Craniates - Crainata - the Animal Encyclopedia

Craniates - Crainata - the Animal Encyclopedia Craniates (Craniata) are a group of chordates that includes hagfish, lampreys, and jawed vertebrates such as amphibians, birds, reptiles, mammals, and fishes. Craniates are best described as chordates that have a braincase (also called a cranium or a skull), mandible (jawbone) and other facial bones. Craniates do not include simpler chordates such as lancelets and tunicates. Some craniates are aquatic and have gill slits, unlike the more primitive lancelets which have pharyngeal slits instead. Hagfishes Are the Most Primitive Among craniates, the most primitive is the hagfishes. Hagfishes do not have a bony skull. Instead, their skull is made up of cartilage, a strong but flexible substance that consists of the protein keratin. Hagfishes are the only living animal that has a skull but lack a backbone or vertebral column. First Evolved Around 480 Million Years Ago The first known craniates were marine animals that evolved about 480 million years ago. These early craniates are thought to have diverged from lancelets. As embryos, craniates have a unique tissue called the neural crest. The neural crest develops into a variety of structures in the adult animal such as nerve cells, ganglia, some endocrine glands, skeletal tissue, and connective tissue of the skull. Craniates, like all chordates, develop a notochord that is present in hagfishes and lampreys but which disappears in most vertebrates where it is replaced by the vertebral column. All Have an Internal Skeleton All craniates have an internal skeleton, also called an endoskeleton. The endoskeleton is made up of either cartilage or calcified bone. All craniates have a circulatory system that consists of arteries, capillaries, and veins. They also have a chambered heart (in vertebrates the circulatory system is closed) and a pancreas and paired kidneys. In craniates, the digestive tract consists of a mouth, pharynx, esophagus, intestine, rectum, and anus.   The Craniate Skull In the craniate skull, the olfactory organ is located anterior to the other structures, followed by paired eyes, paired ears. Also within the skull is the brain which is made up of five parts, the romencephalon, metencephalon, mesencephalon, diencephalon, and telencepahlon. Also present in the craniate skull are a collection of nerves such as the olfactory, optic, trigeninal, facial, accoustic, glossopharygeal, and vagus cranial nerve.   Most craniates have distinct male and female sexes, although some species are hemaphroditic. Most fish and amphibians undergo external fertilization and lay eggs when reproducing while other craniates (such as mammals) bear live young. Classification Craniates are classified within the following taxonomic hierarchy: Animals Chordates Craniates Craniates are divided into the following taxonomic groups: Hagfishes (Myxini) - There are six species of hagfishes alive today. Members of this group have been the subject of much debate about how they should be placed within the classification of chordates. Currently, hagfishes are considered to be most closely related to lampreys.Lampreys (Hyperoartia) - There are about 40 species of lampreys alive today. Members of this group include northern lampreys, southern topeyed lampreys, and pouched lampreys. Lampreys have a long, slender body and a skeleton made of cartilage.Jawed vertebrates (Gnathostomata) - There are about 53,000 species of jawed vertebrates alive today. Jawed vertebrates include bony fishes, cartilaginous fishes, and tetrapods.

