Wednesday, March 4, 2020
Quotes From the Cynics - English Translation
Quotes From the Cynics - English Translation What is Cynicism? Courtesy of translator Giles Laurà ©n, author of The Stoics Bible from The Cynics Diogenes Laertius. Loeb Classical Library. 2 vols. From Socrates Antisthenes learned his hardihood, emulating his disregard of feeling, and he thus inaugurated the Cynic way of life.D.L.II. p.5. Id rather feel anger than feel pleasure.Antisthenes.D.L.II. p.5. We ought to make love to such women as will feel a proper gratitude.Antisthenes.D.L.II. p.5. What sort of woman should one marry? If shes beautiful, youll not have her to yourself; if shes ugly, youll pay for it dearly.Antisthenes.D.L.II. p.5. It is a royal privilege to do good and be spoken ill of.Antisthenes.D.L.II. p.5. It is better to fall in with crows than with flatterers; for in the one case you are devoured when dead and in the other case while alive.Antisthenes.D.L.II. p.7. The height of human bliss? To die happy.Antisthenes.D.L.II. p.7. As iron is eaten away by rust, so the envious are consumed by their own passion.Antisthenes.D.L.II. p.7. States are domed when they are unable to distinguish good men from bad.Antisthenes.D.L.II. p.7. When he was applauded by rascals: I am horribly afraid I have done something wrong.Antisthenes.D.L.II. p.7. It is strange that we sort the wheat from the chaff and the unfit from the fit in war, but we do not excuse evil men from the service of the state.Antisthenes.D.L.II. p.9. The advantages of philosophy? That I am able to hold converse with myself.Antisthenes.D.L.II.9. When Diogenes begged a coat from him, he bade him fold his cloak around him double.Antisthenes.D.L.II. p.9. What learning is most necessary? How to get rid of having anything to unlearn.Antisthenes.D.L.II. p.9. When men are slandered, they should endure it more courageously then if they were pelted with stones.Antisthenes.D.L.II. p.9. He recommended the Athenians to vote that asses are horses because they had generals who had no training and were merely elected.Antisthenes.D.L.II. p.9. Many men praise you. Why, what wrong have I done?Antisthenes.D.L.II. p.9. What must one do to become good and noble? You must learn from those who know the faults you have are to be avoided.Antisthenes.D.L.II. p.11. May the sons of your e nemies live in luxury!Antisthenes.D.L.II. p.11. Virtue can be taught; nobility belongs to the virtuous; virtue alone assures happiness; virtue is an affair of deeds and needs not words or learning.Antisthenes.D.L.II. p.13. The wise man is self-sufficient for all the goods of others are his.Antisthenes. D.L.II. p.13. Ill repute is a good thing and much the same as pain.Antisthenes.D.L.II. p.13. The wise man will be guided in his public acts not by the established laws but by the law of virtue.Antisthenes.D.L.II. p.13. The wise man will marry and have children with the handsomest women and he will not disdain to love since only the wise man knows who is worthy to be loved.Antisthenes.D.L.II. p.13. To the wise man, nothing is foreign or impracticable. A good man deserves to be loved. Men of worth are friends. Make allies of men who are at once both brave and just. Virtue is a weapon that cannot be taken away.Antisthenes.D.L.II. p.13. It is better to be with a handful of good men fighting against all the bad than to be with hosts of bad men fighting against a handful of good men.Antisthenes.D.L.II. p.13. Pay attention to your enemies, for they are the first to discover your mistakes.Antisthenes.D.L.II. p.13. Esteem an honest man above a kinsman.Antisthenes.D.L.II. p.13. Virtue is the same for women as for men.Antisthenes.D.L.II.p.13. Wisdom is a most sure stronghold which never crumbles away nor is betrayed. Walls of defence must be constructed by our own impregnable reasoning.Antisthenes.D.L.II. p.13. Strike, for you will find no wood hard enough to keep me away from you so long as I think you have something to teach me.Diogenes.D.L.II. p.25. By watching a mouse running about, not looking for a place to lie down, not afraid of the dark, not seeking any dainty things, Diogenes discovered the means of adapting himself to circumstances.D.L.II. p.25. For the conduct of life we need right reason or a halter.Diogenes.D.L.II. p.27. Antisthenes. PL.Mor.13.2,p.465. Men strive for many things, though few strive to be good.Diogenes.D.L.II. p.29. Diogenes was angry that men should sacrifice to the gods to ensure health and then feast to its detriment.D.L.II. p.31. We ought to stretch out our hands to our friends with the fingers open, not closed.Diogenes.D.L.II. p.31. You must obey me, although I am a slave, if a physician or a helmsman were in slavery, he would be obeyed.Diogenes.D.L.II. p.33. Alexander is reported [by Hecato] to have said: Had I not been Alexander, I should have liked to beDiogenes.D.L.II. p.35. PL.Mor.7,p.557. The word disabled ought to be applied not to the deaf or blind, but to those who have no wallet.Diogenes.D.L.I. p.35. Diogenes described himself as the sort of hound all praise, but none dare hunt with.D.L.II. p.35. You are an old man, take a rest! What? if I were running in the stadium ought I to slacken my pace when approaching the goal? Ought I not rather to put on speed?Diogenes.D.L.II. p.35. Having been invited to dinner, Diogenes declined, saying that the last time he had gone his host had not shown proper gratitude.D.L.II. p.35. Diogenes followed the example of the trainers of choruses in setting the note a li ttle high to ensure the rest would hit the right note.D.L.II. p.37. Some people are so nearly mad that a finger makes all the difference. If you go about with your middle finger stretched out people will think you mad, but if its the little finger you may be praised.Diogenes.D.L.II. p.37. On observing a child drinking from his hands he threw away his cup and remarked: A child has bested me at plain living.Diogenes.D.L.II. p.39. All things belong to the gods. The wise are friends