Friday, November 15, 2019
The Lamb and the Tyger Analysis
The Lamb and the Tyger Analysis William Blake was an 18th century visionary, poet, mystic, and artist. Blakes romantic style of writing allowed him to create contrasting views as those in The Lamb and The Tyger. From a young age Blake used his imagination that was frowned upon and unfortunately was never greatly appreciated during his lifetime. William Blake believed that it was the chief function of art to reveal the truth of the spiritual world by liberating imagination (Bowman 53). It wasnt until after Blakes death that his work finally received some attention. Known as a romantic, Blake continued throughout his writing to radically question religion and politics; He was very critical of the church, putting forth the effort to attack and question it. Blake put his own insight into his poems to raise the public awareness in a personal attempt to seek the truth. Perhaps he is most famous for his creative and simplistic Songs of Innocence and Songs of Experience that influenced the other Romantic poets with themes of good and evil, heaven and hell, and knowledge and innocence. With regards to religion, William Blake opposed the views of the Christian church and its standardized system. Blake, having more of a spiritual position than a religious one, considered himself as a monistic Gnostic, meaning that he believed what saved a persons soul was not faith but knowledge (Harris 1). Blakes view of religion was considered blasphemous, and in his works he was concerned with the character of individual faith than with the institution of the Church, its role in politics, and its effects on society and the individual mind (SparkNotes Editors 1). Blakes The Lamb and The Tyger is more suggestive to the nature of God. The idea is that the same God who made the lamb also made the tiger, so unless it is suggested that God created evil, then the tiger must not be evil. The fact that the same God created both the lamb and tiger suggest that they just represent two different sides of God: Two different aspects of existence. Blakes perception of good and evil isnt just one extreme to the other, instead, the ambiguity of evil isnt evil; it is just the other side of good. Blake technically didnt believe in a dichotomy, the division into two usually contradictory parts or opinions. Blake portrays his argument that a human being cannot be completely good or completely evil. This trait does not exist within human beings, and therefore does not exist in God. The other writers and minds of the 18th century were mainly deists, the belief based solely on reason. They did not show interest in the nature of God as Blake did, instead, reason was their god. In the poem The Lamb, William Blake incorporates his unique style through the use of religious symbolism, creative lines, and simple patterns. The Lamb was a part of a series of poems called the Songs of Innocence that was published in 1789. Poems that were more simplistic in style and nature became more contrition and prophetic in Songs of Experience. Through simplistic structure, he chose the narrator of a child, as in this poem, told through childlike eyes, speaking of the innocence in all of human life, and that the lamb is Christ, marveling over Gods creations. The dramatic perspectives and continual allusiveness of the lyrics in The Lamb have shown to be a key factor in Blakes writing and have been interpreted and reinterpreted by critics and readers ever since Blakes death. Blake utilizes his rhetoric genius by symbolically expressing the appearance of the lamb to that of the nature of God. Within the poem, Blake brings up an interesting concept by stating, He is called by thy name / For he calls himself a Lamb, the lamb not only suggest innocence and the meaning of life, but at the same time conveys the theme that Christ is the lamb (Blake 662). The poem comments on how he is meek and he is mild, thus giving God the characteristics of goodness and purity (Blake 662). This gives a varying contrast to Blakes poem The Tyger as it advocates the speculation of evil. William Blakes, The Tyger, is the poetic counterpart to the Lamb of Innocence from his previous work, Songs of Innocence, thus creating the expression of innocence versus experience What immortal hand or eye / Dare frame thy fearful symmetry (Blake 770). The Tyger is part of the continued series of lyrics titled Songs of Experience that was published in 1794, as a response to the Songs of Innocence. The Songs of Experience are interpreted as the child, conveyed in Songs of Innocence, matures to adulthood and is molded by the harsh experiences and negative forces that reality has on human life, thus shows the destructiveness of the tiger. Blake utilizes his deceptively complex ideas, symbolism, and his allusiveness to portray the essence of evil in The Tyger. Blake uses tyger instead of tiger because it refers to any kind of wild, ferocious cat. The symbolism of the hammer, chain, furnace, and anvil all portray the image of the blacksmith, one of the main central themes in this poem ( Blake 769). William Blake personifies the blacksmith to God, the creator, and Blake himself. The Tyger is about having your reason overwhelmed at once by the beauty and horror of the natural world (Friedlander 1). When the stars threw down their spears / And waterd heaven with their tears (Blake 770). For Blake, the stars represent cold reason and objective science (Friedlander 1). In retrospect, the creation of the tiger represents transcendent mystery and direct reference to the lamb Did he who made the Lamb make thee (Blake 770). The Lamb and the Tyger are polar opposites of each other, one representing the fear of God and the other representing faith or praise of God through nature. As a child one is more like the lamb, innocent and more pure, and as they mature they earn their stripes and become aged and mature by societal tendencies of life like the tiger. The irony in the Songs of Innocence in contrast with the Songs of Experience is that they are opposites but seem to bounce off one another. They both have the same creator, both God and Blake, and suggest morals of good and evil. They are each on the extreme ends of the spirituality spectrum and in the middle is humanity, but you cant have one without the other. In order to have good you have to balance it out with evil, in a sense where good isnt just good, it is the other side of evil, and where evil is the other side of good.
