Tuesday, August 6, 2019

Six Simple Ways to Go Green Essay Example for Free

Six Simple Ways to Go Green Essay These days it seems you can`t even go two hours without seeing or hearing something about being green, whether it`s an advertisement for an Earth-friendly product, news about an environmentally-sound investment, a report about a business or community that`s taking steps to be more eco-conscious, or just general advice on how to save the planet. Going green isn`t just the latest trend though; it`s something we all must do to conserve resources, combat climate change, and preserve our planet for generations to come. Here are six easy-but essential-things you can do to green your lifestyle (and save a little cash too:) 1. Green Clean Your House: Conventional household cleaners and bug-killers can contain as many as 200 industrial compounds, pollutants, and other chemicals. These harmful toxins are dangerous for you, your children and your animal companions, as well as harmful to the environment. Chemicals in cleaning products have even been implicated in Parkinson`s disease, infertility, brain damage, cancer, and other health problems. It`s safer and greener to buy only organic, all-natural cleaning products. Many natural, cruelty-free cleaning products are available in many supermarkets and drugstores. Thrifty cleaners can also make their own green cleaning supplies with everyday, inexpensive ingredients like baking soda, borax, cornstarch, and white distilled vinegar, which is effective for killing bacteria and germs. 2. Garden with a Green Thumb: Americans use approximately 80 million pounds of pesticides in their gardens every year. Like chemical-cleaners, pesticides and synthetic fertilizers pose a threat to you and your loved ones, and the environment in general. Instead, use compost and plant native plants, which have adapted to the environment and require less water and attention, in your garden. By composting you can recycle your yard and kitchen wastes (even your dinner scraps) to fertilize your own garden. This saves you time and money and helps the environment. 3. Don`t Be in the Dark About Green Light Bulbs: Compact fluorescent light bulbs are energy-efficient, long-lasting, and cost-effective. They can be purchased at most hardware stores and cost under $4 each. If you use compact fluorescent light bulbs instead of standard incandescent ones, you`ll not only help save the environment, but you`ll also save around $30 on your electric bill. 4. Curb Consumerism: Do you really need more knick-knacks, techno-toys, fad fashions, and stuff that will ultimately land in a landfill? Cutting back on unnecessary purchases not only helps save landfill space (and all the materials needed to make the must-have merchandise), but it will also save you money for more important things. When you do go shopping bring along reusable canvas shopping bags. Every year Americans use up to 100 billion plastic bags, which equals about 12 million barrels of oil. Some stores offer a small discount if you bring your own bag, and by not using a non-biodegradable, petroleum-based plastic bag, you can help save wildlife. Thousands of animals choke to death on plastic bags, thinking they are food. 5. Eat Green: If you want to be green, it`s important to eat green-vegetarian, that is. Meatless Mondays or Thursdays, or what have you, are a great start. The less meat you eat the more you help to reduce greenhouse gas emissions, curb pollution, and conserve water, land, fossil fuels, and other resources. Consider this: *A United Nations report revealed that the meat, egg, and dairy industries are responsible for more greenhouse gasses than all the cars, SUVs, ships, tractor trailers, trains, and jumbo jets combined. According to the Live Earth concert handbook, refusing meat is the single most effective thing you can do to reduce your carbon footprint. Researchers with the University of Chicago even report that going vegan is 50% more effective in stopping global warming than switching to a hybrid car. *The Environmental Protection Agency (EPA) says that run-off from factory farms pollutes our waterways more than all other industrial sources combined. The EPA also reports that about 80 percent of ammonia emissions in America come from animal waste. *It takes more than 4,000 gallons of water per day to produce food for a meat-eater; only 300 gallons of water a day are needed to produce food for a vegan. Nearly 80 percent of the agricultural land in the U.S. is used to raise animals for food. E: The Environmental Magazine has reported that more than one-third of all fossil fuels produced in the U.S. are used to raise animals for food. 6. Buy Local: If you buy locally-grown fruits and veggies rather than produce that has been trucked across the country, you can help conserve fossil fuels and reduce the amount of carbon dioxide, sulfur dioxide, and other harmful pollutants released into the air. Buying produce from a local farmer`s market also supports local farmers, who often do not use as many harmful chemicals and waxes on the food they grow. You can usually find your local produce cheaper at the Farmer`s Market than in the grocery store.

