Paleolithic vs. Neolithic essays

Paleolithic vs. Neolithic essays There are many differences the Paleolithic and the Neolithic ages have. For instance their housing, means of living, and technology. The Paleolithic had camp sites, caves, and huts for their housing. Also their means of living were hunting and gathering. Their technology was having hunting and gathering tools made out of chipped stone, wood, or bone. For the gathering part of their lives they specialized in basketry. The Neolithic, however, had houses of mud or stone, which were more durable than tents or huts. Their means of living farming and herding and they specialized in craftwork. Their technology was having their farming tools made out of ground stone. They specialized in spinning, weaving, and pottery making. The Paleolithic, or Old Stone Age, was the longest. It began about 2 million years ago, when stone tools were first used by human, and ended with the close of the last ice age about 13,000 BC. Neolithic or New Stone Age Stone tools became highly polished and varied. By 6000 BC pottery appeared in the ancient Middle East, and copper was used for the first time in some regions. In other regions, the Neolithic arrived much later. In conclusion there were some similarities between the two ages but there were a lot more differences. ...

Example Sentences of the English Verb To Keep

Example Sentences of the English Verb 'To Keep' This page provides example sentences of the English verb Keep in all tenses including active and passive forms, as well as conditional and modal forms. Base Form keep / Past Simple kept / Past Participle kept / Gerund keeping Present Simple She keeps all her birthday cards every year. Present Simple Passive The key is kept by the doorman. Present Continuous He is currently keeping up the house while his parents are away. Present Continuous Passive The house is being kept up by Jason while his parents are away. Present Perfect Im afraid I havent kept up with the news recently. Present Perfect Passive The information has been kept up to date by Alice. Present Perfect Continuous We have been keeping bees for the last few years. Past Simple She kept a diary while she was on holiday. Past Simple Passive A journal was kept by the teacher on each student. Past Continuous They were keeping watch over the house when it was broken into by thieves. Past Continuous Passive The house was being kept watch over by the Wilsons when it was broken into by thieves. Past Perfect The had kept an expense journal before they moved to New York. Past Perfect Passive An expense journal had been kept before they moved to New York. Past Perfect Continuous We had been keeping up with the Jones before they moved to Los Angeles. Future (Will) She will keep the children while we are away. Future (Will) Passive The children will be kept by Cheryl while we are away. Future (Going to) Cheryl is going to keep the children during the holidays. Future (Going to) Passive The children are going to be kept by Cheryl during the holidays. Future Continuous They will be keeping a record of the meeting tomorrow afternoon. Future Perfect Janice will have been kept up to date so you can ask her. Future Possibility She might keep that present. Real Conditional If she keeps up exercising, she will be in great shape. Unreal Conditional If she kept up exercising, she would be in great shape. Past Unreal Conditional If she had kept up exercising, she would have been in great shape. Present Modal She should keep up with the class. Past Modal Harry might have kept up with the developments. Quiz: Conjugate With Keep Use the verb to keep to conjugate the following sentences. Quiz answers are below. In some cases, more than one answer may be correct. She _____ the children while we are away.She _____ a diary while she was on holiday.The_____ an expense journal before they moved to New York.Janice _____ up to date so you can ask her.If she _____ up exercising, she would have been in great shape.The key _____ by the doorman.We _____ bees for the last few years.A journal _____ by the teacher on each student.Im afraid I _____ up with the news recently.Cheryl _____ the children during the holidays. Thats the plan. Quiz Answers will keepkepthad keptwill have been kepthad keptis kepthave been keepingwas kepthavent keptis going to keep

Certification and Standardization of Mediators Essay

Certification and Standardization of Mediators - Essay Example While it is true in most states a private individual can set himself or herself up as a private mediator, having the sanction of the State and the judiciary is what sets others apart from a mediocre mediator with no training and creates a realm of professionalism. It stands to reason that any kind of profession should have standardized training and credentials. In many states a person can offer private mediation services without taking a class, passing a test or having a special license or certification. Other States require certification from 20 hours to 40 hours, plus continuing education units, according to the Mediation Training Institute International. A few states require a substantive understanding of the area of law to be mediated and stop short of requiring a juris doctor degree. Several universities now offer master’s level degrees in the new area of mediation and alternative dispute resolution (Notre Dame, Creighton Law, Colorado Tech, Regis and Baker University to name but a few). Hawai’i, according to the Hawai’i State Judiciary (1996), is one of the States with minimal requirements. Professions, such as chiropractors, Certified Public Accountants and lawyers, must all receive rigorous training and pass a State test in order to receive their credentials. It is clear from the assigned reading materials that there is a model code of professional behavior to achieve positive results in mediation. Indeed, the American Bar Association endorses a specific standard (2000). Without a certain level of training and testing there is no way to regulate standards of behavior and practices within the profession of mediation. As a nascent field, the lack of standardization is normal. At one time a lawyer did not attend college of any sort and became a lawyer by simply reading the law under an older lawyer. That model has its