Wednesday, November 13, 2019
Depression :: Health, Nursing, Long Term Care
Evidence suggests that depression is associated with high levels of morbidity and mortality and adversely affects the quality of life and social functioning (Katona, 1994). Some of these patients do not move about much, and with depression added to this premise, the transition from what these patients were used to, to a completely new environment is usually traumatic. Nursing care providers can ease the trauma felt by these new arrivals by conducting assessments to determine whether these individuals are suffering from depression, so as to remedy this malady as soon as possible. Depression affects approximately 5% of the population at any one time, with depressive symptoms being more common in people over 65, with prevalence estimates ranging from 10 to 15% (Baldwin, 1995). Depression in nursing homes has been recognized as especially problematic states Ames, (1994). Depression is not a normal consequence of aging, and it is known to be under-recognized and under-treated, especially in hospitals, outpatient settings, and nursing homes. (Patry, 2004). Problem Background Older people entering long-term care facilities face major adjustment challenges and are particularly vulnerable to mental health problems (Murphy, 1982; Mikhail, 1992; Manion & Rantz, 1995). Newly admitted residents in long-term care facilities are particularly vulnerable to depression and the early recognition and treatment of depression is therefore crucial around the time of admission to a home. (Bagley et al., 2000). By day 14 of their nursing home stay, thirty-eight percents of the admitted residents sampled in a study conducted by Boyle et al. (2004) were positive for depressive symptoms. Depression then is still a highly significant problem among those admitted to a nursing home. (Boyle, 2004). In contrast, the authorsââ¬â¢ stated that depression recognition in the nursing homes has improved. Michigan's Quality Improvement Organization (MPRO) conducted a study of 14 nursing facilities to improve the accuracy of assessments, targeting, and monitoring of care. 69% of participants were female 46% were 76-85 and 37% were 86 or older. Among men, 24% were age 75 or younger 51% were 76-85 and 25% were 86 or older. It was found that out of 818 residents, 313 (38%) had depressive symptoms by day 14. Out of the 313, 213 (68%) were admitted with a diagnosis of depression. (Boyle, et al., 2004). The nursing homes in this study use the Geriatric Depression Scale (GDS) to assess symptoms of depression; however, its use is highly selective. (Boyle, et al., 2004). The authors stated that additional research in developing strategies to ensure continuity of care to people across treatment settings would be useful.
