In chromatography, the retardation factor (R) is the fraction of an analyte in the mobile phase of a chromatographic system. In planar chromatography in particular, the retardation factor R F is defined as the ratio of the distance traveled by the center of a spot to the distance traveled by the solvent front. Ideally, the values for R F are equivalent to the R values used in column ...

An immobile or nearly immobile joint is called a synarthrosis. The immobile nature of these joints provide for a strong union between the articulating bones. This is important at locations where the bones provide protection for internal organs. ... Define how joints are classified based on function. Describe and give an example for each ...

Dec 09, 2020 · There are differences between male and female gametes, and both can be motile or immobile. It appears later in evolution than isogamy. It occurs in fungi, higher invertebrates, and other animals. Oogamy is the fusion of a very large, immobile female gamete with small, mobile male gametes. It is the last type of reproduction to appear in evolution.

Equine lymphangitis is an inflammation or swelling associated with impairment of the lymphatic system, particularly in a limb, in horses.It is most commonly a bacterial infection, although bacterial culture may be negative.. Often referred to as fat- or big-leg disease, it is sometimes known as weed or Monday-morning disease (not to be confused with the more common usage …

Oct 01, 2020 · Schizophrenia is a chronic mental disorder that makes it difficult for a person to distinguish between real and false perceptions and beliefs. Symptoms can be so severe and limiting that everyday activities can be difficult to complete. 5 Schizophrenia Subtypes. There are five subtypes of schizophrenia based on the predominant symptoms that a patient is …

Gravity measurements define anomalous density within the Earth; in most cases, ground-based gravimeters are used ... Thorium is generally the most immobile of the three radioelements and has geochemical behavior similar to that of zirconium. Thorium content, like uranium content, tends to increase in felsic ...