Atom Definition and Examples

Atom Definition and Examples An atom is the defining structure of an element, which cannot be broken by any chemical means. A typical atom consists of a nucleus of positively-charged  protons and electrically neutral  neutrons with negatively-charged  electrons orbiting this nucleus. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. The number of protons defines the identity of an atom or its element. Atom Size, Mass, and Charge The size of an atom depends on how many protons and neutrons it has, as well as whether or not it has electrons. A typical atom size is around 100 picometers or about one ten-billionth of a meter. Most of the volume is empty space, with regions where electrons may be found. Small atoms tend to be spherically symmetrical, but this is not always true of larger atoms. Contrary to most diagrams of atoms, electrons do not always orbit the nucleus in circles. Atoms can range in mass from 1.67 x 10-27 kg (for hydrogen) to 4.52 x 10-25 kg for superheavy radioactive nuclei. The mass is almost entirely due to protons and neutrons, as electrons contribute negligible mass to an atom. An atom that has an equal number of protons and electron has no net electrical charge. An imbalance in the numbers of protons and electrons forms an atomic ion. So, atoms may be neutral, positive, or negative. Discovery The concept that matter might be made of small units has been around since ancient Greece and India. In fact, the word atom was coined in Ancient Greece. However, the existence of atoms was not proven until John Daltons experiments in the early 1800s. In the 20th century, it became possible to see individual atoms using scanning tunneling microscopy. While its believed electrons formed in the very early stages of the Big Bang formation of the universe, atomic nuclei did not form until perhaps 3 minutes after the explosion. At present, the most common type of atom in the universe is hydrogen, although over time, increasing amounts of helium and oxygen will exist, likely overtaking hydrogen in abundance. Antimatter and Exotic Atoms Most of the matter encountered in the universe is made from atoms with positive protons, neutral neutrons, and negative electrons. However, there exists an antimatter particle for electrons and protons with opposite electrical charges. Positrons are positive electrons, while antiprotons are negative protons. Theoretically, antimatter atoms might exist or be made. The antimatter equivalent to a hydrogen atom (antihydrogen) was produced at CERN in Geneva in 1996. If a regular atom and an anti-atom were to encounter each other, they would annihilate each other, while releasing considerable energy. Exotic atoms are also possible, in which a proton, neutron, or electron is replaced by another particle. For example, an electron could be replaced with a muon to form a muoinic atom. These types of atoms have not been observed in nature, yet may be produced in a laboratory. Atom Examples hydrogencarbon-14zinccesiumtritiumCl- (a substance can be an atom and an isotope or ion at the same time) Examples of substances that are not atoms include water (H2O), table salt (NaCl), and ozone (O3). Basically, any material with a composition that includes more than one element symbol or that has a subscript following an element symbol is a molecule or compound and not an atom.

Political Science Reflection Paper Essay Example | Topics and Well Written Essays - 750 words

Political Science Reflection Paper - Essay Example king is naked, and hence, Kingdon is liable to be beheaded by the American capitalists who, for years, promoted the idea that America has the best form of government. Evidently, there are many people in the American society like me who are made to believe for years that the American public policies are unique and the best in the world. This is all the more so because of the concept of liberalism, that means one is allowed to decide ones own destiny. In other words, the nation does not interfere in the lives of people as much as other nations do. This is a stunningly attractive proposition considering the fact that the tax American people pay is much less than the amount people in industrialized nations pay. However, Kingdon points out that the founders of the nation have done a dubious job by crafting the policies of government with ideologies of distrust in government, thus preferring a limited government. In addition is the check and balance among the legislative, judicial, and executive branches. In sharp contradiction with my view that this check and balance will help the nation continue with its great unique features of less governmental intervention, Kingdon has shown how tricky it was from the part of the nation builders to develop such a system. It, in practice, ensures that even if American people or the leaders they elect want to make radical changes in the policies, it becomes a difficult task because of the burdens involved in passing laws and policies of reformation in the existing check and balance system. Evidently, the ones who are eager to make changes like the Native Americans and the African Americans will never be able to make radical changes in the governmental policies, and this is the uniqueness many people including me believed the best in the world. In addition, Kingdon points out how greatly the myth of equal opportunities has affected the public policy system in America. It is pointed out that this equal opportunity proposition also

Operation management - Operational Analysis Essay

Operation management - Operational Analysis - Essay Example Like any other Wal-mart store, ASDA is well known for its bargaining pricing of its products and services that it sells. It is also known for giving access and selling a wide range of products and services to its customers ranging from accessories and clothing to gardening and household equipment. Services include photography and pharmacy services. The motto of ASDA Wal-mat store Inc has been to help consumers save money and also help consumers lead a cheaper, but higher and better living standard (ASDA, 2010). The main objective of this company is to maintain excellent customer service by providing quality products at affordable prices. Another objective is to improve the sales of the store and implement productivity initiatives. The company has enjoyed a number of successes, including the ability to buy in bulk, sell products and services in huge volumes, and be able to survive on reduced on low profit margins. This has in turn helped the organization to pass on the cost benefit to the consumers and at the same time be able to give consumers more value for money which has been a crucial part of the success of the company in a highly competitive market. The paper will take an analysis of ASDA Wal-mart stores mainly concentrating on its current operations management activities. Introduction In any organization or company, operational management deals with the design and management of processes, products, services, and supply chains (BARNES, 2008). This mainly looks at the development, acquisition, and utilization of resources that are required by the organization in order to deliver goods and services to its consumers. Operational management ranges from the strategic level to the tactical level and finally, to the operational level. In other words, operational management is a function that aims at making sure that there is a smooth flow of processes to convert input into outputs in a cost effective and efficient way. There is normally demand for companies to su stain themselves and survive in a competitive market. However, there are two ways which company can adopt to which are cutting their costs or increasing their revenue. In both cases, the OM capacity of an organization is challenged. In this competitive market where competition increases all the time, a company like ASDA to implement effective operational management tools and systems in order to ensure that the production of goods and services is maintained smoothly and that the demands of customers are fulfilled quickly. OM attempts to create the desired balance between costs and revenue to get the maximum profit and at the same time maintain the quality of goods and services. Normally, big companies like ASDA have huge responsibilities to be able to keep up with the operational management activities involving capacity planning, manpower planning, acquisition, and control, scheduling, managing quality, material control, cost control, training and development for employees, and facil ity location and layout planning (LOADER, 2007). Information and Analysis Current Operations Below is an overview