Monday, August 5, 2019

Kinetics: The Iodination of Propanone

Kinetics: The Iodination of Propanone Mary Adesina This individual investigation will be exploring kinetics through experimentation the reaction: This reaction is described as autocatalytic as it is produces the very species that increases the rate of reaction (hydrogen ions7). Background Reactants Iodine is chemical that takes place in the reaction. Iodine is a halogen (group 7 on the periodic table) with a simple molecular covalent structure. Halogens are often diatomic as they have seven electrons on their outer shell (a full shell being eight) so to share electrons would allow them to be stable. Halogens are very electronegative elements meaning they are very likely to attract a bonding pair of electrons. As one if the less reactive halogens Iodine is a grey solid in standard conditions, this is due to it being a bigger so the outer electrons are further from the nucleus and thus harder for the attraction of an electron to form and Halide ion12. The other halogens consist of Fluorine, Chlorine, Bromine and Astatine. Fluorine’s physical state is a pale yellow gas as it is the most reactive halogen. However it may not react with propanone in the same way as iodine as it does behave as a very good nucleophile. This is due to fluorine being less ready to share electrons with the electrophilic carbon in propanone. Chlorine’s physical state is a green gas and can be made into a virtually colourless solution but in this particular reaction will produce Chloroacetone (used as tear gas in the war) 10. This would put everyone is the laboratory at risk as tear gas can cause tearing, coughing and sneezing but inflaming mucous membranes in the eyes, nose and mouth. Changing the type of ketone in the reaction to butanone will prevent this haloketone from being produced, however the new ketone has a different chain length and therefore there is a need to test if there is a significant difference between the rates of the reaction the iodination of propanone and the iodination of butanone. Bromine’s physical state is a red-brown liquid and is yellow/orange in solution that reacts with propanone in a way that is analogous to iodine4. This halogen is more reactive than iodine as thus should result in a faster reaction rate12. Astatine cannot be used in this reaction as it is far too unreactive as well as radioactive. Propanone (also known as acetone) is the most simple of ketones consisting of three carbons. Ketones are formed by refluxing secondary alcohols with acidified Potassium Dichromate Figure 4. Products Iodopropane is produced in the reaction Spectator Ions Theory In order for a reaction to take place particles need to collide, as occurs energy is shifted between them changing the amount of energy they have this is known as Collision Theory13. The distribution of this energy is displayed in a Maxwell-Boltzmann Curve Figure 2. The factors that have positive correlation with the rate constant3 and therefore effect the rate of a reaction do so because they affect the number of collisions (concentration) or the energy that each particle possesses (temperature) because this effects the number of particles that possess the activation energy (the minimum energy required for the reaction to take place)13. Catalysts also affect the rate of reaction by providing an alternative route for the reaction to occur; this route has a lower activation energy than the original reaction Figure 2 meaning more particles have enough energy to react thus increasing the reaction rate. If a reaction has a great activation energy, the increase in temperature will have a large effect on the rate of reaction whereas if this activation energy was smaller, the change in temperature will be far less significant. This suggests that there is a relationship between reaction rate, temperature and activation energy. Due to this relationship the Arrhenius equation, using the ‘temperature dependence of the rate constant’ 13(k Figure 1), is applied to calculate activation energy of reaction via deriving a form of that fits y=mx+c (taking the natural logarithm). Rate of reaction is defined as the speed at which reactants are formed into products or change in concentration over time taking into consideration the factors that affect it such as surface area, temperature and concentration13. There are many ways of measuring the concentration during a reaction but some are more efficient depending on the property that changes during the reaction. For example, the original reaction being investigated, the iodination of propanone, has an obvious colour change so a technique that detects absorbance (Colorimetry) would be a more efficient than measuring loss of mass when there is no gas released3. With many techniques there arises the need to convert a particular property to concentration, in order to do so a calibration curve is needed. This curve is created by selecting known concentrations and measuring the level or amount of the property associated with the reaction and then drawing a property-concentration curve Figure x. Although it may be referred to as a curve more often than not it turns out to be rather linear as the concentrations used are rather low as the reactions would occur far too quickly if they were any higher, also high concentrations tend to have a higher hazard. It is only through practical experiments that a rate equation giving the order of reactants can be written5. 0 order: Changing the concentration of this species has no effect on the rate of reaction. 1st order: The rate of reaction is directly proportional to the rate of reaction. 