of the gods and friends hold all things in common. Therefore all things belong to the wise.Diogenes.D.L.II. p.39 D.L.II. p.73. To a woman ungracefully kneeling before a god: Are you not afraid good woman that the god may be standing behind you, for all things are full of his presence and you may be put to shame?Diogenes.D.L.,II. p.39. To fortune oppose courage, to convention nature, to passion reason.Diogenes.D.L.II. p.41. When Alexander told him to ask any boon he liked: Stand out of my light.Diogenes.D.L.II. p.41. PL.Mor.7,p.557. It would be ludicrous if good men were to dwell in the mire while folk of no account were to live in the Isles of the Blest because they had been initiated.Diogenes.D.L.II. p.41. When mice crept on to his table: See how even Diogenes keeps parasites.Diogenes.D.L.II. p.41. When Plato called him a dog: Quite true, I return again and again to those who have sold me.Diogenes.D.L.II. p.41. Upon leaving the baths he was asked if many men were bathing and replied, no; asked if there was a great crowd of bathers he replied yes.Diogenes.D.L.II. p.43. Plato had defined man as a featherless, biped animal. Diogenes brought a plucked chicken to the lecture hall and said: Here is Platos man.Diogenes.D.L.II. p.43. The proper time for lunch? If a rich man, when you will; if a poor man when you can.Diogenes.D.L.II. p.43. Its better to be a Megarians ram than his son.Diogenes.D.L.II. p.43. He lit a lamp in daylight and went about the streets saying: I am looking for a man.Diogenes.D.L.II. p.43. On seeing a religious purification: Unhappy man, dont you know that you can no more get rid of errors of conduct by sprinklings than you can mistakes of grammar?Diogenes.D.L.II. p.45. Men pray for things which seem to them good and not for good things.Diogenes.D.L.II. p.45. There are those who are more alive to their dreams than to their real lives.Diogenes.D.L.II. p.45. When the herald proclaimed Dioxippus to be victor: over men, Diogenes protested: Nay, over slaves, I over men.Diogenes.D.L.II. p.45. On being dragged before Philip and accused of spying: Yes, a spy upon your insatiable greed.Diogenes.D.L.II. p.45. PL.Mor.7,p.561. Alexander having sent a letter to Antipater by Athlios: Graceless son of graceless sire to graceless wight by graceless squire.Diogenes.D.L.II. p.45. Perdiccas having threatened him with death if he did not come to him: Thats nothing wonderful, for a beetle or a tarantula would do the same. I would have been properly threatened if Peridiccas had suggested he would be happy at my absence.Diogenes.D.L.II. p.45. The gods have given us the means of living easily, but that this had been put out of sight by our need for luxuries.Diogenes.D.L.I I. p.47. To a man having his shoes put on by a slave: You will not attain full felicity until he wipes your nose as well and that will come when you have lost the use of your hands.Diogenes.D.L.II. p.47. When the officials of the temple led away a man who stolen a bowl: The great thieves are leading away the little thief.Diogenes.D.L.II. p.47. To a boy throwing stones at the gallows: Good work, one day youll find your mark.Diogenes.D.L.II. p.34. To a man wearing a lions skin: Leave-off dishonouring the habiliments of courage.Diogenes.D.L.II. p.47. To one commenting on Callisthenes good fortune: Not so, but ill fortune, for he must breakfast and dine when Alexander thinks fit.Diogenes.D.L.II. p.47. Being short of money, he told his friends that he asked not for alms, but for his salary.Diogenes.D.L.II. p.47. When masturbating in the market place, he wished it were as easy to relieve hunger by rubbing an empty stomach.Diogenes.D.L.II. p.47 D.L.II. p.71. PL.Mor.13.2,p.501. To a youth playing c ottabos: The better you play the worse it is for you.Diogenes.D.L.II. p.49. An ignorant rich man he called the sheep with the golden fleece.Diogenes.D.L.II. p.49. Seeing a for sale sign on the house of a profligate: I knew that after his excesses you would expel your owner.Diogenes.D.L.II. p.49. To a man who complained of being importuned: Cease to hang out a sign of invitation.Diogenes.D.L.II. p.49. Of a dirty bath: When people have bathed here, where are they to go to get clean?Diogenes.D.L.II. p.49. Diogenes alone praised a stout musician saying he was worthy for being so big and continuing to sing to his lute instead of turning brigand.Diogenes.D.L.II. p.49. To a musician who was always deserted by his audience: Hail chanticleer! Your song makes everyone rise.Diogenes.D.L.II. p.49. Hegesias asked him for one of his works: You dont choose painted figs over real ones and yet you pass over true training and apply yourself to written rules.Diogenes.D.L.II. p.51. When reproached for his exile: Nay, it was through you, you miserable fellow, that I became a ph ilosopher.Diogenes.D.L.II. p.51. The people of Sinope exiled him; he condemned them to staying home.Diogenes.D.L.II. p.51. Why are athletes so stupid? Because they are built up of pork and beef.Diogenes.D.L.II. p.51. Why are you begging from a statue? To get practice in being refused.Diogenes.D.L.II. p.51. PL.Mor.7,p.65. If you have already given to anyone else, give to me also, if not, begin with me.Diogenes.D.L.II. p.51. What bronze is best for a statue? That of which Harmodius and Aristogiton were moulded.Diogenes.D.L.II. p.51. How does Dionysius treat his friends? Like purses; so long as they are full he hangs them up and when they are empty he throws them away.Diogenes.D.L.II. p.51. The love of money is the mother of all evils.Diogenes.D.L.II. p.53. Seeing a spendthrift eating olives in a tavern: If you had breakfasted in this fashion, you would not be so dining.Diogenes.D.L.II. p.53. Good men are the images of gods and love the business of the idle.Diogenes.D.L.II. p.53. What is wretched? An old man destitute .Diogenes.D.L.II. p.53. What creature has the worst bite? Of those that are wild, the sycophants, of those that are tame, the flatterers.Diogenes.D.L.II. p.53. Ingratiating speech is