Essay on Free

Essay on Free Will and Determinism Essay Explain what freedom and physical determinism are and why they seem to conflict. How would you resolve this conflict? Give reasons for your answer. Physical determinism is believing in the fact that every event has a cause. (Theodore Sider, pg 113) And that a chain reaction of such would cause an inevitable event to occur. E. g. The invasion of Poland by Hitler in 1939. (Theodore Sider, pg 115) Freedom is the belief that you are able to act on your own free will irrespective of what event has occured, that a decision you make is entirely of your own volition. It is the belief that our life is not predetermined and we are able to influence our future. FROM A SCIENTIFIC POINT OF VIEW, THE DECISIONS WE MAKE AND HOW WE BEHAVE ARE STUDYABLE, EXPLAINABLE AND IF GIVEN ENOUGH TIME, PREDICTABLE AND CONTROLLABLE. (THEODORE SIDER, PG 114) THIS WOULD INDICATE WHEN THE WHY WE DO WHAT WE DO IS DISCOVERED, WE CAN FULLY DETERMINE WHAT A PERSON WOULD DO IN A CONTROLLED ENVIRONMENT, THUS LEADING TO THE DETERIORATION OF FREEDOM FOR THAT PERSON. There are 3 ways to resolve this conflict, of which the first is to reject the belief of freedom in what is called hard determinism. (Theodore Sider, pg 117) A complete rejection of freedom would demean any meaning of living so I will not consider it. THE OPPOSITE OF THIS IS THE LIBERTARIAN, WHICH BELIEVES THAT PEOPLE ARE EXCLUDED FROM DETERMINISM AS THE SCIENCE IS UNABLE TO COMPLETELY STUDY , OR RATHER, MAKE SENSE OF HUMAN BEHAVIOR AND PREDICT WHAT A HUMAN CAN DO. (THEODORE SIDER, PG 119) I FEEL THIS IS BECAUSE OF THE DIFFICULTY IN OBTAINING THE ABSURD AMOUNT OF INFORMATION AND FACTORS THAT WILL ALLOW FOR THE PREDICTION OF HUMAN BEHAVIOR. The problem with the libertarians explaination is the lack of definition for the word freedom, as rejecting determinism would mean actions of a person would be uncaused, and therefore random. (Theodore Sider, pg 119) Thus an idea called agent causation is found, such that you only act freely when your action is not caused in the mechanistic way but is caused by you of your own free will. This does not work as the the realm of physics has to be rejected in order for the libertarian to fully resolve this conflict. THE LAST AND MOST VIABLE METHOD TO RESOLVE THIS CONFLICT IS CALLED SOFT DETERMINISM (THEODORE SIDER, PG 125) SOFT DETERMINISM STATES THAT A FREE ACTION IS ONE THAT IS CAUSED BY THE PERSONS BELIEF AND DESIRES, PROVIDED THAT THOSE BELIEFS AND DESIRES FLOW FROM WHO THE PERSON IS. (THEODORE SIDER, PG 130) IT IS A THEORY THAT ACTIONS ARE CAUSED BY ONES BELIEFS AND DESIRES. THE FIRST-ORDER DESIRE ARE DESIRES TO DO THINGS. WHERE A SECOND-DESIRE IS A DESIRE TO HAVE A FIRST-ORDER DESIRE. WHEN THE FIRST-ORDER DESIRE IS CAUSED BY THE SECOND-ORDER DESIRE, THEN IT IS SAID TO BE FLOWING FROM WHO THE PERSON IS. (THEODORE SIDER, PG 131) A person goes to school for education because he believes that it is the best alternative he has as opposed to starting to work without an education. This is a case where a first-order desire comes from a second-order desire, which then implies the action of going to school comes from the self. A PERSON AFFLICTED WITH A COMPULSION TO HOARD, ALTHOUGH HE MIGHT DESIRE TO NOT DO SO, HIS ACTIONS OF HOARDING IS SAID TO BE DONE WITHOUT FREE WILL. FROM THIS STEMS FIRST AND SECOND ORDER OF DESIRE, WHERE HIS SECOND ORDER OF DESIRE IS NOT TO HOARD, AND HIS FIRST ORDER OF DESIRE IS TO HOARD, THIS CONTRADICTS AND HIS ACTIONS ARE SAID TO BE NOT OF FLOWING FROM THE SELF. REFERENCES Sider, T. (2005). Free will and determinism. In E. Conee, T, Sider (Eds. ), Riddles of existence: A guided tour of metaphysics (pp. 112-133). New York, NY: Oxford University Press.