Multiphoton Excitation for organic complex Essay

Multiphoton Excitation for organic complex - Essay Example wo photon absorption active; but, it is not guaranteed that they will exhibit interesting and useful three photon absorption properties such as frequency up-converted lasing [10]. Based on this reason, our University Department of Chemistry Prof Ricky Wong Man Shing and his student Dr.Xin Jiang Feng have developed and synthesized a new set of organic complexes p-PhN-OF(n)-TAZ n = 2 to 6 from deep investigation and collection of fundamental information and applications such as multi-photon properties and multi-photon cavityless lasing etc. The most important aspect is that it can let us explore and understand the more Physics behind the discovery. In this chapter, am going to analyse the use of p-PhN-OF(n)-TAZ series for a set of nonlinear optical experiments to verify the multi-photon properties. The p-PhN-OF(n)-TAZ series are type of D-ï  °-A using oligofluorenes (OF) as a ï  ° conjugated core end capped in which D is the end capped with the electron – donating diphenylam ino group and the unconventionally employed electron-deficient 1,2,4-triazole (TAZ) derivates as an acceptor designed and synthesized for multiphoton absorption investigation [10]. The electron was pushed from Donor (D) to pull side of Acceptor (A) in the ï  °- conjugation system which is called intramolecular charge transfer. In addition, the size of length of conjugation is related to enhance the cross section value of two-photon absorption and three-photon absorption [11]. Unless, the value of cross section is reach to saturation level. Under fig 4.1, the linear absorption spectra of the organic materials p-PhN-OF(n)-TAZ series (n = 2 ~ 6) was dissolved in Toluene solution, the series exhibits the two absorption peaks characteristics. The weak absorption peak appears around 300-310 nm attributed to the nï‚ ®Ã¯  °* transition of triarylamine moieties and the broad absorption band spanning from 378-415 nm corresponds to the ï  °Ã¯â€š ®Ã¯  °* transition of fluorene-based ï  °-conjugated core. The