honey used to choke you.Diogenes.D.L.II. p.53. The stomach is lifes Charybdis.Diogenes.D.L.II. p.53. Why is gold pale? Because it has so many thieves plotting against it.Diogenes.D.L.II. p.53. Seeing some women hanged from an olive tree. Would that every tree bore similar fruit.Diogenes.D.L.II. p.53. Do you have anyone to wait on you? No. Then who will carry you to burial? Whoever wants the house.Diogenes.D.L.II. p.55. Noticing a youth lying in an exposed position: Up man up lest some foe thrust a dart in your back.Diogenes.D.L.II. p.55. What sort of man do you consider Diogenes to be? A Socrates gone mad.Diogenes.D.L.II. p.55. The right time to marry? For a young man, not yet; for an old man, never at all.Diogenes.D.L.II. p.55. A man dressing with care: If its for men youre a fool; if for women a knave.Diogenes.D.L.II. p.55. To a blushing youth: Courage, that is the hue of virtue.Diogenes.D.L.II. p.55. After listening to two lawyers disputing and condemned them: one man had no doubt stolen, but the other had lost nothing.Diogenes.D.L.II. p.57. 118. What wine is pleasant to drink? That for which others pay.Diogenes.D.L.II. p. 57. People laugh at you: But I am not laughed down.Diogenes.D.L.II. p.57. Life is evil: Not life, but living ill.Diogenes.D.L.II. p.57. When advised to go after his runaway slave: It would be absurd if Manes can live without Diogenes, that Diogenes could not get on without Manes.Diogenes.D.L.II. p.57. What kind of hound are you? When hungry a Maltese; when full a Molossian - two breeds that most people praise, though for fear of fatigue they do not venture out hunting with them. So neither can you live with me because you are afraid of the discomforts.Diogenes.D.L.II. p.57. Why do people give to beggars and not to philosophers? Because they think that one day they may be lame or bli nd, but never expect that they will turn to philosophy.Diogenes.D.L.II. p.57. On begging to a miser who was slow to respond: My friend, its for food that Im asking, not for funeral expenses.Diogenes.D.L.II. p.59. On being rebuked for falsifying the currency: That was the time when I was such as you are now, but such as I am now you will never be.Diogenes.D.L.II. p. 59. To Myndus, a small city with large gates: Men of Myndus, bar your gates lest the city run away!Diogenes.D.L.II. p.59. In response to Craterus invitation: No, I would rather live on a few grains of salt at Athens than enjoy sumptuous fare at Crateruss table.Diogenes.D.L.II. p. 59. To Anaximenes the fat rhetorician: Let us beggars have something of your paunch; it will be a relief to you and we shall get advantage.Diogenes.D.L.II. p. 59. Being reproached for eating in the market: Well, it was in the market that I felt hungry.Diogenes.D.L.II. p.59. Plato saw him washing lettuce and said: If you had paid court to Dionysius you wouldnt now be washing lettuce. Diogenes: If you had washed lettuce you wouldnt have paid court to Dionysius.D.L.II. p.59. Most people laugh at you: And asses laugh at them, but as they do not care about asses so do I not care about them.Diogenes.D.L.II. p.61. Seeing a youth studying philosophy: Well done, Philosophy, that you divert admirers of bodily charms to the beauty of the soul.Diogenes.D.L.II. p.61. On the votive offerings at Samothrace: There would have been far more if those who were not saved had set up offerings.Diogenes.D.L.II. p.61. To a young man going out to dinner: You will come back a worse man.Diogenes.D.L.II. p.61. I will give you alms if you can persuade me: If I could persuade you I would persuade you to hang yourself.Diogenes.D.L.II. p.61. On his way from Lacedaemon to Athens: From the mens apartments to the womens.Diogenes.D.L.II. p.61. Libertines he compared to fig trees growing on a cliff whose fruit was eaten by vultures and ravens rather then by men.Diogenes.D.L.II. p.61. When a golden statue of Aphrodite was set up at Delphi: From the licentiousness of Greece.Diogenes.D.L.II . I am Alexander the Great King: and I am Diogenes the Cynic.Diogenes.D.L.II. p.63. Why are you called a Cynic? I fawn on those who give me anything, I bark at those who refuse, and I set my teeth in rascals.Diogenes.D.L.II. p.63. Handsome courtesans are like a deadly honeyed poison.Diogenes.D.L.II. p.63. A crowd gathered round when he ate in the market place calling him dog: It is you who are dogs when you stand around and watch me eat.Diogenes.D.L.II. p. 63. When two cowards slunk away from him: Dont be afraid, a Cynic is not fond of beet root.Diogenes.D.L.II. p.63. On seeing a stupid wrestler practicing medicine: What does this mean? Are you to have your revenge on those who formerly beat you?Diogenes.D.L.II. p. 63. Seeing the child of a courtesan throwing stones at a crowd: Take care you dont hit your father.Diogenes.D.L.II. p.63. A boy having shown him a dagger he had received from an admirer: A pretty blade with an ugly handle.Diogenes.D.L.II. p.63. A man was commended for givin g him a gratuity: Have you no praise for me who was worthy to receive it?Diogenes.D.L.II. p.63. A man asked if he might have his cloak back: If it was a gift I possess it and if it was a loan I am still using it.Diogenes.D.L.II. p.65. What have you gained from philosophy? This if nothing else, to be prepared for every fortune.Diogenes.D.L.II. p.65. Where are you from? I am a citizen of the world.Diogenes.D.L.II. p.65. To parents sacrificing to the gods in hopes of having a boy: But you do not sacrifice to ensure what manner of man he shall be.Diogenes.D.L.II. p.65. Being reproached for going in dirty places: The sun visits cesspools without being defiled.Diogenes.D.L.II. p.65. You dont know anything even though you are a philosopher: Even if I am a pretender to wisdom, that is philosophy.Diogenes.D.L.II. p.65. Someone brought him a child, highly gifted and of excellent character: What need then has he of me?Diogenes.D.L.II. p.67. Those who say excellent things yet fail to perform them are like harps as both have neither hearing nor perception.Diogenes.D.L.II. p.67. When he was asked why he was entering the theatre, meeting face to face everyone else as they came out: This is what I practice doing all my life.Diogenes.D.L.II. p.67. To a gay man: Are you not ashamed to make yourself less than natures intention; for nature made you a man and you play the part of a woman.Diogenes.D.L.II. p.67. To one who was ill adapted to study philosophy: Why then do you live if you do not care to live well?Diogenes.D.L.II. p.65. To one who despised his father: Are you not ashamed to despise him to whom you owe it that you can pride yourself?Diogenes.D.L.II. p.67. To a prating, handsome youth: Are you not ashamed to draw a dagger of lead from an ivory scabbard?Diogenes.D.L.II. p.67. 