The Timeline of Art :: Arts Artistic Painting Painter Essays

Timeline of Art The Thread: The thread which joins all the isms in the twentieth century are its slow evolution from one period to another. As artists from one concepts were exploring a certain idea that led to another either just for the sake of the curiosity or by sheer boredom. Therefore my paper deals with the evolution of different isms in this century. Fauvism: From 1904-7, for a very brief period, a few Paris painters evolved a style of painting that earned the name Les Fauves (wild beasts). Henri Matisse, Andre Derain and Maurice Vlaminck were the major contributors to this style of painting which gained popularity due to its apparent freedom of expression with the use of pure colors and exaggeration of drawing. Among all of the twentieth century art movements, this was the most transient and least definable. The three major painters' work was highly individual and shared only for brief periods. The momentary excitement that held these painters aloft and allowed them the maximum of freedom, deserted them as their work developed and matured. The hangover from this movement led to new means of expression. It was never a movement with aims that could be realized such as successive movements as Cubism was, but was a erratic process of experiments with possibilities suggested by the post- impressionist painters. Cubism: Cubism, which began very shortly after Fauvism, is exemplified by Pablo Picasso. In this movement the flattened space including background and foreground are related in a new and more abrupt manner. The first effect is of a camera in motion, a kaleidoscopic impression of the solid portions of the figure. This certain feature can be contrasted to the impressionist movements' works. Added to this kaleidoscopic quality is another new element. Picasso and his Cubist colleagues disintegrated the form into a series of simultaneously viewed but different aspects of the same subject. A cubist painter, to achieve a greater understanding, walked about the subject, observing it from significant various angles and recording them as his impressions of form. But this procedure led to actual destruction of form and its reduction to a series of decorative elements. Negro art and sculpture had a profound effect and it was quite extensively used by Picasso. Negro sculpture approved his subject in a more conceptual way than a naturalistic depiction, mostly by a western view. This resulted in forms that were more abstract and stylized and in a sense The Timeline of Art :: Arts Artistic Painting Painter Essays Timeline of Art The Thread: The thread which joins all the isms in the twentieth century are its slow evolution from one period to another. As artists from one concepts were exploring a certain idea that led to another either just for the sake of the curiosity or by sheer boredom. Therefore my paper deals with the evolution of different isms in this century. Fauvism: From 1904-7, for a very brief period, a few Paris painters evolved a style of painting that earned the name Les Fauves (wild beasts). Henri Matisse, Andre Derain and Maurice Vlaminck were the major contributors to this style of painting which gained popularity due to its apparent freedom of expression with the use of pure colors and exaggeration of drawing. Among all of the twentieth century art movements, this was the most transient and least definable. The three major painters' work was highly individual and shared only for brief periods. The momentary excitement that held these painters aloft and allowed them the maximum of freedom, deserted them as their work developed and matured. The hangover from this movement led to new means of expression. It was never a movement with aims that could be realized such as successive movements as Cubism was, but was a erratic process of experiments with possibilities suggested by the post- impressionist painters. Cubism: Cubism, which began very shortly after Fauvism, is exemplified by Pablo Picasso. In this movement the flattened space including background and foreground are related in a new and more abrupt manner. The first effect is of a camera in motion, a kaleidoscopic impression of the solid portions of the figure. This certain feature can be contrasted to the impressionist movements' works. Added to this kaleidoscopic quality is another new element. Picasso and his Cubist colleagues disintegrated the form into a series of simultaneously viewed but different aspects of the same subject. A cubist painter, to achieve a greater understanding, walked about the subject, observing it from significant various angles and recording them as his impressions of form. But this procedure led to actual destruction of form and its reduction to a series of decorative elements. Negro art and sculpture had a profound effect and it was quite extensively used by Picasso. Negro sculpture approved his subject in a more conceptual way than a naturalistic depiction, mostly by a western view. This resulted in forms that were more abstract and stylized and in a sense