Monday, November 11, 2019
Da Vinciââ¬â¢s Mona Lisa and Warholââ¬â¢s Marilyn Monroe Paintings Essay
Leonardo DaVinciââ¬â¢s Mona Lisa is one of the most well-known paintings in the world. Show anyone from a 60 year old man to a 10 year old girl a picture of the painting and, most likely, they will be able to name the painting as well as the painter. While some say that DaVinciââ¬â¢s painting is the most famous of all created, many of Andy Warholââ¬â¢s paintings are also easily recognizable. Almost everyone has seen the Campbellââ¬â¢s Soup Can series Warhol painted or his famous Triple Elvis print. This paper will be focusing on his Marilyn Monroe series, which I will be comparing and contrasting to the Mona Lisa. There are many obvious differences between the two paintings, such as the time period, color scheme, background and subject matter. My goal is to also point out some similarities such as their use of line, recreations, fame, and prominence in society. One of the major contrasts between the two works is the history behind the paintings. Andy Warhol was said to be fascinated with the actress Marilyn Monroeââ¬â¢s supposed suicide in August of 1962. Warhol proved the Proverb, ââ¬Å"Good men must die, but death cannot kill their namesâ⬠to be true, making his Marilyn Monroe series one of his most famous works. Warhol bought a publicity still of Marilynââ¬â¢s 1953 movie Niagara, cropped it, enlarged the face, and reproduced it on eight different canvases. Each painting was given a different color scheme. These paintings were the first solo exhibition for Warhol. The most famous of the series, Lemon Marilyn, was bought and kept in a private collection until 2007. While the subject of Warholââ¬â¢s painting is very well known and easily recognized, the subject of Leonardo DaVinciââ¬â¢s Mona Lisa was most likely commoner, and there are many different theories of who the woman could be. Some say the woman is DaVinci himself, in woman form. Others say it could be Lisa Gherardini; the wife of a wealthy businessman in Florence, Italy named Francesco Del Giocondo. DaVinci was commissioned to paint the Mona Lisa in 1503, and worked on it for four years before it was finished. DaVinci kept his painting for quite a while before he sold it to the King of France, King Francois, in 1516. (ââ¬Å"Mona Lisa.â⬠Lairweb.com. N.p., n.d. Web.) After the French Revolution, the painting was moved to the Louvre, where it remains today. The history behind the paintings also point out several more differences. There is only one Mona Lisa, while Warhol created many Marilyn paintings. The time period when the two painters lived was decades apart. DaVinci was alive from 1452-1519, while Warhol was born in 1928 and died in 1987. While Warhol was strictly an artist, DaVinci spent time as a mathematician, engineer, writer, and geologist as well. The two menââ¬â¢s styles of painting were very different as well. DaVinci painted in the style of chiaroscuro, the use of strong contrasts between light and dark, and sfumato. Sfumato is created by painting a color that turns slowly from light to dark tones to give off a kind of misty glow or smoky mystery. Andy Warhol was a major part of the Pop art movement. Jennifer Rosenberg of About.com quoted pop art as being, ââ¬Å"a new style of art that began in England in the mid-1950s and consisted of realistic renditions of popular, and everyday items.â⬠(Rosenberg, Jennifer. ââ¬Å"Andy Warhol.â⬠About.com 20th Century History. About.com, n.d. Web. 16 Dec. 2012.) Warhol used silk-screening to create Marilyn Monroe. Warhol is quoted as saying, ââ¬Å"In August 62 I started doing silkscreens. I wanted something stronger that gave more of an assembly line effectâ⬠¦you pick a photograph, blow it up, transfer it in glue onto silk, and then roll ink across it so the ink goes through the silk but not through the glueâ⬠¦ I was thrilled with it. When Marilyn Monroe happened to die that month, I got the idea to make screens of her beautiful face the first Marilyns.â⬠(ââ¬Å"Andy Warholââ¬â¢s Marilyn Prints.â⬠Andy Warholââ¬â¢s Marilyn Prints. Color Vision and Art, n.d. Web. 16 Dec. 2012.) DaVinciââ¬â¢s painting was progressive for the time. The traditional paintings of his time were of a head and shoulders portrait, in a very rigid or posed position. The Mona Lisa is painted all the way down to her hands, and she seems to be in a very comfortable, relaxed pose. Her pose is very linear, which conveys a sense of ââ¬Å"formal and dignified ideasâ⬠. (ROEMER, CK. ââ¬Å"Looking at Great Art Practice.