121. Being reproached for drinking in a tavern: Well, I also get my hair cut in a barbers shop.Diogenes.D.L.II. v.2, p.67. Many go to great pains to get what they would be better off without.Diogenes.D.L.II. p.69. To one with perfumed hair: Beware that the sweet scent on your head cause not an ill odour in your life.Diogenes.D.L.II. p.69. Bad men obey their lusts as slaves obey their masters.Diogenes.D.L.II. p.69. On seeing a bad archer he sat down in front of the target: So as to not get hit.Diogenes.D.L.II. p.69. Lovers derive their pleasures from their misfortunes.Diogenes.D.L.II. p.69. Is death evil? How can it be since in its presence we are not even aware of it?Diogenes.D.L.II. p.69. Alexander asked if he were afraid of him: Why? What are you, a good or a bad thing? A good thing. Who then is afraid of the good?Diogenes.D.L.II. p.69. Education controls the young, consoles the old and adorns the rich.Diogenes.D.L.II. p.69. The most beautiful thing in the world? Freedom of speech.Diogenes.D.L.II. p. 71. On entering a boys school he found there many statues of the Muses, but few pupils: By the help of the gods, schoolmaster, you have filled your classroom.Diogenes.D.L.II. p.71. Two kinds of training, mental and bodily, each incomplete without the other.Diogenes.D.L.II. p.71. Nothing in life has any chance of succeeding without strenuous practice and this is capable of overcoming anything.Diogenes.D.L.II. p.73. Even the despising of pleasure is pleasurable once we are habituated to it.Diogene s.D.L.II. p.73. Diogenes lives like Heracles, who preferred liberty to everything.Diogenes.D.L.II. p.73. It is impossible for society to exist without law. Without a city no benefit can be derived from what is called civilization. The city is civilised and there is no advantage in law without a city; therefore law is something civilised.Diogenes.D.L.II. p.75. Good birth and fame are the ornaments of vice.Diogenes.D.L.II. p.75. The only true commonwealth is as wide as the universe.Diogenes.D.L.II. p.75. Open union between a man who persuades and a woman who consents is better than marriage.Diogenes.D.L.II. p.75. Music, geometry, astronomy and the like studies are useless and unnecessary.Diogenes.D.L.II. p.75. What are you good for? Ruling men.Diogenes.D.L.II. p.77. Sell me to this man [Xaniades]; he needs a master!Diogenes.D.L.II. p.77. On slavery: Lions are not the slaves of those who feed them, rather, their masters are slaves to their possessions. Fear is the mark of the slave and lions do not fe ar men.Diogenes.D.L.II. p.77. Diogenes had a wonderful gift of persuasion and could easily vanquish anyone he liked in argument.Diogenes.D.L.II. p.77. It is the privilege of the gods to need nothing and of godlike men to want but little.Diogenes.D.L.II. p.109. Crates was a Theban; he was known as the Door-opener from his habit of entering into houses and admonishing those within.D.L.II. p.89. Set down for the chef ten minas, for the doctor One drachma, for the flatterer talents five, For counsel smoke, for mercenary beauty A talent, for the philosopher three obols.Crates.D.L.II. p.89. That much I have which I have learnt and thought, The noble lessons taught me by the Muses; But wealth amassed is prey to vanity.Crates.D.L.II. p.89. What have you gained from philosophy? A quirt of lupins and to care for no one.Crates.D.L.II. p.91. Hunger stops love, or, if not hunger, Time, Or, failing both of these means of help, a halter.Crates.D.L.II. p.91. In summer-time a thick cloak he would wear To be like Crates, and in w inter rags.Philemon.D.L.II. p.91. Diocles relates how Diogenes persuaded Crates to give up his fields to sheep pasture and throw into the sea any money he had. In the home of Crates, Alexander is said to have lodged.D.L.II. p.91. The marriage of intrigue and adultery belongs to tragedy, having exile or assassination for its rewards; those who take up with courtesans are subjects for comedy since drunkenness and extravagance end in madness.Crates.D.L.II. p.93. Crates brother Pasicles, was a disciple of Euclides.D.L.II. p.93. It is impossible to find a man free from flaws; just as with the pomegranate, one seed is always going bad.Crates.D.L.II. p.93. We should study philosophy to the point of seeing generals as mere monkey drivers.Crates.D.L.II. p.95. Those who live with flatters are no safer than calves in the midst of wolves; neither have any to protect them and only such as plot against them.Crates.D.L.II. p.95. When Alexander asked if he would like his native city rebuilt: Why should it be? Another Alexander will come along and destroy it again.Crates.D.L.II. p. 97. Ignominy and Poverty are my country which Fortune can never take captive. I am a fellow citizen with Diogenes who defied all plots of envy.Crates.D.L.II. p. 97. Wearing a cloak youll go about with me, As once with Cynic Crates went his wife: His daughter too, as he himself declared, He gave in marriage for a month on trial.Menander. Twin Sisters.D.L.II. p.97. When he burned his own works: Phantoms are these of dreams o the world below.Metrocles.D.L.II. p.99. Do you suppose that I have been ill-advised, if instead of wasting further time on the loom, I have spent it on education?Hipparchia.D.L.II. p.101.
