The main purpose of NAD is to

The cellular respiration processes of all living cells make use of the coenzyme Nicotinamide adenine dinucleotide (NAD). It plays a key role in energy metabolism by accepting and donating electrons. The low energy form NAD+ shown at left is raised to the high energy form NADH.

Jonathan swift is using a satirical approach to make awareness to the fact that there are too many beggars (which include women and young children) on the streets. his solution? eat the children. yes this sounds like the craziest thing in the world but it's a solution. the children could be sold to landlords to pay rent and the family could have stuffed bellies. he lists the advantages, disadvantages, and the rebuttal to the disadvantages to support his claim. he also suggest what age should be the highest price and how to cook them. in the end, he excludes himself from his solution. all i all, swift uses a satirical approach to get people aware of the beggars that flood their streets.if you need more for "a modest proposal", i am here.

Era o zi ploioasa. eram la scoala iar un om impartea bilete pentru un circ, bineinteles ca am luat si eu unul. pe bilet scria ca circul va avea loc chiar maine la ora 15: 00, iar intrarea costa 15 lei. eram nerabdatoare sa merg.a doua zi am ajuns, mi-am platit biletul, mi-am luat o vata de zahar si am luat loc sa asist spectacolul. totul se desfasura frumos, claunii dansau, era totul amuzant. se intamplase ca, un sarpe sa scape din cusca sa, si sa vina spre public, ce a urmat mai departe a fost intradevar comic. toti oamenii s-au speriat si s-au urcat pe scaune, urland cat ii tineau plamanii, dar sarpele venise doar sa ia o bucata de popcorn de jos sa o manance, iar apoi a inceput sa faca scamatorii. a fost totul atat de amuzant, deoarece oamenii erau speriati iar sarpele  nu avea nici o vina.spectacolul s-a terminat iar eu am mers acasa si le-am povestit parintilor mei, care si ei la randul lor, au ras cu pofta.