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      <title>My artistic shelf by Krishna</title>
      <link>https://padlet.com/gess/Grade9radioactiveisotopes</link>
      <description>Made with charisma</description>
      <language>en-us</language>
      <pubDate>2018-04-20 00:56:12 UTC</pubDate>
      <lastBuildDate>2026-06-01 02:21:28 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>Write a note on the science behind the following ,advantages and disadvantages. Add some websites , videos atleast 5                                               .1.Smoke detectors                2.Markers to track biological processes in plants to better understand their physiology  3.Food irradiation (to preserve canned foods) 4.Archaeological dating of artefacts                     5.Forensic analysis of crime scene or accident remains    6.Medical applications (For example- nuclear medicine in hospitals to determine bone health, radiation therapy for cancer patients, chemotherapy for cancer patients)7.Sterilization of sensitive instruments.</title>
         <author>mrsk10</author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253668593</link>
         <description><![CDATA[<div><br><br><br><br><br><br></div>]]></description>
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         <pubDate>2018-04-20 00:58:51 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253668593</guid>
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         <title>Malte</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253671773</link>
         <description><![CDATA[<div><a href="https://www.cnet.com/news/appliance-science-how-smoke-alarms-alert-you-to-fires/">https://www.cnet.com/news/appliance-science-how-smoke-alarms-alert-you-to-fires/</a><br><br>2 main types of smoke detectors: &nbsp; ionizing and photosensitive&nbsp;<br><br>ionizing: nside they have two parallel metal plates, with a very small amount of a radioactive element source on one plate. This radioactive material gives off very low power alpha radiation, which knocks electrons off the air molecules it bumps into.&nbsp;<br><br>photosensitive: Larger and more sophisticated, requiring bigger batteries or a permanent power connection.</div>]]></description>
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         <pubDate>2018-04-20 01:20:56 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253671773</guid>
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         <title>oskar</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672191</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-04-20 01:23:55 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672191</guid>
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         <title>Augusta - Disadvantages</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672497</link>
         <description><![CDATA[<ul><li>The DNA analysis of a person is believed to be against human ethics, as it reveals private information about an individual.</li><li> The equipment used in forensics is expensive. </li><li>Scientific analysis consumes lot of time because of which the verdict is delayed.</li><li> It requires precise and accurate analysis. Even if a minor error occurs in the analysis, it may result in the wrong figure.</li><li>The evidence cannot be accessible at all times.</li></ul><div>1.<a href="https://careertrend.com/disadvantages-forensic-scientists-25978.html">https://careertrend.com/disadvantages-forensic-scientists-25978.html</a><br>2.<a href="https://www.buzzle.com/articles/advantages-and-disadvantages-of-forensic-science.html">https://www.buzzle.com/articles/advantages-and-disadvantages-of-forensic-science.html</a><br>3. <a href="http://batterytow.over-blog.com/article-advantages-and-disadvantages-of-forensic-science-89155812.html">http://batterytow.over-blog.com/article-advantages-and-disadvantages-of-forensic-science-89155812.html</a><br>4. <a href="https://prezi.com/pmnk1-4nn1pe/forensic-science-benefits-and-disadvantages/">https://prezi.com/pmnk1-4nn1pe/forensic-science-benefits-and-disadvantages/</a><br>5. <a href="https://sciencing.com/pros-cons-forensic-science-8066285.html">https://sciencing.com/pros-cons-forensic-science-8066285.html</a></div>]]></description>
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         <pubDate>2018-04-20 01:26:02 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672497</guid>
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         <title>Alexander</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672511</link>
         <description><![CDATA[<div>advantages of smoke detectors :</div><div>Somke detectores systems are really important and ensure the safety of<br>&nbsp;everyone in the premises, as well as safe guard against the occurrence of potential property loss in the event of a fire.<br><br></div><div>The latest smoke deetctor systems are extremely intelligent, they can:<br><br></div><ul><li>Automatically call the emergency services and key contacts to minimise the time it takes for the fire brigade to attend site</li><li>Tell the fire brigade exactly where the fire is so they can get to it ASAP</li><li>Minimise pesky false alarms caused by old fire alarm detectors</li><li>And, in the unlikely event of a fault, they can also tell you exactly where the problem is!</li><li>Alert people of a potential fire website: <a href="https://www.quora.com/What-is-the-advantages-and-disadvantages-of-fire-alarm">https://www.quora.com/What-is-the-advantages-and-disadvantages-of-fire-alarm</a>&nbsp;</li></ul><div>Film about function:<br><a href="https://www.youtube.com/watch?v=pcn7MDpoZrY">https://www.youtube.com/watch?v=pcn7MDpoZrY</a></div><div><br></div><div><br></div>]]></description>
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         <pubDate>2018-04-20 01:26:09 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672511</guid>
