A woman with firm plaques on the buttocks and thighs

The thigh's motion is primarily governed by muscles originating in the pelvic girdle and inserted into the femur. One crucial muscle, the iliopsoas, is a combination of the psoas major and the iliacus muscles, sharing a common insertion point on the lesser trochanter of the femur.
Three other significant muscles are the gluteus maximus, gluteus medius, and gluteus minimus. The gluteus maximus originates from the posterior surface of the ilium, sacrum, and coccyx, and the thoracolumbar...

Plaquing is a routine method used to quantify live viruses in a population. Though plaquing is frequently taught in various microbiology curricula with bacteria and bacteriophages, plaquing of mammalian viruses is more complex and time-consuming. This protocol describes the procedures that function reliably for regular work with herpes simplex...

Here we describe a method to quantify infectious particles of murine norovirus (MNV), which is the only norovirus that efficiently replicates in cell culture. The plaque assay takes advantage of MNV’s tropism for murine macrophages and can be adapted for use with biological or environmental samples containing...

Source: Tilde Andersson1, Rolf Lood1
1 Department of Clinical Sciences Lund, Division of Infection Medicine, Biomedical Center, Lund University, 221 00 Lund, Sweden
Viruses that infect prokaryotic organisms, called bacteriophages or simply phages, were identified in the early 20th century by Twort (1) and d'Hérelle (2) independently. Phages have since been widely recognized for their therapeutic value (3) and their influence on human (4), as well as global, ecosystems (5). Current concerns...

Factor markets are markets for the inputs used in production such as labor, capital, and land. In the labor market, firms seek to hire employees, and workers seek employment.
The demand for labor refers to the number of employees a firm aims to hire during a specified time period at a given wage rate. For instance, on an organic farm, the owner must decide how many workers are needed each week to manage the crops and harvest the produce.
Demand for labor is a derived demand. Derived demand...

Producer surplus is the difference between the revenue a producer earns from selling a product and the minimum amount they are willing to accept for it. In a perfectly competitive market, producers are price takers. This means that a producer does not set their own price and sell the products at the prevailing market price. Consequently, the amount actually received by a firm is influenced by the market price of the product.The firm's willingness to supply is determined by its supply...