Controversial novels Essay Example for Free

Controversial novels Essay Argued to be one of Hardys most controversial novels, published in 1891 during an era when the underprivileged classes of society, were submissive to superstitious beliefs in particular those such as luck spiritual beings and ultimately fate which were the foundations of lower class civilisation, Tess of the DUrbervilles presents a story of Fate toying with the life of the Heroine Tess. Fate is an influential part of the plot because it is what dictates her life. Events in the beginning of the novel begin a domino effect that cannot be reverse, thus Her fate is already chosen and all she can do is live through the events that happen to her. Whilst Walkers Colour purple is written during an era of gender social and racial inequalities narrated through Celie whose life consisting of an abundance of obstacles refuses to give into the Fate which determined the lives of poor uneducated black females during the 1930s. What exactly is Fate, is it in our personalities, actions and character or are our lives controlled by a supposed force or power which predetermines events in our lifes, meaning regardless of what we do we are unable to change our destiny. This theme is explored thoroughly by Thomas Hardy through his heroine Tess who is portrayed as a victim of fate throughout the novel, chance and coincidence bring about disasters in the novel that we can claim occur due to fate, it appears the main characters are subject to forces beyond their control. The author employs a very fatalistic plot throughout the novel making Tess endure whatever is thrown at her . In the first chapter of the book the horse Prince dies, this is seen as Tess fault as she falls as sleep due to being exhausted, this happens at night when the weather is very depressed. Hardy uses pathetic fallacy by claiming the atmosphere was pale, this makes the reader feel tension and also an expectation of tragedy . This scene is similar to that of the one at the chase when Alec finds Tess unconscious and may have raped her which is ultimately up to speculation. It is clear that Hardy uses the death of prince to create a sense of foreboding as this episode and the one at the chase are extremely similar, on both occasions Tess has fallen asleep due to tiredness and also the weather is used as an indication for what is to follow. From this we can question whether these events are down to fate and also ask if Hardy pre-determines Tess fate and future through her early actions thus her future is unalterable so there is nothing she can do to change. This has lead to the critic The Irvine Howe has writing: May we see her purely as a victim, like the white horse, the pheasants, the animals who are killed at harvest time? Hers is a poor wounded name This supports The interpretation that Tess life was controlled by Fate the just like the events in the novel such as the horses death and the death of the pheasants which all acted as a sense of foreboding and events which pre determine Tess death. Towards the latter stages of the novel during chapter 46, Hardy again emphasises the significant role Fate has played in Tess life and misfortunes. Firstly at the bottom of page 320 Tess states How can I pray for you? When I am forbidden to believe that the great power who moves the world would alter his plans on my account? Tess is telling Alec that she has lost her belief in God as her prayers do not move him. Therefore she is indicating this is happening because God already has his plans made and what she wants makes no difference because she is not important enough for him to change them, thus empowering the element of Fate and its restrictions on her ability to change. Alice Walker, author of The Colour Purple approaches the theme of Fate and destiny in a similar way to Hardy to a certain extent, in The Colour Purple the character Celie goes through a series of events at the beginning of the novel, she is raped by her father on several occasions is forced to give away the children that she conceived through him then her sister Nettie is forced to leave the home in which Celie lives due to her Husband Mr , but later on in the novel we learn that Nettie is now living with the family that adopted her sisters children. This shows that Alice Walker purposely portrayed Celies life as a victim of Fate, but gives her character an opportunity to resist this fate which results in a positive outcome for Celie. Its possible to say that Walker highlights the fact that although we may be victims of Fate we are able to control this Fate and our, she does this by showing that Celie is in fact not a victim of fate and unlike Tess her own actions are what allow her to change her destiny. We can say this because Celie confides in God through her letters, giving her hope and belief and she restrains herself from killing the man who has brought her pain and suffering, Mr , unlike Tess . Celies ability to change and prevent Fate from controlling her life is ultimately down to the letters she writes to God, she tells her sister Nettie Long as I can spell G-o-d I got somebody along She believes she is never alone or hopeless as long as she has God in her life, writing to God gives her hope, this hope is what helps her overcome the negative aspects of her Fatalistic path that seemed as though her life would be controlled by abusive males that would drive her to murder her husband just like Tess did. On the other hand Tess Fate is once again predetermined by Hardy in chapter 41 when she stumbles upon dying pheasents and puts them out of their misery by bringing their inevitable deaths to an end prematurely Poor darlings-to suppose myself the most miserable being on earth in the sight o such misery as yours! she exclaimed, her tears running down as she killed the birds tenderly. This Fatalistic event represents Tess destiny as she to will die due to her neck breaking as she will later be hung, Hardy uses this sense of foreboding once again signifying the belief that her character is her Fate, she is unable to change this, nothing she does will alter it. Similarly but with a contrasting outcome, in Colour Purple Fate re-emerges as killin Mr begins to dawn on Celies mind. How Im gon keep from killing him Naw I think I feel better if I kill him, I say I feels sickish. Numb, now. Mr has abused Celie to the extent that she contemplates killing him, at this stage of the book readers are likely to speculate whether Fate has chosen this path for Tess, is this her destiny? Will she have to emulate Tess action to end her misfortunes? Or will she be able to alter her Fate through her hope in God and rational actions? Although she doesnt go on to murder Mr , through God and her companion Celie she finds the courage to speak up against Mr and leave him, ultimately changing her Fate which is something Tess was unable to do You a low down dog is whats wrong. Its time to leave you and enter into the creation. And your dead body just the welcome mat I need. Here Walker shows her strength and courage obtained through her hope in God. The authors use of foreboding throughout the novel can be seen as a representative of fate, Hardy believed that what happened to us was a product of our personality, class, status and the way in which we view life therefore Tess pride and her concern for Angels reputation after he leaves her prevents her from seeking help at an early stage of her troubles can be seen as her own actions but in Hardys view our own actions were down to fate , she ends up confiding in Alec which leads to disaster. From this we can question whether Tess actions lead to her downfall or was it Fate? This is demonstrated at the beginning of the final paragraph, hardy writes Justice was done, the president of immortals had ended his sport with Tess. Hardy is telling us Fate has finished playing with its victim, Tess. He may have done this to further draw attention to his beliefs that we are subject to a immoral force beyond our control that we are forced to endure and that religion does not have bearing on any events in our life. This is a viewpoint that was developed by critic Irving Howe who too believed Tess fate had already been predetermined, Proposing this is why Hardy named the final phase of the novel fulfilment. Furthermore, another way Hardy depicts Tess as a victim of Fate is through the language he uses, particularly in the last phase of the novel as he named it fulfilment thus this is a play on words as we are left to question what has been fulfilled. It is possible to say Hardy believed Fate had been fulfilled it had played its role in bringing Tess to her tragic downfall. Walker presents Celie as a victim of Fate like Hardy does Tess, however Walker stresses the point that we are able to change our Fate and destiny, this is significant as the colour purple which is the colour of the purple flowers represent spirituality hope. She is almost trying to convey the message that, Fate can be overcome as long as hope is present, where as Hardy purposely doesnt give Tess any chance of overcoming her Fate, he deliberately does this to assert his negative view on religion, Walker gives her character hope through God, this is what enables Celie to overcome her so called Fate or Destiny whilst Hardys pessimistic belief of religion deters him from doing this. Through his novels Hardy repeatedly articulated that chance and coincidence that bring about disaster are ultimately Fate, thus he empowers his belief through Tess that characters are subject to forces beyond their control. This is similar to another of his novels, The Return of the Native. Throughout The Return of the Native bad things happen to good people, this is a depiction of his atheist perception that God does not exist and if there is a God it is lacking in morals, because good people, such as Tess are the victims of bad events and tragedy in life due to Fate. Like Hardy himself said Once a victim, always a victim of fate.