2nd order: As the concentration doubles the rate of reaction quadruples (exponential relationship). The overall order of a reaction is calculated by adding the orders of each species Figure 1. The order of a reaction with respect to A shows the number of molecules of A which are involved in the rate determining step. As a result of this a mechanism can be suggested if the rate equation is known as if the reactant is not in the rate equation it cannot feature in the rate determining step. The rate determining step is the slowest step in the reaction and thus it is responsible for the rate of the overall reaction. This step can be first or last (Bottleneck effect) and it would make no difference on the overall reaction rate. Aims Explore the effects of different catalysts on the rate of the reaction and thus the activation energy. After finding the rate equation for the original equation, the same experiment will be carried out with catalysts sulphuric, nitric and hydrochloric acid then with no catalyst (see reactions below). The activation energy can then be calculated via finding the different rates of reaction and thus the different values of the rate constant. This is all assuming the spectator ions have no effect on the reaction. Explore the effects of changing the type of halogen on the rate of the reaction. The chosen halogens are Bromine and Chlorine. The following are the reactions that are going to take place as a result (respectively). Use rate equation to propose a rate determining step and explore a suggested mechanism. If time permits exploring a suggested mechanism may consist of testing the presence of a product of one of the steps in the mechanism. Techniques Colorimetry This technique will be used to calculate the order of the reaction between iodine and propanone. This technique will also be used to measure the rates of the reactions between: Iodine and propanone Iodine and butanone Bromine and propanone Hypothesis: Although the ketones propanone and butanone have different formulas, the difference between the rates of reactions will be negligible and therefore the results for the reaction between chlorine with butanone and chlorine with propanone are more or less similar. Equipment List Chemical List 9 Boiling Tubes 10ml Pipette Spark Data logger Pipette Filler Colorimeter 20ml of 0.02 mol dm-3 Iodine 10ml of 0.02 mol dm-3 Bromine 20ml of 0.02 mol dm-3 Propanone 10ml of 0.02 mol dm-3 Butanone 30ml 0.02 mol dm-3 HCL Distilled water Calibration Curve Set up the colorimeter according to the instructions. Place a cuvette full of distilled water inside the colorimeter and press the zero the button. Select a suitable filter (gives your greatest concentration an absorption of close to one). Make up 0.04, 0.016, 0.004, 0.0016, 0.0004, and 0.00016 mol dm-3 of iodine solution in test tubes by adding distilled water. Label each test tube. Place 6 ml 0.04 mol dm-3 of iodine solution in a cuvette and record the absorbance Do the same for each of the other concentrations. Draw a calibration curve by placing known concentrations of iodine solution in the colorimeter and recording the absorption. Only repeat the concentrations that don’t seem to fit in the curve. Method: To achieve Aim 1 Attach data logger to collect data automatically. Place a cuvette full of distilled water inside the colorimeter and press the zero the button. Select a suitable filter (gives your greatest concentration an absorption of close to one). Mix sample A, sample B and 2 ml of 0.02 mol dm-3 HCL in a cuvette (add sample A last). Immediately place cuvette inside the colorimeter and start recording absorbance at time intervals of 30 seconds for 6 minutes using the data logger. Repeat Steps 2 to 5 two more times and calculate an average. Use calibration curve to convert absorbance to concentration then draw a concentration-time graph. Sample A Sample B Experiment 1 2ml of 0.02 mol dm-3 Iodine 2ml of 0.02 mol dm-3 Propanone Experiment 2 2ml of 0.02 mol dm-3 Iodine 2ml of 0.02 mol dm-3 Butanone Experiment 3 2ml of 0.02 mol dm-3 Bromine 2ml of 0.02 mol dm-3 Propanone Method: To achieve Aim 3 (Determine a rate equation) Attach data logger to collect data automatically. Place a cuvette full of distilled water inside the colorimeter and press the zero the button. Select a suitable filter (gives your greatest concentration an absorption of close to one). Add sample A, sample B and sample C in a cuvette. Immediately after adding Xml of 0.02 mol dm-3 Iodine sol, place the cuvette inside the colorimeter. Start recording absorbance at time intervals of 30 seconds for 6 minutes using the data logger. Repeat Steps 2 to 6 two more times and calculate an average. Sample A Sample B Sample C X Experiment 1 0.9ml of 0.02 mol dm-3 Propanone 0.9ml of 0.02 mol dm-3 HCL 3.3ml distilled water 0.9 Experiment 2 1.8ml of 0.02 mol dm-3 Propanone 0.9ml of 0.02 mol dm-3 HCL 2.4ml distilled water 0.9 Experiment 3 0.9ml of 0.02 mol dm-3 Propanone 1.8ml of 0.02 mol dm-3 HCL 2.4ml distilled water 0.9 Experiment 4 0.9ml of 0.02 mol dm-3 Propanone 0.9ml of 0.02 mol dm-3 HCL 2.4ml distilled water 1.8 Use calibration curve to convert absorbance to concentration then draw a concentration-time graph. Conductivity Meter11 This technique will be used to measure and compare the reaction rates of the iodination of propanone with a different catalysts. Hypothesis: The catalyst with the most hydrogen ions available will have the fastest reaction of rate and thus the lowest activation energy. This is assuming the spectator ions have no effect on the conductivity meter. Equipment List Chemical List 100ml Beaker Conductivity Meter 10ml Pipette Pipette filler 2 Water baths Kettle/Bunsen Burner Test tubes 220cm3 of 0.02 mol dm-3 Propanone 120cm3 of 0.02 mol dm-3 HCL 60cm3 of 0.02 mol dm-3 H2SO4 220cm3 of 0.02 mol dm-3 HNO3 220cm3 of 1 mol dm-3 Iodine Distilled water Method: To achieve Aim 3 (Effect of catalysts on activation energy) Make two water baths (one large one small) at X degrees Celsius using a kettle and tap water. Label 2 test tubes A and B then fill with 9ml of 0.02 mol dm-3 Propanone and 9ml of 0.02 mol dm-3 Iodine respectively. X Experiment 1 10 Experiment 2 20 Experiment 3 30 Experiment 4 40 Experiment 5 50 Experiment 6 60 Label 3 more test tubes X,Y and Z then fill with 3ml of 0.02 mol dm-3 H2SO4 , 3ml of 0.02 mol dm-3 HCL and 3ml of 0.02 mol dm-3 HNO3 respectively. Place all of the test tubes in the small water bath for 2 minutes. Place a beaker in the large water bath. Pour 3 ml from test tubes A and X into the beaker. Place conductivity probe in the beaker and adjust settings to consider the temperature of the water