Please fill out required fields.

What kind of reticle does a Trijicon ACOG have?

Trijicon ACOG’s will have this type of reticle, as will most 1-4x powered scopes designed for use on an AR platform. Many of them will have a crosshair dead center, and some will even have some sort of circle or semicircle around it to draw the shooter’s eye to the center.