Why Poisson ratio of Cork is zero?

Why Poisson ratio of Cork is zero? Applications where Poisson’s ratio is important The near-zero Poisson’s ratio for cork makes it an ideal material as a bottle stopper. This is because cork almost does not expand even when compressed on either side. In contrast, a rubber stopper will expand laterally…

Read More

Why use a VPN for client to server connections over

Why use a VPN for client to server connections over the Internet? A VPN, or Virtual Private Network, allows you to create a secure connection to another network over the Internet. VPNs can be used to access region-restricted websites, shield your browsing activity from prying eyes on public Wi-Fi, and…

Read More

Why myelination occurs in PNS?

Why myelination occurs in PNS? In peripheral nerves, Schwann cells form myelin, which facilitates the rapid conduction of action potentials along axons in the vertebrate nervous system. … In addition to forming the myelin sheath, Schwann cells orchestrate much of the regenerative response that occurs after injury to peripheral nerves.…

Read More

Why is there a GREY pixel on my screen?

Why is there a GREY pixel on my screen? They are stuck pixels where the colour of them does not change between the red,blue, and green used to make all the possible colour combinations the display can produce. The pixels if stuck always become more prominent when a large area…

Read More

Why social media is good for government?

Why social media is good for government? Social media allows engagement with the public simple yet powerful, provides a useful tool to build audience trust and gives useful insights on public sentiment to help inform government decisions and public policy. Is the government involved with social media? Government agencies are…

Read More

Why natural gas is an important feedstock?

Why natural gas is an important feedstock? Natural gas is a non-renewable hydrocarbon used as a source of energy for heating, cooking, and electricity generation. It is also used as a fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.…

Read More

Why is unconjugated bilirubin called indirect bilirubin?

Why is unconjugated bilirubin called indirect bilirubin? Unconjugated bilirubin does not react well in this system unless alcohol is added to promote its solubility in water. Conjugated bilirubin also is called direct bilirubin because it reacts directly with the reagent, and unconjugated bilirubin is called indirect because it has to…

Read More

Why is TNF called tumor necrosis factor?

Why is TNF called tumor necrosis factor? The designation TNF or tumor necrosis factor reflects the original discovery in the 1970s of a cytotoxic substance produced by immune cells stimulated by endotoxin. Where is tumor necrosis factor? mTNF- is mainly found on monocytes/macrophages where it interacts with tissue receptors by…

Read More

Why must oxaloacetate be converted to malate in gluconeogenesis?

Why must oxaloacetate be converted to malate in gluconeogenesis? Because oxaloacetate cannot pass through the mitochondria membranes it must be first converted into malate by malate dehydrogenase. Malate can then cross the mitochondria membrane into the cytoplasm where it is then converted back into oxaloacetate with another malate dehydrogenase. What…

Read More

Why it is called instrumental conditioning?

Why it is called instrumental conditioning? Operant, or instrumental, conditioning is so called because, in making their responses, learners provide the instrument by which a problem is solved. Such learning is more important to schoolwork, for teachers are concerned ultimately with drawing forth new responses from their students. What are…

Read More

Why language is a mental phenomenon?

Why language is a mental phenomenon? Language as a Unique Human Phenomenon Besides the fact that language/speech plays an important role as a regulation contour of all mental processes, it is also a unique human phenomenon [2,14]. … Thus, the human brain has a new systemo-localisation principle according to which…

Read More

Why is tree branches a golden ratio?

Why is tree branches a golden ratio? Golden section in branching. … Mature trees have six or more branches and growth direction, the angle between the two neighbors is about 135 and the angle between the main stem and each branch is close to 34.4 which is the golden section…

Read More

Why is the troposphere also called ionosphere?

Why is the troposphere also called ionosphere? The ionosphere is a very active part of the atmosphere, and it grows and shrinks depending on the energy it absorbs from the Sun. The name ionosphere comes from the fact that gases in these layers are excited by solar radiation to form…

Read More

Why mercury is called amalgam?

Why mercury is called amalgam? An amalgam is an alloy of mercury with one or more other metals. Most dental amalgams are called silver amalgams since silver is the principal constituent that reacts with mercury. How do you get rid of mercury amalgam? Using a small-diameter carbide drill, the mercury…

Read More

Why millimeter waves are used in 5G?

Why millimeter waves are used in 5G? That’s why, among the millimeter-wave frequencies, 28 GHz and 60 GHz are the most promising frequencies for 5G. … Therefore, using millimeter wave frequencies can easily increase the spectrum bandwidth by a factor of 10, allowing for a massive increase in transmission speeds.…

Read More

Why is there no growth on my agar plate?

Why is there no growth on my agar plate? The culture plate has colonies that do not look like most of the colonies, or there are colonies where nothing was streaked. Reason: The plate has become contaminated with bacteria or fungi from the environment. What kinds of bacteria do not…

Read More

Why salamander is an amphibian?

Why salamander is an amphibian? Salamanders are a type of amphibian; they have moist skin and are usually found in damp habitats near or in water. Salamanders are closer related to frogs despite how different frogs and salamanders look. Lizards are a type of reptile; they have dry skin with…

Read More

Why the mean is important?

Why the mean is important? The mean is an important measure because it incorporates the score from every subject in the research study. … Mode is the value that occurs most often and does not provide an indication of all the values collected in a research, but rather it expresses…

Read More

Why put a mezuzah on the door?

Why put a mezuzah on the door? In mainstream Rabbinic Judaism, a mezuzah is affixed to the doorpost of Jewish homes to fulfill the mitzvah (Biblical commandment) to write the words of God on the gates and doorposts of your house (Deuteronomy 6:9). What is a mezuzah and what is…

Read More

Why rats are used in experiments?

Why rats are used in experiments? Most of the mice and rats used in medical trials are inbred so they are almost identical genetically helping to make the results of medical trials more uniform. Another reason they’re used as models in medical testing is that their genetic, biological and behavior…

Read More

Why should I avoid sunlight while taking hydrochlorothiazide?

Why should I avoid sunlight while taking hydrochlorothiazide? Hydrochlorothiazide is a prescription drug used to treat high blood pressure and swelling. It is known to make skin more sensitive to ultraviolet radiation and sunlight, meaning patients can get sunburned more easily. What happens if you are in the sun while…

Read More

Why is there a ball near my collarbone?

Why is there a ball near my collarbone? If not a fracture, it could be due to an infection, a cyst or tumor, or an enlarged lymph node. A collarbone injury, such as a fracture or break, can sometimes cause a lump to form. The injury can range in severity…

Read More

Why it is called millimeter-wave?

Why it is called millimeter-wave? They are called millimeter waves because they vary in length from 1 to 10 mm, compared to the radio waves that serve today’s smartphones, which measure tens of centimeters in length. Until now, only operators of satellites and radar systems used millimeter waves for real-world…

Read More

Why is there a bony bump on my finger?

Why is there a bony bump on my finger? Heberden’s nodes are hard bony lumps in the joints of your fingers. They are typically a symptom of osteoarthritis. The lumps grow on the joint closest to the tip of your finger, called the distal interphalangeal, or DIP joint. What are…

Read More

Why is there a flag symbol in kwashiorkor?

Why is there a flag symbol in kwashiorkor? A peculiar change in hair color in which the hair becomes discolored in a band perpendicular to its long axis. This is seen in kwashiorkor and indicates a period of severe malnutrition. What does flag sign mean in medical terms? (flag) medical…

Read More