Monday, February 17, 2020
"An exploration of genes, inheritance and gene therapy for Essay
"An exploration of genes, inheritance and gene therapy for diabetes" - Essay Example Besides, if oneââ¬â¢s exposure to the microorganism is delayed due to the better standards of the living, which hinders the development of the immune system causing to make the person vulnerable to this disease. Gene therapy is the method by which one foreign gene into any cell is introduced into the body of the patient in order to produce insulin. The introduced gene could be the insulin gene itself, but it must be controlled by specific tissue promoter which is encoded as a factor in order to activate the insulin gene (Kelly, 2007). Cell transplantation is more successful treatment for diabetes as compared to the method of using insulin injections. The transplantation of organs, tissues or cells between animal species usually provides a number of beta cells, which is known as xenotransplantation. The most suitable donor of organs or cells is the pig but the major problem in using the pigââ¬â¢s organs for transplantation is that it is difficult to obtain in the tissue culture and the islets of the adult pig because of their poor survival. One more serious problem in xenotransplantation is an infection, which occurs because of the endogenous porcine retroviruses, which has a potentiality to infect human cell in vitro and vivo (Allman, 2008). Expansion of the primary beta cells and beta cell precursors can also be helpful in gene therapy. Beta cells are normally present in small bodies deep rooted in the pancreas known as islets. Beta cells do not have enough capacity for replication. There are a number of gene transduction methods in practice in the world in order to treat different disease including diabetes. These include viral and non-viral methods (LeRoith et al., 2004). Non-viral methods such as calcium phosphate co-precipitation are a very simple and an affordable method for genetically modifying pancreatic cells. When calcium
Monday, February 3, 2020
Chinese literature Unit 3 Essay Example | Topics and Well Written Essays - 1250 words
Chinese literature Unit 3 - Essay Example uââ¬â¢s ââ¬Å"Praying For Rain,â⬠1 from the Chou period, and the poem ââ¬Å"Sitting and Forgetting,â⬠2 from the Nine Songs, from the latter Chu period, and examine how each portray and think about ritual. The first shows a more straightforward approach to ritualââ¬âas in a kind of rain dance which is a means to an end. The second show ritual and its relation to nature as being potentially personally transformative. In ââ¬Å"Praying for Rainâ⬠the poet describes the rituals or etiquette that surrounds rainfall, the harvest, and agriculture. Back then there was no agricultural science. Most farmers believed that a good harvest came because the gods were happy. The harvest was hugely important for everyone because the population relied on it for nourishments. It therefore made sense that rituals and prayers that poets and priests believed would help the harvest would be of huge importance and would frequently be refined and added to in order to ensure the best possible harvest. Poetry and ritual at the time were in some sense a matter of life and death. Ku Liang Shu describes the correct time to pray for rain to improve the crops.3 He says that petitioners must wait until the last minute, until it becomes clear that the rain is absolutely necessary, before engaging in the ritual prayer. By praying, man is ââ¬Å"asking for a favourâ⬠the poet rights. These things must not be taken ligh tly. The power the gods have over people is one of life and death. There is an additional social aspect to this view of rituals: favours are important things and should be frivolously asked for. Ask only for what you need. We see in this work that rituals are taken very seriously and are mostly a way of communing with the gods, rather than with people (although there can be social implications to these rituals). The ââ¬Å"Sitting and Forgetting,â⬠one of the Nine Song, focuses much more on an abstraction of the ritual and its power to transform the world or the poetââ¬â¢s perspective of the world.
Saturday, January 25, 2020
Free Surface Energy of Polymers
Free Surface Energy of Polymers Free surface energy of polymers. Poly(itaconate)s and poly(methacrylate)s Ligia Gargallo1, Claudia Aguirre2, Angel Leiva2, Deodato Radic Abstract: The free surface energy (SE) for a series of mono and diesters derived from poly(itaconic) acid, was determined by wettability measurements and estimated by theoretical calculations from Sugdenââ¬â¢s Parachor. For these polymers it was observed a decreaseing in the free surface energy as the size of the chain of the alkyl groups in monoitaconates and diisoalkylitaconates increases. However, it did not allow to get values of the free surface energy comparable with experimental values, exception was for poly(2-chloroethyl diitaconate) and poly(3-chloropropyl diitaconate) where the experimental and theoretical variation was comparable. It means that the Sugden method match well for these polymers. Additionally, it was determined the free surface energy for some polymers from poly(methacrylic acid) derivatives, specifically poly(phenyl methacrylate)s (PPhMA). For these systems a decreasing in the free surface energy is observed, when a fluorine atom was introduced into the p henyl group. In general there was not a good correlation between experimental values and those estimated through the theoretical calculations. The influence of polymeric film thickness and topography on the determination of contact angle was studied for poly(phenylmethacrylate)s. The results show that the film thickness to determine contact angle must be over 254 Aà °. 1. Introduction In general it is very well known that due to the lack of surface mobility, the surface tension of a solid phase is too different to a liquid phase. So that, it is not possible to measure directly the surface tension of a solid phase, as it is the case of a liquid phase. It had been used several independent approximations to estimate the surface tension on a given system surface solid, being the measurement of contact angle the most practical way[1-11 ]. The surface of a solid, as well as of a liquid, has an additional free energy, but due to this lack of mobility in the surface of solids this energy is not possible to measure directly. [12] It means that the free surface energy can be estimated by wettability measurements in an indirect way, as shown in Figure 1. [13,14] An approximation to estimate the surface energy of solids is based on the interpretation of contact angle of sesil drop. Figure 1. Sesil drop over a solid surface. The arrows represent the surface energies when they are explained like forces of surface tension. From the schematic representation on Figure1, and considering the equilibrium state, the Youngââ¬â¢s equation is obtained. This equation establishes a relationship between the contact angle and the three surface tensions: (2) where: à ¸ is the contact angle, à ¯Ã à §s à ¯Ã¢â ¬Ã is the surface energy of solid-vapor interface, à ¯Ã à §sl is the surface energy solid-liquid interface and à ¯Ã à §l the surface energy at liquid-vapor interface. The dispersion force and polar contribution to SE, à ³d and à ³p, respectively, can be calculated by using the Owens, Wendt and Kaelble method. [15-17] The aim of this work is to obtain information about the free surface energy of several polymers with different chemical structures and various side chains. It was also interesting to clarify the inflence of the thickness and topography of the film in the determination of the SE of the polymeric systems studied. 