â⬠Http://www.studiocodex.com. N.p., 2007. Web.) This would be appropriate if this woman is the wife of a wealthy man, which is one of the speculations of the womanââ¬â¢s identity. Andy Warholââ¬â¢s painting, on the other hand, seems almost regressive. Only Marilynââ¬â¢s face is shown. She is depicted with a very serious expression, and is very unnaturally posed. This seems to project a sense of excitement or disorder, which represent Marilynââ¬â¢s life very accurately. The two subjects of the painting are very different in appearance as well. The Mona Lisa has no makeup on. She is dressed very plainly and does not seem to be wearing any jewelry. Marilyn Monroe has a lot of make-up on and has her hair curled and styled. Marilyn seems to have a haughty or annoyed expression on her face, while Mona Lisa is smiling slightly and seems to be happy and content. Another major difference between the two paintings is the use of color. The Mona Lisa is depicted in very earthy tones. The tan color of the flesh seems closer to the viewer, while the muted browns, greens, tans, and blues seem to fade into the background. DaVinci used light and dark colors to highlight certain parts of the painting, such as the womanââ¬â¢s face and hands. The color palette is what would be expected if this was an actual photograph. Andy Warholââ¬â¢s Marilyn is the complete opposite of the Mona Lisa. None of the colors are natural, except, maybe, the makeup, and can appear shocking to the eye at first glance. All aspects of the painting are bright; eyes, lips, eye shadow, and hair. Warhol painted Marilyn in ten different color combinations with 250 of each color variation. (Henry. ââ¬Å"Henry On Pop Art.â⬠ââ¬ËHenry On Pop Artââ¬â¢ N.p., 08 Aug. 2011. Web. 16 Dec. 2012.) While the actual colors used in the paintings are very different, the way the painters used the colors brings out a similarity in the two. Mona Lisa is dressed very dark and her pale face is framed by dark hair. The light colors used in the background seem to bring the woman to the front of the painting. This was most definitely done on purpose by DaVinci. He wanted the viewer to focus on Mona Lisa. The same can be said of Warhol. He uses a bright contrasting color for his background of Marilyn Monroe. Although the background color almost always matches that of Marilynââ¬â¢s eye shadow, the background contrasts with the rest of the painting, bringing the face towards the viewer. The use of line in both paintings is also similar. No brush strokes are visible in either painting, and appear a bit foggy. The Mona Lisa is this way due to the technique, sfumato, discussed earlier. In Marilyn, it is hard to pick out a defined line in her hair, for example. The lines in DaVinciââ¬â¢s paintings are the same, flowing from one to the other. The Mona Lisa is blended so well that each section seems like a part of the next. The background of the Mona Lisa is a landscape with a river, bridge, trees, grass, and mountains. The view seems to go on forever, and there is no real focal point in the background. The backgrounds purpose in this painting in unknown, some say it is to contrast the peaceful look of the woman with a foreboding background. Others think it could have been as simple as DaVinci practicing with landscapes. Unlike Mona Lisa, the backgrounds of the Marilyn Monroe paintings are a solid color. The background contrasts dramatically with the colors in the actual face. The background pulls the viewerââ¬â¢s eye to Marilynââ¬â¢s face, instead of something that could be happening in the background. Symmetry is another example of a way the two paintings are alike. The shape of the Mona Lisa is very symmetrical. The woman is sitting straight and a straight line down the middle of the painting would show equal parts. The womanââ¬â¢s body is a triangular shape, with the tops of her legs and hand forming the base, and her head becoming the point. Her face is very circular, and the smile she displays is an arch of a circle. (Roemer, CK. ââ¬Å"Looking at Great Art Practice.â⬠Http://www.studiocodex.com. N.p., 2007. Web.) Warhol gives his Marilyn Monroe paintings a subtle heart shape with the curves created by her hairline. The painter, like DaVinci, uses simple shapes as well, such as the half-moon of her eye shadow, or the slight triangles of her eyebrows, which also shows symmetry. DaVinci creates a feeling of depth and space in his painting. The fact that the woman is taller than the mountains in the background suggests that she is seated very close to the viewer, while the mountains are in the distance. The detail of the pleats in her skirt, the individual pieces of hair, and transparent veil that covers her head are small details that make the woman seem closer to the viewer. The walking paths and streams of water leading up the painting make the eye move upwards, and form a sense of continuous forest. The viewers understand that the landscape goes on for quite a while. (Roemer, CK. ââ¬Å"Looking at Great Art Practice.