A Clean Well Lighted Place Analysis Essay

A Clean Well Lighted Place by Ernest Hemingway is a cryptic short story about a deaf man in a bar late at night with the waiter getting frustrated with him because he wishes to go home. The dialogue slowly turns to two waiters who inject a symbolic exchange. This entire piece of full of symbology and is in my opinion a story up the the interpretation of each individual reader. â€Å"In the daytime the street was dusty, but at night the dew settled the dust and the old man liked to sit late because he was deaf and now at night it was quiet and he felt the difference. In this sequence we see the first comparison made between light and darkness, and we see the daytime being described as dusty and the in the night the dew eliminated the dust. This state of moistness or lubrication perhaps represents a state of mental lubrication, free from the dullness of the day. It’s also interesting that a deaf man would be able to tell the difference between the sounds of the day and sounds of the night. In my opinion this means that at night when it’s expected to be desolate the man feels more at home than he does in the daytime when there is expected to be commotion. â€Å"Last week he tried to commit suicide,† one waiter said. â€Å"Why? † â€Å"He was in despair. † â€Å"What about? † â€Å"Nothing. † â€Å"How do you know it was nothing? † â€Å"He has plenty of money. â€Å"† This is a humorous dialogue about the condition of money vs happiness. The man is described as being in despair, but yet they know now what he has to be despaired about if he has means to provide him happiness. However they do not see the true ironic sadness of the situation. A old man is sitting alone in a cafe at night downing shots of brandy. It is obvious to the reader that the old man does not have a very pleasant life. They sat together at a table that was close against the wall near the door of the cafe and looked at the terrace where the tables were all empty except where the old man sat in the shadow of the leaves of the tree that moved slightly in the wind. A girl and a soldier went by in the street. The street light shone on the brass number on his collar. The girl wore no head covering and hurried beside him. † This is the second time the â€Å"shadow of the leaves of the tree† is mentioned, this is demonstrative by the author that this is important and essential symbology to understand. Obviously the eaves can produce no real shadow since it’s night, however since it is under an electric light the leaves produce a false shadow from a false light. The legal definition of false light is a â€Å"portrayal that is highly offense to a reasonable person† but not so much so that it’s defamation. This allows the old man sitting there to perhaps portray himself as offensive to the waiter, as we will see in a later exchange, but not so much so that he defames himself. The man is also able to view from the terrace the soldier and the women passing by. This might be the man looking down and reminiscing on memories of old. Another exchange that struck me was between the two waits discussing the events of the attempted suicide of the man. â€Å"†He’s drunk now,† he said. â€Å"He’s drunk every night. † â€Å"What did he want to kill himself for? † â€Å"How should I know. † â€Å"How did he do it? † â€Å"He hung himself with a rope. † â€Å"Who cut him down? † â€Å"His niece. † â€Å"Why did they do it? † â€Å"Fear for his soul. † â€Å"How much money has he got? † â€Å"He’s got plenty. † This exchange shows the audience the severity of this mans drinking, and drinking almost goes without symbology itself as an expression of relieving anything from stress, to recreation, to wallowing in pity. They again fail to recognize the plight and sorrow this man has, they suffer from a delusion that this man’s great wealth brings him joy and happiness, however again we can tell that it doesn’t. The waiter’s also state that the man’s niece who came and saved him did so out of fear for his soul, not fear for his life, but fear for his soul. To me this is indicative that this man’s life is in such a sorrowful that it’s not worth saving, but his soul is all that remains of him, and the only thing that is worth saving of him. Again we see in the continued dialogue between the two waiters, and we see the more they speak the more they reveal about this man. They also continue to speak about him in a false light, that is being offensive without defamation. â€Å"†He stays up because he likes it. † â€Å"He’s lonely. I’m not lonely. I have a wife waiting in bed for me. † â€Å"He had a wife once too. † â€Å"A wife would be no good to him now. † â€Å"You can’t tell. He might be better with a wife. † â€Å"His niece looks after him. You said she cut him down. † â€Å"I know. † â€Å"I wouldn’t want to be that old. An old man is a nasty thing. † â€Å"Not always. This old man is clean. He drinks without spilling. Even now, drunk. Look at him. † â€Å"I don’t want to look at him. I wish he would go home. He has no regard for those who must work. † The man stays up late because he is lonely, and had a wife, but the other waiter speaks of him in a false light because he says â€Å"A wife would be no good to him