bath. Add 3ml from test tube B into the beaker. Start conductivity probe and record the conductivity every 30 seconds for 6 minutes. Repeat steps 6 to 9 but using the contents of test tube Y. Repeat steps 6 to 9 but using the contents of test tube Z. Repeat steps 1 to 11 two more times and calculate an average. Titration9, 12 14 This technique will be used to measure the decrease in concentration of chlorine water throughout the reaction between chlorine solution and butanone in order to find the initial rate of reaction. As chlorine solution is virtually colourless it would be more effective to conduct an analysis that doesn’t rely on a colour change. A Redox titration will be used to measure the decrease in iodine concentration to ensure that the technique used to collect data doesn’t have a significant effect on the results. Sodium Hydrogen Carbonate will be used to quench the reaction as it removes the hydrogen ions from the reaction. Silver Nitrate Titration: The chloride ions produced by the reaction will react with the silver nitrate to form a white precipitate (silver chloride). The end-point of the titration is a red precipitate caused by silver chloride reacting with the Sodium Chromate to form Silver Chromate(VI). Redox Titration: The iodide ions produced by the reaction will oxidise the Sodium Thiosulphate, so the thiosulphate ions become tetrathionate ions in a redox reaction. The solution will gradually start to go from brown to almost pale yellow. When this happens the starch indicator is added and reacts with triiodide forming a very dark blue-black complex. The end point is when this solution becomes colourless because it means that there is no longer any iodine left. Hypothesis: As Chlorine is more reactive than Iodine, the rate of the reaction should be faster. This is assuming that the technique has no significant effect on the results gained in this experiment. Equipment List Chemical List Distilled Water 2 Conical Flasks Test tubes A White Tile Stopwatch Beaker White paper 50 ml of 1 mol dm-3 Sodium Hydrogen Carbonate Sodium Chromate 50 ml Silver Nitrate 100ml of 0.02 mol dm-3 Chlorine Butanone Calibration Curve for Chlorine Set up apparatus as seen in picture above. Mark white sheet of paper with a large black cross. Make up 10ml of 0.04, 0.016, 0.004, 0.0016, 0.0004, and 0.00016 mol dm-3 Chlorine solution in test tubes by adding distilled water. Label each test tube. For each test tube: Pour the contents of the test tube into a conical flask along with 1g Sodium Chromate dissolved in 20 ml distilled water. Place conical flask on white sheet under burette. Fill a burette with a recorded amount of 0.1 mol dm-3 Silver Nitrate solution. Add drops of Silver Nitrate solution into the solution, swirling after every few drops, there will be a white precipitate formed. Add more drops until the cross is no longer visible due to a brick red precipitate forming. Record the new amount of Silver Nitrate in the burette. Repeat steps 3 to 10 two more times and calculate an average titre (difference of 0.1). Method: To achieve Aim 1 (Reaction rate of Chlorine and Butanone) X Experiment 1 1 Experiment 2 1.5 Experiment 3 2 Experiment 4 2.5 Experiment 5 3 Experiment 6 3.5 Experiment 7 4 Set up apparatus as seen in picture above. Mark white sheet of paper with a large black cross. Mix 3ml of 0.02 mol dm-3 Butanone, 3ml of 0.02 mol dm-3 HCL and 3ml of 0.02 mol dm-3 Chlorine in a conical flask. After X minutes add 3ml of 1 mol dm-3 Sodium Hydrogen Carbonate to quench the reaction. Add 1g Sodium Chromate dissolved in 20 ml distilled water to the conical flask. Place conical flask on a white sheet under burette. Fill a burette with a recorded amount of 0.1 mol dm-3 Silver Nitrate solution. Add drops of Silver Nitrate solution into the solution, swirling after every few drops, there will be a white precipitate formed. Add more drops until the cross is no longer visible due to a brick red precipitate forming. Repeat steps 3 to 9 two more times and calculate an average titre (difference of 0.1). Use calibration curve to obtain a concentration-time graph. Calibration Curve for Iodine Set up apparatus as seen in picture above. Make up 10 ml of 0.04, 0.016, 0.004, 0.0016, 0.0004, and 0.00016 mol dm-3 iodine solution in test tubes by adding distilled water. Label each test tube. For each test tube: Pour the contents of the test tube into a conical flask. Add 3ml of Starch indicator to the conical flask. Fill a burette with Sodium Thiosulphate, recording the amount. Add drops of Sodium Thiosulphate into the solution, swirling after every few drops until there is a permanent colour change from a Black-Blue to colourless. Record the new amount of Sodium Thiosulphate in the pipette. Repeat steps 1 to 7 two more times and calculate an average titre (difference of 0.1). Method: To achieve Aim 1 (Reaction rate of Iodine and Propanone) Set up apparatus as seen in picture above. Mix 3ml of 0.02 mol dm-3 Propanone, 3ml of 0.02 mol dm-3 HCL and 3ml of 0.02 mol dm-3 Iodine in a conical flask. X Experiment 1 1 Experiment 2 1.5 Experiment 3 2 Experiment 4 2.5 Experiment 5 3 Experiment 6 3.5 Experiment 7 4 After X minutes add 3ml of 1 mol dm-3 Sodium Hydrogen Carbonate to quench the reaction. Add 3ml of Starch Indicator to the solution. Fill a burette with Sodium Thiosulphate, recording the amount. Add drops of Sodium Thiosulphate into the solution, swirling after every few drops until there is a permanent colour change from Blue-Black to colourless. Record the new amount of Sodium Thiosulphate in the pipette. Repeat steps 1 to 7 two more times and calculate an average titre (difference of 0.1). Use calibration curve to obtain a concentration-time graph. Risk Assessment Chemical/ Procedure Hazard Risk Action if Occurred Precautions Risk Likelihood (out of 10) Colorimetry Titration (Precipitation) Use of a Conductivity Meter Propanone Butanone Iodine Chlorine Bromine Hydrochloric Acid Sulphuric Acid Nitric Acid Sodium Hydrogen Carbonate Iodopropanone Chlorobutanone Bromopropanone Iodine/Bromide /Chloride ions Sodium Nitrate Sodium Chromate Starch Indicator Sodium Thiosulphate 1 | Page