â⬠Http://www.studiocodex.com. N.p., 2007. Web.) In contrast to DaVinci, Warhol used space by placing Marilynââ¬â¢s face in the middle of the painting. There is no real use of depth in this painting, because of the plain, contrasting color background. She almost appears to be completely flat against the surface. The eye is immediately drawn to the face in Marilyn Monroe. As mentioned above, the contrasting background color pulls the face forward, making the viewer notice her first. The same can be said of Mona Lisa, making focal point a similarity of the two. The woman in Mona Lisa is the biggest part of the painting. Her pale face offset by her dark hair and clothes draws the viewerââ¬â¢s eye to her. The position of her hands is right below her face, which also serves as a line to the focal point. The use of texture is somewhat absent from Warholââ¬â¢s painting, while the Mona Lisa is full of texture, another difference in the paintings. The folds in the womanââ¬â¢s dress make the painting seem more realistic, while the uneven and sharp edges of the mountains in the background contrast nicely with the smoothness of the womanââ¬â¢s face and hair. The womanââ¬â¢s skin also has a dotted affect which makes it seem more lifelike, instead of Warholââ¬â¢s Marilyn that seems fake and unrealistic. The use of value plays a huge role in both paintings. DaVinci uses abrupt changes in value; The pale skin of the woman face and hands against her dark hair and dress. He uses the same type of changes to show the wrinkles on the fabric of her clothing. (ROEMER, CK. ââ¬Å"Looking at Great Art Practice.â⬠Http://www.studiocodex.com. N.p., 2007. Web.) Andy Warhol uses value changes in the brightness of Marilynââ¬â¢s hair against the darker background. The black tones used underneath her hair are darker than the color of her somewhat pale skin. Another similarity is the massive amounts of recreations or paintings based on the same subject. Many artists has done their own version of the Mona Lisa, making her their nationality, fat, and even making her another person altogether. Many artists have also taken Marilyn Monroe and painted her their own way. Both paintings still play a huge role in society today. You can buy phone cases, laptop skins, and even clothing with a picture of these paintings. Replicas of both paintings can be seen hanging on walls of homes, restaurants, and art galleries. Mona Lisa and Marilyn Monroe are both easily recognized and correctly identified in todayââ¬â¢s society. A final similarity between the two paintings is the significance they both played in their style of art. Leonardo DaVinciââ¬â¢s Mona Lisa is said to have ââ¬Å"become the prototype for Renaissance paintings.â⬠(Lorenzzi, Rosella. ââ¬Å"Mona Lisa.â⬠Mona Lisa. N.p., 16 Jan. 2008. Web. 16 Dec. 2012.) Andy Warhol was affectionately known as the ââ¬Å"Pope of Popâ⬠, and his Marilyn Monroe series came to be one of the most well-known and popular works of pop art in his time. The final difference between the two, and most interesting, is that Warhol recreated DaVinciââ¬â¢s Mona Lisa in his own style; putting 30 Mona Lisas in one silk screen. Warhol is quoted as saying ââ¬Å"30 is better than 1.â⬠(Rose, Millie. ââ¬Å"Postmodernism.â⬠: Andy Warhol. N.p., 08 Nov. 2010. Web. 16 Dec. 2012.) The Mona Lisa is said to have been a major inspiration to Warhol, and he was honored to be able to have his own spin on this iconic painting. Obviously Warholââ¬â¢s w ork did not influence DaVinci because of the time frame. While the differences far outweigh the similarities, both paintings are brilliant. Warhol was a major influence in the pop art world, and his paintings are still being used in many forms of advertising today. DaVinci is said to have been the ultimate example of what a portrait should be, and without a doubt, he has influenced many of the other famous painters today. Both men, while their styles couldnââ¬â¢t have been anymore different, have two of the most famous names in the art world. * Esaack, Shelly. ââ¬Å"Lemon Marilyn,Ãâ 1962.â⬠About.com Art History. N.p., n.d. Web. 16 Dec. 2012. * ââ¬Å"Mona Lisa.â⬠Lairweb.com. N.p., n.d. Web. * Rosenberg, Jennifer. ââ¬Å"Andy Warhol.â⬠About.com 20th Century History. About.com, n.d. Web. 16 Dec. 2012. * Henry. ââ¬Å"Henry On Pop Art.â⬠ââ¬ËHenry On Pop Artââ¬â¢ N.p., 08 Aug. 2011. Web. 16 Dec. 2012. * ROEMER, CK. ââ¬Å"Looking at Great Art Practice.â⬠Http://www.studiocodex.com. N.p., 2007. Web. * Lorenzzi, Rosella. ââ¬Å"Mona Lisa.â⬠Mona Lisa. N.p., 16 Jan. 2008. Web. 16 Dec. 2012. * Rose, Millie. ââ¬Å"Postmodernism.â⬠: Andy Warhol. N.p., 08 Nov. 2010. Web. 16 Dec. 2012.
