Whenever a flat sheet is drawn over a contoured surface, the material is going to stretch. A contoured part has a surface area greater than that of a flat sheet of the same length and width. This difference in surface area is known as the “draw ratio”. ...
When a bacterium is infected by a virus, it uses a Cas nuclease to snip off a piece of viral DNA known as a protospacer. This fragment is stored in the bacterial genome with fragments from other viruses that have previously infected the cell - an immune memory. These viral spacer ...
Pressure forming competes with injection molding in terms of surface detail where sharpness and crispness of styling lines and logos is important. It has much more affordable tooling with a shorter time-to-market with easier updates and modifications. ...
Asthma is a chronic lung disorder that can make breathing difficult. With asthma, a person experiences narrow, inflamed airways (bronchial tubes). "Asthma" is an ancient Greek word meaning "short breath," and as the name implies, it can leave you gasping for air. One of the telltale signs...
Asthma is a chronic lung condition that causes your airways to swell and become narrow. Learn more about what asthma is, what causes it, and how to treat it.
CRISPRs (Clustered Regularly Interspaced Short Palindromic Repeats), are part of an organism’s bacterial defense system, first discovered by Francisco Mojica, a scientist at the University of Alicante in Spain. They “consist of repeating sequences of genetic code, interrupted by ‘spacer’ ...
In many cases, the ESR of a capacitor is not directly given in a datasheet, but rather communicated in terms of a summary figure such as Q, dissipation factor (DF), or Tan δ. All are quotients of a capacitor’s ESR and capacitive reactance (XC) expressed differently. Tan δ and ...
Antibiotic‑loaded cement spacers A typical knee or hip antibiotic-loaded spacer is shown in Fig. 1. Antibiotic-loaded spacers have two primary roles in two-stage exchange arthroplasty: filling the joint cavity, which tensions the soft tissues while restoring limb length, and antibiotic ...
(a) What are the advantages of generic drugs? (b) Give an example. What is the possible disadvantage of therapeutic cloning? Describe patients for whom the use of a spacer might be beneficial and explain why it should be considered. What would be the advantages and d...
Loose spacers.These will need to be repositioned or replaced if they slip or fall out completely. Side Effects of Braces Because braces and retainers brush up against the inside surface of the mouth, you may be more prone to havingcanker sores. If you get a canker sore, your orthodontist...