2. Experimental Synthesis and characterization of poly(diisoalkylitaconate)s, poly(monoitaconate)s and poly(methacrylate)s Diisoalkylitaconates were obtained by conventional acid catalyzed esterification of itaconic acid using sulphuric acid in toluene and the corresponding acohols. [18-20] Monoitaconates were obtained by reaction of itaconic acid with the respective alcohols under fairly acidic conditions according to the method described by Baker et al., [21,22] for lower monoesters. Methacrylates were prepared by reaction of methacryloyl chloride with the appropriate alcohols in toluene solutions and N.N-dimethylaniline at reflux temperature during 24 h. Purification of the monomers was achieved by distillation under reduced pressure (0.5 mm Hg) as previously reported [23,24] for diitaconates and methacrylates. Purification of monoitaconates were achieved by repeated crystallization from toluene. The monomer structures and purity were confirmed by 1H-NMR and infrared spectroscopy with Fourier Transform (FT-IR). Polymerization was achieved in bulk at 340 and 350 K, depending on the monomer, using azobisisobutyronitrile (AIBN) as initiator under N2 (polymerization time 48-60 h; conversion 70%) for diitaconates, 48 h for monoitaconates; yield 35% and 10-3 w/w % of AIBN in benzene solution under vacuum in the case of methacrylates (polymerization time, 48 h; conversion 65%). Preparation of Polymeric films. Films of poly(monoitaconate)s and poly(diitaconate)s were prepared by evaporation of dilute solutions (0,05 g/dL) in tetrahydrofuran (THF), over the glass and silicon wafer plates. Poly(metacrylate)s were prepared from dilute solutions 0.05 g/dL in chloroform. Contact angle measurements Surface free energy. The total surface energies of the polymers were determined by wettability measurements with water, diiodomethane and ethyleneglycol. Polymers films were cast onto glass slides for optical microscopy and silicon wafer. The cast films were dried for 30 min at 393 K. The wettability of the polymer films was determined by contact angle measurements. Contact angles were measured using a contact angle system OCA by Dataphysics with a conventional goniometer and high performance video camera, controlled by SCA20 software. A syringe connected to a Teflon capillary of about 2 mm inner diameter was used to supply liquid into the sessile drops from above. A sessile drop of about 0.4-0.5 cm radius was used. The contact angles were measured carefully from the left and right side of the drop and subsequently averaged. These procedures were repeated for six drops of each liquid on three new surfaces. All reading were then averaged to give an average contact angle. All experiments were performed at room temperature. Determination of polymeric film thickness by ellipsometry. Optical Assembly. The ellipsometer used has a polarizer, a compensator, the sample, an analyzer and a detector. The light source comes from He-Ne laser whose wavelength is 632.8 nm, that fall onto the sample with an angle of 60.65à °. The analyzer remains fixed at an angle of 24.256à °, and the polarizer is mechanically adjusted so that the detector does not record any signal. Silicon wafers (Silicon doped with Boron crystalline plates) were used as substrates. Pieces of 12 x 12 mm were used. The most important characteristic of these substrates, are the refractive index of silicon of 3.877 + 0.019 [25, 26] and the refractive index of PPhMA was 1.5706 [27]. Substrates were also properly cleaned and dried, being their typical polarization angle between 43.8 and 43.9à °. Preparation of films of poly(phenylmethacrylate). The film of PPhMA was prepared by evaporation of the polymeric solution in chlorform over the silicon wafer. In order to get different films thickness of PPhMA, different concentration of the polymeric solutions were used. Concentrations were 0.05 g/dL, 0.10 g/dL, 0.20 g/dL, 0.30 g/dL and 0.40 g/dL. Estimation of film topography. Morphological analysis of surface films of poly(phenylmethacrylate) were done by Scanning Electron Microscopy (SEM). A film of PPhMA of 94 à ± 10 Ã⦠thickness was prepared from a solution of 0.05 g/dL in chloroform and deposited over a silicon wafer as substrate. 3. Results and Discussion. Polymers studied in this work were mono and diesters from poly(itaconic) acid, and additionally some polymers from poly(methacrylic) acid were also studied. The sixteen polymers studied are shown in scheme 1. Surface free energy was determined by measuring the contact angles (CAs) of water, ethyleneglycol and diiodomethane on the polymeric surfaces. The dispersion à ³d and polar à ³p contributions were calculated by the Owens, Wendt and Kaelble methods. [15,16, 28,29] The results obtained by wettability measurements of polymeric systems studied are summarized in Tables 1 to 4. In the same tables are the surface energy calculated from Sudgenà ´s parachor (à ¯Ã à § =(Ps/V)4) for the same polymers. In the case of poly(diisoalkyl itaconate)s it can be seen that the number of methylene groups increases the lateral chain, the calculated surface energy values decreases. This is a normal behavior because the hydrophobicity of the polymer must increase. However, it did not allow to get experimental values that present this behavior. As it is important to consider the possible errors on the determination of SE values due to the effects of the roughness and at the same time the thickness on adsorbed polymers. For this reason the film thickness was studied to clarify its influence on the measurement of contact angle. Mono esters of poly(itaconic) acid Diesters of poly(itaconic) acid Poly (methacrylic) acid Scheme 1 In order to get films with different thickness the concentration of the solution of poly(phenylmethacrylate), PPhMA, was modified. Thicknesses and topography of the films were measured by ellipsometry on silicon wafer substrates. It was found a good linear correlation between film thickness and polymer concentration. (Regression coefficient R=0.98955). Surface free energy of substrates used was also determined in order to obtain this information to perform appropriate comparison of the results dealing with this polymer. The film thickness determination for PPhMA was made on silicon wafer, and on a glass plate. The surface free energy values in both substrates were compared. Table 5 shows surface free energy values found for PPhMA in these substrates. Topography of the surface of PPhMA film at a thickness of 94 Aà ° was studied by SEM micrography. It was found that the polymer is homogenously distributed on the silicon wafer substrate, showing a surface with regular porosity. This demonstrates that PPhMA film whose thickness is 94 Ãâ¦, the surface is not completely cover and it produces in the measurement of the contact angle non reproducible values, due to the liquid will penetrate itself within the holes. Determination of surface free energy for PPhMA was performed at different film thickness. It was observed that for films thickness of PPhMA greater than 24513 Aà º there is a better reproducibility in the values of contact angle obtained. The SE values are shown in Table 6. 