Sunday, August 4, 2019

hoes and bitches :: essays research papers

Fuck, sittin' up lettin' these motherfuckerz know, though You're my pimp buddies, my boy Sean Dogg, you on a mission (Yeah, baby!) Creep Dogg, I know you trippin' (I feel you) Ya heard me? (um-hm) [murmur] We just sittin' up in here droppin' game about these motherfuckin'...HOS (HOS?!) That's right, hos, and that what the topic is today on the show: hos (Why you always gotta talk about 'em?) I mean, cause if you gotta blame it on somebody You might as well blame it on a motherfuckin ho.... [beat kicks in] You feel me, Meech (Now that I think about it...) It was all on a motherfuckin' ho (Ya heard me?) That the topic today: Hos Live here, Snoop Dogg, and uh..what I'm gonna do right here [inhales] besides smokin' this weed...I'm a holla at 'chy'all... It was all on a ho, in one minute or two it, too cause I know I got it like that...y'knahmsayin? It was all on a ho (Ho, ho, ho) ["Now that I think about it?" echoes] Shiit, niggaz straight feelin' like Bobby Womack is in this motherfucker tonight...y'knahmsayin? That's the way I feel about 'cha...hm hm..it was all on a ho... But uh...it's Nineteen-motherfuckin'-Ninety Eight And I believe today is uh...October 31st, if I ain't...wrong...right, nigga? Yeah, yeah there, so uh... as they say in Halloween world or... White world or just a world, in general: Trick or Treat, bitch (Ha ha!) Ya feel me? (Ya heard me?) We puttin' this Space-Age pimpin' Full ?Fledge? pimpin' right here...y'know? Right now, bitch can't even look at me Bitch you under arrest for "Reckless Eyeballs" We just doin' this real P-Im right about now, ya feel me? (That's it...that's it...) Because...I mean, I got a big grip...a BIG, BIG memory, cuz I remember a whole lot of bitches didn't wanna give no nigga no title "Playa" Bitches wouldn't even look at me, y'knahmsayin? (Yeah you!) They just want a nigga to bust a rap about 'em, y'know (Yeah you!) Buy 'em sometin' to eat from...IHOP, y'know Go get 'em a Big Mac value pack or sumthin'... But uh...I'm a tell you what I really remember the most about these bitches, cuz (What chu remember, dawg?) [Snoop raps] I remember Rachel, Tina, Lisa, and Grace cause every single one of them had a special place in my heart From the start, see I was just a young puppy A young dummy, panties, bitches to fuck with me Now that I grew up and blew up, I look back and thanked [thought] on these hos, they straight to' up, know what? I'm in effect for the nine-eight

Saturday, August 3, 2019

The Consumer and the Checking Account Fairness (CCAF) Act Essay

The Consumer and the Checking Account Fairness (CCAF) Act   Ã‚  Ã‚  Ã‚  Ã‚  Near the end of 2004, the Check Clearing for the 21st Century Act (Check 21) went into effect, bringing with it mixed opinions on what consumers and bankers alike could expect. The now law dealt with the exchange of digitized checks opposed to physical checks, and decreased processing time drastically. The belief among many circles was that checks would begin to bounce en masse, and that the consumer would be impacted in a drastic way. This paper touches on the underlying subject of the â€Å"float† as well as subsequent legislation entitled the Consumer Checking Account Fairness Act (CCAF) that addresses imperfections in Check 21. We will offer information on both acts and show how we as the consumer can expect to be affected. The Float   Ã‚  Ã‚  Ã‚  Ã‚  Ventureline.com defines the term â€Å"float† as being â€Å"the time between the deposit of checks in a bank and when the amount is truly accessible† (2005). This term, although unfamiliar to some, represents a time honored practice that virtually everyone, of any age, has become familiar with. With respect to our personal finances, a float is used to buy the consumer time before funds must be withdrawn from an account. It is advantageous to use from the standpoint of cash flow, as funds might not be available immediately to cover a check, but are expected. This gives the consumer a small amount of leeway in writing checks, as the float may afford the consumer several days before they must cover a check. In a business setting, things are a bit different. There are still advantages that can be realized from a cash flow standpoint, however the float is more of a tool than a resource for the business, and corporate use of the float has revolved more ar ound profit than prevention.   Ã‚  Ã‚  Ã‚  Ã‚  In every business, or household for that matter, there will always be two separate balances for cash. The first refers to the actual recorded amount on the corporate books, while the second is represented by the balance that the bank shows. The difference between these figures, or the float, means that a business can take advantage of short term cash to use for other means. For example, if a company writes $1,000 worth of checks to vendors and receives $1,000 from customers, there would be no difference in what the ... ...ve known it, is on life support. Check 21 may not have been designed for the purpose of eliminating float time, but it most certainly has achieved this as a by-product. It remains a mystery as to how much longer it will be before banks are able to spend the money to fully integrate with what has come to be known as IRD’s, or image replacement documents. So in the meantime, depending upon whom you bank with, or the size of the check you write, may dictate whether or not your documents are electronically sent. One thing that is certain, the advantage has now swung in the direction of the banking center, and only time will tell whether or not there will be relief under CCAF. References Bankston, Karen, Still Got Float, Credit Union Management; Jan2005 Sisk, Michael, It's Time for a Reality Check on Check 21, Bank Technology News; Jan2005 Retrieved Apr 25, 2005 from www.ventureline.com/glossary Schneider, Ivan, Cut the Fee or Wait and See?, Bank Systems & Technology, 2005, CMP media LLC. Retrieved April 26, 2005 from: www.banktech.com Schneider, Ivan, The Flap Over The Float, Bank Systems & Technology, 2005, CMP media LLC. Retrieved April 26, 2005 from: www.banktech.com

