Chapter 9 Recommended Methods for Determining Soil Cation Exchange Capacity Donald S. Ross and Quirine Ketterings The cation exchange capacity (CEC) of a soil is a measure of the quantity of negatively charged sites on soil surfaces that can retain positively charged ions (cations) such as calcium (Ca2+)‚ magnesium (Mg2+)‚ and potassium (K+)‚ by electrostatic forces. Cations retained electrostatically are easily exchangeable with cations in the soil solution so a soil with a higher CEC has
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Introduction When I first picked up Inside Rikers by Jennifer Wynn‚ I could not help but notice a disturbing image of the book cover; it was an image of an inmate locked up in his cell; he had one hand holding the bar‚ while having the other hand out of the cell‚ with a cigarette in his hand. Then I read the Publisher Weekly’s description of the book in the cover page‚ which read‚ “a penetrating exploration of inmates’ lives in New York’s ‘vast penal colony’… unusually stirring.” Based
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At first‚ to someone who has never played indoor soccer or outdoor soccer‚ the sports may look the same. But look more closely‚ and many differences will be very apparent. Most people are very familiar with outdoor soccer. Outdoor soccer is played in two forty minute halves with eleven players on the field at a time. The eleven players are divided into four different categories; a goalie‚ defenders‚ mid-fielders‚ and offenders. Also on the field are three referees; two of them watch the sidelines
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“Inside the Mind of Google” The world’s most powerful Technology Company was co-founded by two Stanford University graduates in 1998. Both Larry Page and Sergey Brin‚ the Google guys‚ met while studying at Stanford University as PhD candidates. From the beginning Google’s mission statement was‚ “to organize the world’s information and make it universally accessible and useful.” Google currently runs over one million servers and processes one billion search requests of user generated data every
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The scientific basis of climate change According 2013 IPCC Status Report on Climate Change‚ climate change is occurring due to global warming. Observational evidence is coming back from all continents and most oceans‚ And it shows that many natural systems are being affected by regional climate changes particularly temperature increases. There is much scientific data backing the (intergovernmental panel on climate change) with conclusions and facts‚ based on changes in weather patterns
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Symbolization Found in The Pearl “This pearl has become my soul... If I give it up‚ I shall lose my soul” (Steinbeck chapter 5). The book The Pearl was written by John Steinbeck in 1947. The setting of the book takes place in a small town in Mexico somewhere during the late 1800’s. The main characters are Kino‚ a lowly pearl hunter‚ Juana his faithful‚ thoughtful wife and Coyotito‚ the family’s infant child. Both the pearl and the canoe symbolize the corrupting power of something seemingly so
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a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular
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Drug Abuse inside the Mind and Body Brittney Rojo COMM/156 17 February‚ 2013 Professor Nicholas Delzotto Since 1980‚ the number of drug addictions resulting in death has risen 540 percent. (Florida Institute of Technology Counseling and Psychological Services‚ n.d.). Drug abuse is a process that progresses through patterns of repetitive behavior through rewarding feelings that come with substance use. Often unintentional‚ users see drug experience as a recreational crutch. Although
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Be Found Hope is everywhere‚ it could be around the next corner someone takes‚ or it could be a little harder to find‚ buts it’s always there. Hope always leads itself into the right direction‚ so people just have to follow it in its foot steps. Thus Hope is everywhere it is hope is endless‚ hope is there when you need it most‚ and hope needs no reciprocation. Hope never ends‚ when it needs to be found‚ it will be found. In the Lady‚ or the Tiger written by Frank R Stockton Hope was found for
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In order to determine the acidity of certain substances‚ we used moist and dry pH paper (litmus tests)‚ and observed the results. First we used dry pH paper to test the acidity of household ammonia‚ and it turned yellow. According to the legend‚ this indicates a weak acid. This is‚ however‚ not accurate as the vapor of the household ammonia wasn’t able to react as strongly with the pH paper since it was dry. Then‚ we used moist DI water pH paper with the same substance‚ household ammonia‚ and it
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