4. Conclusions Poly(monoitaconate)s with large lateral chains as poly(monodecylitaconate) and poli(monododecylitaconate), it was found that the surface free energy decreases as the length of the alkyl group increases. It allows concluding that the polymer increases its hydrophobic character, as its lateral chain increases. It is in agreement with its chemical structure. The surface free energy calculated through the Parachor parameter, for the poly(monoitaconate)s studied, decrease as the lateral chain increases its size. The estimation of surface free energy for the poly(diisoalkyl)itaconates, through Parachor, allows observing a decrease in the surface free energy for polymers, as the length of lateral chain increase; that is direct relation with the experimental work done. However, this work does not allow getting surface free energy values for those polymers comparable with the experimental value. The theoretical method of Sugden was not adequate to estimate those measurements. For polymers poly(2-chloroethyl diitaconate) and poli(3-chloropropyl itaconate), the variation of experimental and theoretical surface free energy was slight. It will imply that Sugden method is well fitted for those polymers. The study of surface free energy for poly(phenylmethacrylate)s shows that the introduction of a fluorine atom at phenyl group generates a decrease in its surface free energy. For poly(phenylmetacrylate), the results showed the film thickness, needed to determinate the contact angle, need to be higher than 24513 AÃâ¹Ã
¡. The difference in the measurement of surface free energy between those experimentally determined and those estimated since Parachor, are related to the complexity of the monomeric structure. It is likely that the volume of each group or atomic unit would be influenced by interactions of neighbor atoms within the monomeric unit. Therefore calculations of surface free energy based on the table of structural contributions of Sugdenââ¬â¢s Parachor would not fit at the experimental values. Acknowledgements. DR and AL. thanks to Fondecyt 1120091 for parcial finantial support. References [1] T. Rabockai Fà sico-Quà mica de Superficies, Ed. The General Secretariat of the Organization of American States Washington, D.C., Brazil, (1979). [2] M. Dà az Peà ±a, M., Quà mica Fà sica, Vol. II, cap.25. (1976). [3] R. A. L.Jones, R. W. Richards, Polymers at Surfaces and Interfaces, Ed. Cambridge University Press, U.K., (1999). [4] W.A. Zisman, Contact Angle, Wettability and Adhesion, Advances in Chemistry Series; American Chemical Society: Washington, D.C., Volume 43, (1964). [5] K. Ma, T. Chung, R. Good, Surface energy of thermotropic liquid crystalline polyesters and polyesteramide. J. Polym. Sci.: Part B 36,(1988) 2327-2337. [6] O. Driedger, AW Neumann, PJ Sell; Contact Angle, Wettability and Adhesion. Kolloid-ZZ. Polymere, 201 (1965), p. 52J. Kolloid-Z Z Polym. 52, (1965) 201, [7]A.W. Neumann, R.J. Good, C.J. Hope, M.J. Sejpal, Colloid Interface Sci., Physico-chemical surface characterization of hyaluronic acid derivatives as a new class of biomaterials Colloid Interface Sci. 49,(1974) 291-302 [8] Spelt K., Li, D. In A. W. Neumann, J. K. Spelt, Eds., Applied Surface Thermodynamics; Marcel Dekker: New York, pp. (1966) 239-292. [9] D.K. Owens, R.C. Wendt, Estimation of the surface free energy of polymers J. Appl. Polym. Sci. 13, 1741-1747 (1969). [10] C.J. Van Oss, K. Chaudhury, R. Good,. Interfacial Lifshitz-van der Waals and Polar Interactions in Macroscopic Systems J. Chem. Rev., 88 (1988), 927-941. [11]. A. Kwok, A. Li, A. W. Neumann., Low-rate dynamic contact angles on poly(methyl methacrylate/ethyl methacrylate, 30/70) and the determination of solid surface tensions. J. of Polym. Sci., Part B: Polymer Physics, 37,(1999) 2039-2051). [12] Van Krevelen D. W., Properties of Polymers, their estimation and correlation with Chemical structure, Ed. Elsevier, Amsterdam, Chap. 8, (1976) [13] L. Makkonen, On the methods to determine surface energies, Langmuir, 16, (2000) 7669ââ¬â7672. [14]L. Gargallo, D. RadiÃââ⬠¡, Structure/Surface energy relationships of polymers. Current Trends in Polymer science 6 (2001)121-133. [15] A. Rudawska, E. Jacniacka, Analysis for determining surface free energy uncertainty by the Owenââ¬âWendt method International Journal of Adhesion and Adhesives 29, 2009, Pages 451ââ¬â457 [16] M. J. Owen Surface tension of polytrifluoropropylmethylsiloxane Journal of Applied Polymer Science 35 (1988) 895ââ¬â901 [17] D. K. Owens, R. C. Wendt. Estimation of the surface free energy of polymers. Journal of Applied Polymer Science 13, (1969) 1741-1747 [18] J.M.G. Cowie, I.J. McEwen, J. VeliÃâà koviÃââ⬠¡Dynamic mechanical spectra of poly(itaconic acid esters) containing phenyl and cyclohexyl rings. Polymer , 16 (1991) 869-872. [19] D. RadiÃââ⬠¡, C. Daà ±in, A. Opazo, A., L. Gargallo, Functionalized Polymers 1. poly(dichloroalkyl itaconate)s. Synthesis and Solution Properties. Makromol. Chem., Macromol. Symp. 58,(1992) 209-213 [20]D. RadiÃââ⬠¡, L. Gargallo, Synthesis, Solution behavior and reactivity ratios of vinylpyrrolidone-co-monoalkylitaconate and vinylpyrrolidone-co-dialkylitaconate, Macromolecules, 30 (1997) 817-825 [21] B.R. Baker, R.E.. Shaub, G.H. Williams, Oxidation of primary alcohols to carboxylic Acids. Aguide to current common practice, G. Tojo, M. Fernandez Springer, J. Org. Chem., 17, (1952) 122-125. [22] L. Gargallo, D. Radicà ´, A. Leà ³n, Polymer conformation and viscometric behavior 3. Synthesis, characterization and conformational studies in poly(mono-n-octyl itaconate) Makromol. Chem. 186, (1985) 1296. [23]. Burtle, J. G., Turek, W.N. J. Org. Chem., 19, 1567 (1954). [24]. L. Gargallo, M.I. Muà ±oz, D. RadiÃââ⬠¡, Polymer conform,ation and viscometric behavior 1. Conformational transition in poly(benzylmethacrylate) in dilute solution Polym. Bull. 10, (1983) 264-270. [25] Handbook of Chemistry and Physics, 79th ed., Ed., David R. Lide (CRC, Boca Raton), (1999). [26] Handbook of Data on Organic Compounds, Ed. Robert C. Weast and Melvin J. Astle (CRC, Boca Raton), (1985). [27] Brandrup J., Immergut E.H. Polymer Handbook, Third Edition, Ed. John Wiley sons, New York, (1989). [28]L. Gargallo, D. Vargas, N. Becerra, C. Sandoval, C. Saldà as, A. Leiva, D. RadiÃââ⬠¡, Supramolecular structures. Organization and Surface behavior at interfaces, Macromol Symp., 278, (2009) 80-88. [29]C. Saldà as, L. Gargallo, C. Sandoval, A. Leiva, D. RadiÃââ⬠¡, J. Caballero, M Saavedra, F. Gonzà ¡lez-Nilo, Polymer 50 (2009) 2926-2932. Table 1. Surface free energy (SE) of poly(diisoalkylitaconates)s Table 2. Surface free energy (SE) of poly(2-chloroethyl diitaconate) and poli(3-chloropropyl diitaconate) Table 3. Surface free energy (SE) of poly(monoitaconate)s Table 4. Surface free energy (SE) of poly(phenylmethacrylate)s Table 5. Surface free energy for substrates Table 6.Values of the surface free energy for poly(phenylmethacrylate) at different film thicknesses 1