The Columbian Exchange: Between the Old World and New World Essay

The Columbian Exchange is a global exchange of goods and ideas between the Old World (Europe, Asia and Africa) and the New World (America). When Columbus first discovered America, Spain wanted to set up colonies. Columbus found some people that he named â€Å"Indians.† They colonies started to trade with each other, and by doing do, they started the Columbian Exchange. Many countries were involved in this trade, including China, Africa and Italy. This exchange of new ideas, traditions, food, religion and diet changed cultures everywhere. The Native Americans gave and received many items. One of the most important items that the Indians received was horses. Before horses, Indians had no way of carrying heavy loads from place to place. When the Europeans arrived in America, they gave them th...

Friday, August 2, 2019

Air Water Polution

Air and Water Pollution Derrick Harris University of Phoenix ENV/100 Sam H. Abbas PhD August 9, 2010 Table of Contents Abstract†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 3 Introduction†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦4 Black Carbon Pollution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 4 Smog Pollution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦5 Water Pollution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 5-6 Conclusion†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 6 References†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 7 Abstract Air and water pollution has become a great problem in society today. Pollution is not only effecting humans but it is effecting plants, trees and animals and the earth’s natural water supply. This document will give various examples of air pollution and water pollution and how it’s affecting the environment as a whole. Air and water Pollution Introduction The earth is constantly working hard to repair itself for man made pollution such as carbon monoxide, nitric oxide, sulfur oxides, volatile organic compounds and particulate matter. All of the above named pollutants are what is known as primary pollutions; the main reason that they are called primary pollutions is because they are directly released into the earth’s atmosphere and it has adverse affects on everything such as the uman anatomy, the reservoirs as well as animals and even the way major cities sky’s look. But the main things that will be discussed and analyzed are black carbon pollution and smog. The other matters that will be addressed is two types of water pollution such as, Oil spills and trash being dumped into oceans. Black Carbon Pollution According to  lbl. gov  (n. d. ),  Ã¢â ‚¬  Black carbon pollution is the release of tiny particles into the air from burning fuel for energy. Air pollution caused by such particulates has been a major problem since the beginning of the industrial revolution and the development of the internal combustion engine . Scientific publications dealing with the analysis of soot and smoke date back as early as 1896. Mankind has become so dependent on the burning of fossil fuels (petroleum products, coal, and natural gas) that the sum total of all combustion-related emissions now constitutes a serious and widespread problem, not only to human health, but also to the entire global environment. †Ã‚  (Why study black carbon pollution,  para. 1). This type of pollution is called primary pollution, because of the fact that the toxins from the fuel are released directly into the air. The adverse affects on humans from back carbon pollution can be asthma, and acute allergies. Black carbon pollution plays a major role in global warming â€Å"Scripps Institution of Oceanography at UC San Diego atmospheric scientist V. Ramanathan and University of Iowa chemical engineer Greg Carmichael, said that soot and other forms of black carbon could have as much as 60 percent of the current global warming effect of carbon dioxide, more than that of any greenhouse gas besides CO2. † (University of California – San Diego,  2008, para. 2). Smog pollution A smog (2010), according to Smog-Definition, A form of air pollution produced by the photochemical reaction of sunlight with hydrocarbons and nitrogen oxides that have been released into the atmosphere, especially by automotive emissions. Most smog in the world come from industrial plants such as power plants and emotions from cars. This type of pollutions is also called primary pollution as well. Smog effects the atmosphere in such a harsh way and causes things such as acid rain. Which destroys plants and some of the world water supplies and this is a very harmful. Smog also contributes to the overcast in some major cities such as New York, Los Angeles and all other major cities. This affects not only American cities but countries outside of the United States of America. Basically smog can be anywhere any major city is. Water Pollution Pollution is the world water way and water supplies is an ongoing problem because of a various reasons but some of the major reason are, oil drilling. Oil is one of the world natural resources and a great majority of it is found in oceans around the world. Now oil is a resources that is needed in society today but, it is also destroying ocean life and causing clean and fresh water to be continually contaminated. Another type of pollution in the water is the dumping of trash into the ocean; as far as the authors opinion trash dumping is one of the worse types of pollution because when different types of fish see the trash in the water the eat it. For example plastic bags are some of the most common things that, get dumped into the ocean and get mistaken for jellfish. Also, fish always get caught in old fish nets and find it hard to get out. These two types of water pollution’s are known as secondary pollution because they are not directly released in to the atmosphere but indirectly from a second source. Conclusion Pollution is and always will be a never ending problem and will continue to effect the world, unless the leaders of today’s society decides that the earth in which humans have to live on and get their resources from is important; pollution will always be a problem. References   lbl. gov. (n. d. ). Black carbon pollution. Retrieved from http://www. lbl. gov/Education/ELSI/pollution-main. html University of California – San Diego, . (2008, March  24). Black carbon pollution emerges as major player IngGlobal warming. Science daily. Retrieved from http://www. sciencedaily. com/releases/2008/03/080323210225. htm Smog. (2010). In Smog-Defenition. Retrieved from http://www. thefreedictionary. com/smog