Friday, November 8, 2019
The Dark Side of Application.ProcessMessages
The Dark Side of Application.ProcessMessages Article submitted by Marcus Junglas When programming an event handler in Delphi (like the OnClick event of a TButton), there comes the time when your application needs to be busy for a while, e.g. the code needs to write a big file or compress some data. If you do that youll notice that your application seems to be locked. Your form cannot be moved anymore and the buttons are showing no sign of life. It seems to be crashed. The reason is that a Delpi application is single threaded. The code you are writing represents just a bunch of procedures which are called by Delphis main thread whenever an event occured. The rest of the time the main thread is handling system messages and other things like form and component handling functions. So, if you dont finish your event handling by doing some lengthy work, you will prevent the application to handle those messages. A common solution for such type of problems is to call Application.ProcessMessages. Application is a global object of the TApplication class. The Application.Processmessages handles all waiting messages like window movements, button clicks and so on. It is commonly used as a simple solution to keep your application working. Unfortunately the mechanism behind ProcessMessages has its own characteristics, which might cause big confusion! What does ProcessMessages? PprocessMessages handles all waiting system messages in the applications message queue. Windows uses messages to talk to all running applications. User interaction is brought to the form via messages and ProcessMessages handles them. If the mouse is going down on a TButton, for example, ProgressMessages does all what should happen on this event like the repaint of the button to a pressed state and, of course, a call to the OnClick() handling procedure if you assigned one. Thats the problem: any call to ProcessMessages might contain a recursive call to any event handler again. Heres an example: Use the following code for a buttons OnClick even handler (work). The for-statement simulates a long processing job with some calls to ProcessMessages every now and then. This is simplified for better readability: {in MyForm:} à à WorkLevel : integer; {OnCreate:} à à WorkLevel : 0; procedure TForm1.WorkBtnClick(Sender: TObject) ; var à à cycle : integer; begin à à inc(WorkLevel) ; à à for cycle : 1 to 5 do à à begin à à à à Memo1.Lines.Add(- Work IntToStr(WorkLevel) , Cycle IntToStr(cycle) ; à à à à Application.ProcessMessages; à à à à sleep(1000) ; // or some other work à à end; à à Memo1.Lines.Add(Work IntToStr(WorkLevel) ended.) ; à à dec(WorkLevel) ; end; WITHOUT ProcessMessages the following lines are written to the memo, if the Button was pressed TWICE in a short time: - Work 1, Cycle 1 - Work 1, Cycle 2 - Work 1, Cycle 3 - Work 1, Cycle 4 - Work 1, Cycle 5 Work 1 ended. - Work 1, Cycle 1 - Work 1, Cycle 2 - Work 1, Cycle 3 - Work 1, Cycle 4 - Work 1, Cycle 5 Work 1 ended. While the procedure is busy, the the form does not show any reaction, but the second click was put into the message queue by Windows. Right after the OnClick has finished it will be called again. INCLUDING ProcessMessages, the output might be very different: - Work 1, Cycle 1 - Work 1, Cycle 2 - Work 1, Cycle 3 - Work 2, Cycle 1 - Work 2, Cycle 2 - Work 2, Cycle 3 - Work 2, Cycle 4 - Work 2, Cycle 5 Work 2 ended. - Work 1, Cycle 4 - Work 1, Cycle 5 Work 1 ended. This time the form seems to be working again and accepts any user interaction. So the button is pressed half way during your first worker function AGAIN, which will be handled instantly. All incoming events are handled like any other function call. In theory, during every call to ProgressMessages ANY amount of clicks and user messages might happen in place. So be careful with your code! Different example (in simple pseudo-code!): procedure OnClickFileWrite() ; var myfile : TFileStream; begin à à myfile : TFileStream.create(myOutput.txt) ; à à try à à à à while BytesReady 0 do à à à à begin à à à à à à myfile.Write(DataBlock) ; à à à à à à dec(BytesReady,sizeof(DataBlock)) ; à à à à à à DataBlock[2] : #13; {test line 1} à à à à à à Application.ProcessMessages; à à à à à à DataBlock[2] : #13; {test line 2} à à à à end; à à finally à à à à myfile.free; à à end; end; This function writes a large amount of data and tries to unlock the application by using ProcessMessages each time a block of data is written. If the user clicks on the button again, the same code will be executed while the file is still being written to. So the file cannot be opened a 2nd time and the procedure fails. Maybe your application will do some error recovery like freeing the buffers. As a possible result Datablock will be freed and the first code will suddenly raise an Access Violation when it accesses it. In this case: test line 1 will