Friday, January 17, 2020
Career Journals
REPRODUCTIVE ENDOCRINOLOGISTA reproductive endocrinologist specializes in examining and treating disorders related with reproductive organs. They also recommend treatments and carry them out; making sure that the process goes through well. This professional will help Ms. King by assessing her body and any problems that could be associated to getting pregnant. Ms. and Mr. King will be assessed to find any problems related to their reproductive organs, as well as recommend treatments if there are any problems found and follow the progress of the treatment.ANDROLOGISTAn andrologist specializes in menââ¬â¢s health including illnesses and dysfunctions such as erectile dysfunction, infertility, and general trauma. They also interview and diagnose patients for their condition. They administer treatments to the patient as well as conduct tests and examine reports from the patient.This professional will examine Mr. Kind specifically to find any problems relating to reproductive dysfunction s or illnesses that affect men. The andrologist will follow up with Mr. King after conducting tests if there are any treatments needed to help the couple have a child.EMBRYOLOGISTAn embryologist performs laboratory procedures to create animal or human embryos. They retrieve eggs from the mother and sperm from the father to perform in vitro fertilization, as well as prepare the embryos for insertion into the patient. The process of inserting the sperm into the egg (intracytoplasmic sperm injection) is done by the embryologist. They also prepare the embryo for transfer into the patient, making sure the embryo is in good shape, and cryopreserve any other embryos that will not be used during the process. This doctor will give the couple a very advanced choice towards having a prepared pregnancy, informing them on how the process is and what they will have to do to have the gender of their liking.There come very small risks with the Preimplantation Genetic Diagnosis. This procedure is do ne by the embryologist made from the sperm of the father and the eggsà of the mother. Three days after starting the process, the embryos have divided into various embryos, and the embryologist is able to take a cell from each embryo to determine the sex. The embryo with the desired sex would then be implanted in Ms. King. There is a very small risk of damaging the embryo, since it is an extremely early stage and is handled carefully. It is also proven that it does not increase the chance of birth defects. The best part is that it is 99% accurate and is the most recommended alternative when trying to have a planned baby. The only downside would be the price, which is $2,500 ââ¬â $7,000, and is not covered by medical insurance.
Thursday, January 9, 2020
Immigrants and Immigration - Blessing or Burden Essay
Immigrants and Immigration - Blessing or Burden? Are immigrants a fortune of diversity, or a crushing burden? America has longed battled the issue about immigration. Today people in general have a very mixed feeling about the issue of immigration. Immigrants escaping from prosecution built the United States. Today, America firmly tries to solve many of our economical, political and social difficulties due to the burden of the thousand immigrants that enters the United States. Many people argue that immigrants steal jobs from the loyal Americans. Overcrowds schools, ruin health care system and abuse health and public and federal services. Michael Huffington, a former member of the U.S House of Representatives from California, explains:â⬠¦show more contentâ⬠¦It said. ?In truth Immigrants workers stimulate local economies, create jobs and pay far more in taxes than they receive in public services. Those who oppose this theory conclude that immigrants displace more than 1 million natives in 1992, and those Americans displaced c ost the U.S $6.1 billion dollars annually from immigrant competition. Both of these views were based on costs and unemployment, but another chapter in this issue, is the education element. How far should we go to educate our immigrant?s children? As more Immigrants pour in the United States, more and more immigrant children enter the U.S schools. Many critics argue that educating immigrants are too expensive. All in all the U.S spends $175-200 million annually on bilingual programs. These bilingual programs cost $650 a year for each student. Keep in mind that there are over two million immigrant students enrolled in the U.S schools. Just think if the United States took $1 billion we spend educating illegal immigrants in California Schools, it would allow us to put anew computer on every 5th grader school desk. 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Wednesday, January 1, 2020
Teaching Teaching Critical Thinking Skills - 1448 Words
Running Head: TEACHING CRITICAL THINKING SKILLS IN THE CLASSROOM 1 Teaching Critical Thinking Skills in the Classroom Patty J. Watson Lindenwood University TEACHING CRITICAL THINKING SKILLS IN THE CLASSROOM 2 Abstract This paper discusses the planning and execution of the concept-attainment strategy of teaching. The strategy has been found to be useful at all age levels and across all subject areas. The use of this strategy is not only to teach content, but also teach critical-thinking skills. The concept attainment strategy has been shown to increase interest and curiosity in lessons and provide some variety in presentation of lesson. It also lends itself well toâ⬠¦show more contentâ⬠¦The concept-attainment strategy asks students to draw on prior knowledge to make hypotheses about given sets of data (Eggers, Kauchak, 1996, p. 160). ââ¬Å"The teacher tries to get students to learn how to label, categorize, interpret data, explore relationships, identify critical relationships, make inferences, apply concepts, predict outcomes and explain reasoning.â⬠(PBWorks ) The teacher will present the students with examples and non-examples of a concept and the students will make hyp otheses as to what the concept is. As students make hypotheses, the teacher should write or display them somewhere visible so that students wonââ¬â¢t forget what has already been said. The choice of examples and non-examples is vitally important, because these will either lead the students to clarification or confusion. Once the students have examined all the evidence, they must do a final analysis and come up with a final hypothesis. The teacher will then state whether they are correct. During the presentation of hypotheses, it is crucial that students voice their thinking aloud, not only to clarify, but also to help other students that may be struggling. The students who are making the hypotheses will be forced to examine their thinking processes (Eggers, Kauchak, 1996, p. 159 ââ¬â 170). The concept attainment goal is to get students to become more independent and analytical thinkers, have students make connections
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