Thursday, August 1, 2019

In writing Dr Jekyll and Mr Hyde, Stevenson at once creates a statement about the human condition Essay

In writing Dr Jekyll and Mr Hyde, Stevenson at once creates a statement about the human condition, a critique of Victorian society and a gripping mystery. How does he do this? Robert Lewis Balfour Stevenson, born 1850, grew up in a respectable Victorian middle class household in Edinburgh. His nurse was a fundamentalist Christian who taught Stevenson about good and evil. This teaching gave him nightmares, out of one of which was born ‘Dr Jekyll and Mr Hyde’. Victorian Edinburgh had two ‘personalities’: the prosperous middle-class New-Town, where Stevenson lived, and the ‘old black city’ with poverty, disease and over crowding. Men at that time could not play dirty, meet women and get drunk; the darker and more mysterious forces of the personality were suppressed being considered too uncivilised; this was very rude and disrespectful. So men had to do this secretly which meant they were like living two different lives, having two different faces: one which was good and highly respected and the other sneaky and disliked. Experiencing this double standard Stevenson started his plot for his story; to cheat life and become two different people. Stevenson’s novel is about mystery and science. The saying of ‘living two different personalities’ was put to real life in his book; one person having two personalities and becoming a different person. However, Stevenson’s theme seems to be a question just how far scientific development should go before we began to ‘play God’. Some have even suggested that he was drawing attention to the dangers of dabbling with drugs. ‘Dr Jekyll and Mr Hyde’ was set in London where then was a creepy quite place, â€Å"The low growl of London from all around† †¦ â€Å"the street was small and what called quiet† †¦ â€Å"street after street†¦ as empty as a church†. Jekyll lived in a respectable place somewhere in London and Hyde lived in Soho which was exactly the opposite life. In Soho the streets were dark, cramped, old and dirty, â€Å"black guardly surroundings† †¦ â€Å"[The] mournful reinvasion of darkness† †¦ â€Å"ragged children huddled in doorways†. This shows that for a good and respected person such as Dr Jekyll, he would live in a good and clean place, â€Å"The street shown out in contrast to the dingy neighbourhood†. However as for Mr Hyde, a dirty and bad person, he would live in â€Å"some city in a nightmare† dark and unpleasant, â€Å"black winter morning† †¦ â€Å"touch of that terror† . Dr Jekyll has some connection with Mr Hyde in some way. We find out in the novel that Hyde could get into Jekyll’s apartment by a secret back door which no one knew about. The door was a secret to most people and where it led to, â€Å"the door, which was equipped with neither bell nor knocker, was blistered and distained†. The door had no clue for anyone, it was a mystery. The novel has multiple perspective narratives, which means lots of different narrators, which we, as readers, have to piece together. The first section is narrated by Utterson. Because we see events through his eyes we share the mystery and tension he perceives; he thinks its mysterious and tense, se we feel the same. Utterson doubts and disagrees with Jekyll’s will, â€Å"I thought it was madness†¦ and now I begin to fear it is disgrace.† Utterson thinks that how can Jekyll give all his will to Hyde, a person who tramples over children, it’s not right. This adds to the mystery making us feel suspicious and confused. Utterson suspects that Hyde may be blackmailing Jekyll for his will, â€Å"Blackmail House is what I call that place with the door.† and he even has a nightmare about it, â€Å"dark bed on which he tossed to and fro†. This shows that Utterson is worried about Jekyll and is suspicious about Hyde. This also makes us believe it is blackmail. The Next day after Utterson’s nightmare, Utterson meets Hyde and starts to speak with him and Hyde says, â€Å"It is as well we have met.† and gives Utterson the address to his home in Soho. Utterson, surprised that Hyde gave him his address, thinks maybe Hyde is thinking about the will too, â€Å"Good God!’ thought Mr Utterson, ‘can he too have been thinking of the will?† This shows that Utterson suspects more now then from his nightmare that Hyde could be blackmailing Jekyll. In addition to Utterson’s perspective we learn a lot of important information from others. We meet Enfield in the first chapter. He tells Utterson the story of how he saw a man, Hyde, trample over a young girl. When challenged, Hyde agrees to pay the girl compensation. He goes through an odd door and comes out with a cheque signed by some else, â€Å"a man does not, in real life, walk into a cellar door at four in the morning and come out of it with another man’s cheque for close upon a hundred pounds†. Later on in the novel we find out that the mysterious door goes into Jekyll’s property which connects Hyde and Jekyll for us. Utterson is worried that Hyde is blackmailing Jekyll. He discussed Jekyll with Dr Lanyon and discovers that they have argued over a scientific matter and are no longer friends, â€Å"I see little of him now†¦ But it is more than ten years since Henry Jekyll became too fanciful for me. He began to go wrong, wrong in mind; and tough†. In chapter six Lanyon and Jekyll have a bigger fallout, â€Å"I wish to see or hear no more of Dr Jekyll† and after this we are told Lanyon falls into a fatal shock and dies, which we suspect has to do with Jekyll. Hyde has disappeared in chapter five and Utterson goes to see if he’s at Jekyll’s. We are told the Jekyll has changed; he’s pale and scared. There was no sign of Hyde but Jekyll gives Utterson a letter from Hyde which says Hyde will not return. It turns out Jekyll was lying about the letter; no letter was delivered that morning. Jekyll or Hyde must have written that letter, we suspect Jekyll, otherwise why would he have lied. Utterson consults Guest; a hand writing expert. He compares Hyde’s letter to the writing on an invitation written by Jekyll and notes it’s very similar, â€Å"it’s a very interesting autograph†¦ there’s a rather singular resemblance; the two hands are in many points identical; only differently sloped.