now† which would be in my opinion considered offensive. They also speak ill of his age, however the other waiter defends him by saying he is clean and doesn’t spill, even while drunk. Being clean represents the man exercising a lack of vulgarity, and he is civilized and dignified by not spilling, even in a compromised state of being intoxicated. They also continue to be offensive to him by one of the waiters stating â€Å"I don’t want to look at him. I wish he would go home. He has no regard for those who must work† The exchange between the two waiters further reveal the reason and life behind the lonely man in the cafe. â€Å"†Why didn’t you let him stay and drink? † the unhurried waiter asked. They were putting up the shutters. â€Å"It is not half-past two. â€Å"†I want to go home to bed. † â€Å"What is an hour? † â€Å"More to me than to him. † â€Å"An hour is the same. â€Å" â€Å"You talk like an old man yourself. He can buy a bottle and drink at home. † â€Å"It’s not the same. â€Å"No, it is not,† agreed the waiter with a wife. He did not wish to be unjust. He was only in a hurry. â€Å"And you? You have no fear of going home before your usual hour? † â€Å"Are you trying to insult me? † â€Å"No, hombre, only to make a joke. † â€Å"No,† the waiter who was in a hurry said, rising from pulling down the metal shutters. â€Å"I have confidence. I am all confidence. † â€Å"You have youth, confidence, and a job,† the older waiter said. â€Å"You have everything. † â€Å"And what do you lack? † â€Å"Everything but work. † â€Å"You have everything I have. † â€Å"No. I have never had confidence and I am not young. † â€Å"Come on. Stop talking nonsense and lock up. † â€Å"I am of those who like to stay late at the cafe,† the older waiter said. â€Å"With all those who do not want to go to bed. With all those who need a light for the night. † â€Å"I want to go home and into bed. † The hurried waiter speaks that he wishes to leave so he can get some sleep, and they reveal that the extra hour saved by the waiter meant more to the man than it did to the waiter. The two waiter’s eventually get into the topic of having youth and confidence, where one states that he has great confidence and youth and the other says he has never had confidence and is not young. This statement reveals more about the nature of the old man, showing that the old man lacked youth and confidence that he used to have, and drinks to regain what’s left of his dignity and pride, as demonstrated earlier. The older waiter also states that he doesn’t desire to leave earlier, as to provide a sebastion of hope and light for those who need it, like the deaf man. The waiter thinking to himself while sitting at the bar shows us the real reason why the deaf man tries to commit suicide, and the real reason why a clean and well-lighted place is needed in the middle of the night. Turning off the electric light he continued the conversation with himself. It was the light of course but it is necessary that the place be clean and pleasant. You do not want music. Certainly you do not want music. Nor can you stand before a bar with dignity although that is all that is provided for these hours. What did he fear? It was not a fear or dread. It was a nothing that he knew too well. It was all a nothing and a man was a nothing too. It was only that and light was all it needed and a certain cleanness and order. Some lived in it and never felt it but he knew it all was nada y pues nada y nada y pues nada. We see here now that the man wanted to end his life because it was nothing and he was nothing, and that a empty hollowness that he had. He did not despair and was not in grief, but simply felt an emptiness and only a clean well-lit place such as this cafe provided. In closing we find the older waiter conversing with himself â€Å"He disliked bars and bodegas. A clean, well-lighted cafe was a very different thing. Now, without thinking further, he would go home to his room. He would lie in the bed and finally, with daylight, he would go to sleep. After all, he said to himself, it’s probably only insomnia. Many must have it. † We find here that this older waiter does to some extent feel the same emptiness as the old man does. He find the daylight as a time to sleep, opposite of normal. He finds the daytime as a lack of activity, and the night as a time for activity. The waiter is in some ways institutionalized and imprisoned to the service of those who feel empty. After all of this we find the significance of all of this imagery and symbolism we see the story of a man whose life has essentially finished it’s course, only that his heart remains beating. We see a man who is often looked down upon because of the extent of his drinking and is seen in a â€Å"false light†. We find a man who does not drink to forget or drink to remember or drink because he is in sorrow or grief, but he drinks because of nothing. He drinks because he feels nothing and experiences nothing. We find that his wife and days of youth and confidence have left him and not he has absolutely nothing. This man and many others like this find cafe’s such as this one that are clean and well-lit to be bastions and beacons of hope to those who have this feeling of nothingness.