work, test line 2 will crash. The better way: To make it easy you could set the whole Form enabled : false, which blocks all user input, but does NOT show this to the user (all Buttons are not grayed). A better way would be to set all buttons to disabled, but this might be complex if you want to keep one Cancel button for example. Also you need to go through all the components to disable them and when they are enabled again, you need to check if there should be some remaining in the disabled state. You could disable a container child controls when the Enabled property changes. As the class name TNotifyEvent suggests, it should only be used for short term reactions to the event. For time consuming code the best way is IMHO to put all the slow code into an own Thread. Regarding the problems with PrecessMessages and/or the enabling and disabling of components, the usage of a second thread seems to be not too complicated at all. Remember that even simple and fast lines of code might hang for seconds, e.g. opening a file on a disc drive might have to wait until the drive spin up has finished. It doesnt look very good if your application seem to crash because the drive is too slow. Thats it. The next time you add Application.ProcessMessages, think twice ;)
Wednesday, November 6, 2019
Free Essays on Science
Global Warming Most of the world today regards the ââ¬Å"global warmingâ⬠as both real and dangerous. Many aspects, however, have already been discounted by the scientific community. Fears of massive sea level increase, accompanied by many early discussion about global warming. Scientist afraid the sea level would increase onto land due to the melting of ice. It is now widely agreed that even the potential contribution of warming to sea level rise would be swamped by other more important factors (Moran, 1999). These factors include hazardous gases and pollutants. We are entering a period of global warming as a result of burning vast amounts of fossil fuels. By burning fossil fuels, ââ¬Å"we are putting into the air more gases that act like a globe of glass around the planetâ⬠(National Geographic, 1990). The ââ¬Ëglobe of glassââ¬â¢ is a mixture of all the fuels that remains permanently on the surface of Planet Earth. It is called glass because it prevents cooling air from entering causing the Green House Effect. Many scientists believe that human processes are contributing to global warming regardless of impact of natural cycles also causing climate change (Keller, 1999). The earthââ¬â¢s climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases ââ¬â primarily carbon dioxide, methane, and nitrous oxide. The heat-trapping property of these gases is undisputed. Although uncertainty exists about exactly how earthââ¬â¢s climate responds to these gases, global temperatures are rising. Scientists on Hawaiiââ¬â¢s Mauna Loa have recorded steady increase in human activities such as burning fossil fuels. Most believe that the rising CO2 level will lead to higher global temperatures and significant climate change (National Geographic, 1990). Some scientists do not be... Free Essays on Science Free Essays on Science Global Warming Most of the world today regards the ââ¬Å"global warmingâ⬠as both real and dangerous. Many aspects, however, have already been discounted by the scientific community. Fears of massive sea level increase, accompanied by many early discussion about global warming. Scientist afraid the sea level would increase onto land due to the melting of ice. It is now widely agreed that even the potential contribution of warming to sea level rise would be swamped by other more important factors (Moran, 1999). These factors include hazardous gases and pollutants. We are entering a period of global warming as a result of burning vast amounts of fossil fuels. By burning fossil fuels, ââ¬Å"we are putting into the air more gases that act like a globe of glass around the planetâ⬠(National Geographic, 1990). The ââ¬Ëglobe of glassââ¬â¢ is a mixture of all the fuels that remains permanently on the surface of Planet Earth. It is called glass because it prevents cooling air from entering causing the Green House Effect. Many scientists believe that human processes are contributing to global warming regardless of impact of natural cycles also causing climate change (Keller, 1999). The earthââ¬â¢s climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases ââ¬â primarily carbon dioxide, methane, and nitrous oxide. The heat-trapping property of these gases is undisputed. Although uncertainty exists about exactly how earthââ¬â¢s climate responds to these gases, global temperatures are rising. Scientists on Hawaiiââ¬â¢s Mauna Loa have recorded steady increase in human activities such as burning fossil fuels. Most believe that the rising CO2 level will lead to higher global temperatures and significant climate change (National Geographic, 1990). Some scientists do not be...