† This makes us even more suspicious about Dr Jekyll and Mr Hyde; they’re defiantly both linked somehow. The truth is revealed after Jekyll/Hyde has died through the narratives of Lanyon and Jekyll. Jekyll provides autobiographical details and expresses his views on human personality which help the reader unravel the plot. Hyde, Jekyll and Lanyon change throughout the novel. At the start of the novel Hyde tramples over a child accidentally, â€Å"and then came the horrible part of the thing; for the man trampled calmly over the child’s body and left her screaming on the ground.† He crashed into her without noticing but he then paid compensation to the child’s parents. In chapter four Hyde behaviour changes and he becomes wild, â€Å"And then all of a sudden he broke out in a great flame of anger, stamping with his foot, brandishing the cane, and carrying on like a madman†¦ with ape-like fury, he was trampling his victim under foot, and hailing down a storm of blows, under which the bones were audibly shattered.† He changes from bad to worse and now he’s responsible for a death. Jekyll also changes; his feeling and personality. At the beginning of the novel he his calm and relaxed, â€Å"a large, well-made, smooth-faced man of fifty, with something of a slyish cast perhaps, but every mark of capacity and kindness†. Getting into the novel in the middle, Jekyll becomes stressed and nervous, â€Å"looking deadly sick. He didn’t rise to meet his visitor†¦ and bade him welcome in a changed voice†¦ [Utterson] did not like his friend’s feverish manner.† After this matter, Jekyll says that Hyde is gone for good and â€Å"a new life began for Dr Jekyll†, â€Å"He came out of his seclusion, renewed relation with his friends†¦ he face seemed to open and brighten†¦ and for more than two months the doctor was at peace.† Getting close to the end Jekyll turned bad again and changed a lot; he doesn’t want anyway visitors, not even his close friend Utterson, â€Å"he’s shut up again in the cabinetâ € ¦ Mr Utterson, sir, asking to see you†¦ Tell him I cannot see anyone.† This shows that Jekyll has changes a lot from good to bad to good again then back to bad. Dr Lanyon changes throughout the novel too. At the start he’s a warm and welcoming man with no problems, â€Å"This was a hearty, healthy, dapper, red-faced gentleman†¦ and a boisterous and decided manner. At sight of Mr Utterson, he sprang up from his chair and welcomed him with both hands.† Dr Lanyon was a good man at first but moving on through the novel he changes; his health and look, â€Å"but when [Utterson] came in, he was shocked at the change which had taken place in the doctor’s appearance. He had his death-warrant written legibly upon his face. The rosy man had grown pale, his flesh had fallen away; he was visibly balder and older†, and becomes slightly aggressive, â€Å"I wish to see or hear no more of Dr Jekyll’†¦ in a loud, unsteady voice, ‘I am quite done with that person†. To the end of the novel we are told Dr Lanyon becomes so sick and shocked that he dies, â€Å"and in something less than a fortnight he was dead†. Lanyon changed a lot from a kind healthy person to a sick shocked person and at the end dies. Another theme seems to be a critique of the repressive Victorian society, which often led to violence and secrecy. The story is full of locked doors, barred windows and windowless structures. The think, muffling fog also contributes to the theme of secrecy, which is also expressed thought the dialogue. There are a lot of different narrators but each one only knows a certain amount of information and some of which is kept secret. Enfield conceals the name of the person who wrote the cheque Hyde gave to the parents of the trampled girl, â€Å"and signed with a name that I can’t mention†¦ a name at least very well known and often printed.† This makes us clueless and to wonder who the cheque owner can be. Jekyll slams shut the window when he’s talking to Utterson and Enfield, â€Å"But the words were hardly uttered, before the smile struck out of his face and succeeded by an expression of such abject terror and despair†¦ They saw it but for a glimpse had been sufficient, and they turned and left the court without a word†¦ They were both pale; and there was an answering horror in their eyes. ‘God forgive us! God forgive us!† Utterson and Enfield saw something they were not meant to and were shocked. We don’t know what they saw so this adds to the mystery and secrecy, but we may suggest it was Jekyll turning into Hyde. Hyde’s body is found, â€Å"Right in the midst there lay the body of a man sorely contorted and still twitching†¦ and beheld the face of Edward Hyde.† and Utterson and Poole keep it secret, â€Å"in that case can we venture to declare this suicide†¦ I would say nothing of this†. They keep it secret so nobody would examine it and find the truth. Jekyll’s drugs are kept locked away, â€Å"to open the glazed press on the left hand, breaking the lock if it be shut.† Jekyll has locked his drugs secretly so no other human shall meddle with them, damage or use the drugs themselves and create something disastrous. In addition to the secrecy, the multiple-perspective narrative contributes to the mystery. We are told the tale through the eyes of Enfield, Utterson, Lanyon and finally Jekyll. By revealing the plot through letters, diaries and finally, a casebook, the author makes us feel that we are involved in an intimate revelation of true feelings and events. Until ‘Dr Lanyon’s Narrative’ we a re only given glimpses of Hyde through the eyes of the other characters, which draws us into the mystery as well as revealing information about those characters themselves. The moral of this story is to not try to play God.