POSSIBLE FIXES: Turn the overvoltage controller is on. Check supply voltage for constant or transient high voltage. Check the operation of brake chopper and resistor. Increase deceleration time. Use the “coast to stop” function whenever possible. Fit frequency converter with brake chopper and brake resistor. What causes overvoltage on aRead More →
Physiological afterimage is a normal response that occurs when an image briefly persists after looking away, such as following a camera flash. What are the variables that affect afterimages? The variables that will affect afterimages are age, gender, glasses, and brightness. Younger participants will see the afterimage for a shorterRead More →
Mechanical wear and tear that builds up over time is the most common cause of osteoarthritis, but it can also develop due to an injury. When an injury changes the alignment of a joint, it can damage the cartilage more rapidly. In the hands, this damage causes enlarged joints andRead More →
The most common cause of myasthenic crisis often is infection, although idiopathic causes are also common. Many other factors influence cholinergic transmission, including drugs, temperature, and emotional state. What is the mechanism of action for myasthenia gravis? Myasthenia gravis (MG) is a relatively rare autoimmune disorder in which antibodies formRead More →
Certain Medical Conditions A person may develop one or more lipomas if they have Gardner syndrome (an inherited condition that causes benign and malignant tumors to form), adiposis dolorosa, familial multiple lipomatosis, or Madelung disease (seen mostly in men who are heavy drinkers). How is dercum disease inherited? Dercum diseaseRead More →
Males have a square jawline and the line between the outer edge of the jaw and the ear is vertical. Conversely, in females the jaw is much more pointed and the edge of the jaw slopes gently towards the ear. Are square chins attractive? Don Draper is an incredibly sexyRead More →
Hygroscopicity is the tendency of a solid substance to absorb moisture from the surrounding atmosphere. The process can take on a number of forms. Thus, with a porous solid such as activated carbon, water vapor will be physically adsorbed, both on the external surface and within the pores, to formRead More →
In theory, CJD can be transmitted from an affected person to others, but only through an injection or consuming infected brain or nervous tissue. There’s no evidence that sporadic CJD is spread through ordinary day-to-day contact with those affected or by airborne droplets, blood or sexual contact. Which two methodsRead More →
If there are no lone pairs on the central atom, and if all the bonds to the central atom are the same, the molecule is nonpolar. … If the central atom has at least one polar bond and if the groups bonded to the central atom are not all identical,Read More →
A common assumption is that regurgitation occurs soon after eating. While this is true in some instances, many dogs will regurgitate hours, or even days, after eating. Conversely, dogs may vomit within minutes of eating. What does regurgitation look like in dogs? Regurgitation is fairly passive. The animal lowers itsRead More →