The Almost Perfect Day :: essays papers

The Almost Perfect Day Some of the best times I have in the summertime are riding my jetski. One of my best friends, who also has a ski, go out almost everyday in the summer. We would sometimes even wake up around six o'clock in the morning just to ride the glossy surf at Sandy Hook. There was one great day I had on the ski†¦ It was around seven in the morning when I heard my phone ring. It was my buddy Jared waking me up to tell me to meet him at the Channel Club Marina to go out on our jetskis. I told him I would meet him there in about a half-hour. When I got to the marina Jared told me the swells at Sandy Hook were about five foot, which makes for nice wave jumping. We got our skis all ready; we filled them up with oil and gas, checked the spark plugs, and checked the engine. Finally, we were ready to head out to the ocean for a day of fun. We made our way out down the Navesink River, passing McCloone's and The Quay in Seabright doing around sixty miles per hour. Man, that's the best feeling around. We then headed under the Sandy Hook Bridge, and I could already feel the swells beneath my ski.It was early morning, so all the fishing boats from Highlands were heading out with us. The early morning fog was just lifting too, so that made for some nice scenic views of all the little islands and coves that make up Sandy Hook. We entered the channel that leads right into the ocean and just flew the rest of the way to our destination. As we came around the northern most tip of the Hook we clearly saw that the waves were pretty huge, especially for jetski riding. We both raced to the first big wave we saw, hit it head on, and must have launched at least six feet into the air, which was nothing compared to the air that would come later. About an hour went by and both of our gas tanks were running a little low. We decided to head back toward the Sandy Hook Bridge to get gas at a place called Bahrs in Highlands, which is also a restaurant. So we jetted back toward the bridge and filled our jetskis up to the brim with gas.

Pervapertion Overview

Membrane selectivity : what goes through and what gets rejected 2. Flux: Denote the amount of output (measured in relation to membrane area , thickness and time). What will influence the performance? Feed temperature: Refers to temperature of the feed stock or any other representative between feed and retentate streams. Membrane thickness: Refers to dry thickness. 3. Kinetic diameter: diameter of pore needed to let a specific molecule passPerformance Parameters – Selectivity 0 Membrane selectivity allows us to choose certain molecules to pass through the membrane 0 Improved membrane selectivity will increase absorption rates 0 more efficient and possible cost reduction 0 This can be achieved by better understanding of the material selected for the membrane Impact of Feed Temperature on Flux 0 Feed Temperature 0 Molecules movement increases exponentially with temperature 0 improve flux rate Impact of Membrane Thickness on Flux The thinner the membrane, the faster Influencing Pa rameters – Kinetic Diameter (1)Kinetic diameter can be understood as the diameter of a pore needed to let that specific molecule pass Source: Fundamentals and applications of pervaporation through Zeolite membranes, 2004 Influencing Parameters – Kinetic Diameter (2) Key Cost Components For Pervaporation The operating cost of pervaporation is heavily reliant on the cost of generating heat and the cost of the membrane used Current trend: decreasing heating cost and decreasing membrane cost Source: http://www. scielo. org. ar/scielo. php? Decreasing Trend in Membrane Cost from 1989 to 2000 Reasons of decreasing membrane cost: .Membrane surface area per module increase 0 lesser membrane modules to produce the same amount of output 2. Membrane mass production 0 production cost decrease 3. More compact module 0 cost savings in civil works overview of UF technology today, Desalination 131 (2000) 17-25 Similar Decreasing Trend in Membrane Cost from 1970 to 2010 Source: America n Membrane Technology Association (AMTA), wrww. amtaorg. com Improvement in cost of heat generation -Cost of Conserved Energy (CCE) summarizes annual costs associated with saving a GJ (approximately 0. 95 MBtu) of energy with a particular measure.Table shows that energy efficient measures lead to energy savings that have short payback periods from immediate to 2. 7 years. -Industry is looking towards reducing cost of heat generation Improvements in membrane 1) Membrane preparation methods 0 more methods are developed to prepare membranes with different structures for different application 0 Phase separation method developed in 1960 0 Scanning Electron Microscope became available in 1960 0 helped in the detailed study of the membrane structure 2) Membrane selective layer is getting thinner over 30 years 0. 2 – 0. 4 pm