Monday, November 4, 2019
Forensic Science Case Study Example | Topics and Well Written Essays - 6000 words
Forensic Science - Case Study Example Since his execution, his parents and relatives have been striving to show the world the misuse of justice evident in the case because they still trust that their son was not guilty of the crime. Various articles and books have been published with respect to the case of James Hanratty, with some supporting the fact that Hanratty was not guilty following their investigation and the medical reports that were using the DNA of the victim and those of the deceased. For one to better understand the investigations and the trial that was conducted on Mr. Hanratty, it is essential to consider the criminal record of the individual prior to the case that led to his death. It can be retrieved from the criminal accounts of Hanratty that by the period when he was found guilty of murdering Michael Gregsten, he has already been convicted of four crimes that were linked to motoring offences and minor theft such as housebreaking. In atatininig seventeen years of age, Mr. Hanratty appeared before Harrow Magistrate for taking someoneââ¬â¢s motor vehicle without authority, and also driving a vehicle without insurance or a driving license. Such led to Hanratty being introduced to psychiatric treatment at the Portman Clinic where he was treated as an outpatient. At the age of eighteen years, Hanratty appeared before the court at the county of Middlesex Sessions where he was found guilty and sentenced to two years of imprisonment due to breaking in into someoneââ¬â¢s house and stealing some property. After the release of the release, his father opened a window cleaning business to help me keep away from crime. However, at the age of 20 years, five months after release from Wormwood Scrubs, he was sentenced for six months due to a variety of crimes associated with motor vehicles and driving without a license. However, he was released after four months, but later he was convicted of car theft when he was
Saturday, November 2, 2019
TypeWriter Essay Example | Topics and Well Written Essays - 1750 words
TypeWriter - Essay Example Creativity and innovation that leads to technological advancement started a long time ago. The form of communication among people and especially leaders in the 1500s was through writing. The quest to achieve more efficiency in writing led to the invention typewriters in 1860s. A typewriter is a machine that can be mechanical or electromechanical used in creating characters on a piece of paper. The technology on a typewriter involves transfer of ink or carbon impression on a set piece of paper by striking characters on a key-board. Keys are attached to type bars that are in a circular basket under the platen. Striking hard the keys transfers a marking on the molded head of the type bar. The paper used in the process is wrapped around a cylinder that mounted on a carriage. The carriage moves after striking a type bar to allow the specific spacing of words and letters. The keyboard is organized in a manner to make it easier for the operator to type the characters. After the invention, the machine become popular and was used in different areas such as homes, by writers, and offices to create writing on paper for different purposes. The increased use of the typewriters came to a halt in the early 1980s when word processor in a computer became popular due to its efficiency compared to a typewriter. However, the typewriters have not been completely wiped out. Different places of the world such as India and certain parts of Africa are still using the machine. The machine has undergone a series of changes all with the aim of improving it proficiency in serving the intended purpose. Earlier innovations and trials had been made regarding the creation of a printing device, but the first successful typewriter was made by Sholes and Glidden in 1870. It was known as the Remingtons typing machine. The intended purpose of the machine was to ensure legal documents produced were neat, legible, and of a standard format. Creativity in this machine
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