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         <title>Kristel</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672574</link>
         <description><![CDATA[<div><strong>Advantages of food irradiation</strong><br><strong>- Preservation;</strong> in order to eliminate organisms that cause spoilage and decomposition. Preservation also extends the shelf life of foods.<br><strong>- Control of insects; </strong>Destroying insects on fruits. Irradiation also prevents pest-control on the food, because it won't be needed.<br><strong>- Sterilization; </strong>The sterilizing of food is good, because the food can be stored for years without cooling. Patients with impaired immune systems also gain from this. <strong><br>- Prevention of Food borne Illness; </strong>The irradiation of food effectively eliminate organisms that cause illnesses, such as Escherichia coli and Salmonella<br><br>This site talks about how and why food is irradiated:<br><a href="https://www.fda.gov/food/resourcesforyou/consumers/ucm261680.htm">https://www.fda.gov/food/resourcesforyou/consumers/ucm261680.htm</a> <br>This video describes the advantages and limitations of food irradiation: <br><a href="https://www.youtube.com/watch?v=xD6brkWEnLE">https://www.youtube.com/watch?v=xD6brkWEnLE</a></div>]]></description>
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         <pubDate>2018-04-20 01:26:38 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672574</guid>
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         <title>Frederikke</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672598</link>
         <description><![CDATA[<div>- What does it mean to be treated by irradiation?<br>Food irradiation is a process of food and food packaging to ionising radiation. ionising radiation is from gamma rays,x-rays or electron beams, is an energy there can be transmitted without any direct contact to be the source of energy(radiation) capable of freeing electrons from their atomic bonds in the target food.<br>- Is it safe to eat irritated food?<br>the irrigation makes meat and poultry safer by reducing the number of harmfull bacteria and parasites.<br>food irridation does not make the food we eat radioactive and the radiant energy passes through the food, the food itself never contacts the source of radiant energy, irritated food are wholesome and nutritious, nutrient losses caused by irradiation are less or even the same as losses caused cooking or freezing.<br><a href="https://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/production-and-inspection/irradiation-and-food-safety/irradiation-food-safety-faq">https://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/production-and-inspection/irradiation-and-food-safety/irradiation-food-safety-faq</a><br><a href="https://en.wikipedia.org/wiki/Food_irradiation">https://en.wikipedia.org/wiki/Food_irradiation</a><br><br>Video<br><a href="https://www.youtube.com/watch?v=2MJc_WNl7ME">https://www.youtube.com/watch?v=2MJc_WNl7ME</a><br><a href="https://www.youtube.com/watch?v=pe6AKh_tLys">https://www.youtube.com/watch?v=pe6AKh_tLys</a><br><a href="https://www.youtube.com/watch?v=_9vwS3_s1b4">https://www.youtube.com/watch?v=_9vwS3_s1b4</a></div>]]></description>
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         <pubDate>2018-04-20 01:26:49 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672598</guid>
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         <title>Dennis</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672612</link>
         <description><![CDATA[<div>currently there are <strong>three</strong> types of smoke alarms known as ionization, photoelectric and combination ionization/photoelectric.<br><br>Disadvantages of smoke detectors:<br><br></div><ul><li>Photoelectric Detects presence of smoke, not toxicity.</li><li>Must be cleaned on a regular basis.</li><li>Has a potential for high false alarm rate.</li></ul><div><br><br></div>]]></description>
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         <pubDate>2018-04-20 01:26:59 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672612</guid>
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         <title>What is it?</title>
         <author>regitze_schoendorff</author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672622</link>
         <description><![CDATA[<div>Forensic analysis of a crime is the science application to criminal activity. Forensic scientists preserve and analyse scientific evidence during the investigation. Radio active isotopes are involved during the analysis when scientists have to date remains. Carbon dating is a process that has been used for a long time for archaeology dating but will usually require one to rely on studies that have been done on how bodies decay in different climates. Often, these scientists will not know the temperature and moisture conditions where the body was left. However, it is done by looking at how much carbon is present in the body in proportion to the amount of carbon isotope. This can help them determine how old something is, and in this case, how long something has been decaying.<br><br><br>1.<a href="https://oakland.edu/bals/interdisciplinary-careers/forensics-and-crime-scene-analysis/">https://oakland.edu/bals/interdisciplinary-careers/forensics-and-crime-scene-analysis/</a><br>2.<a href="https://science.howstuffworks.com/csi5.htm">https://science.howstuffworks.com/csi5.htm</a><br>3.<a href="https://www.newscientist.com/article/dn3489-radioisotopes-reveal-victims-life-and-death/">https://www.newscientist.com/article/dn3489-radioisotopes-reveal-victims-life-and-death/</a> <br>4.<a href="https://www.coursera.org/learn/forensic-science/lecture/6wy7M/week-3a-5-analysis-of-skeletal-remains-ii">https://www.coursera.org/learn/forensic-science/lecture/6wy7M/week-3a-5-analysis-of-skeletal-remains-ii</a><br><br></div>]]></description>
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         <pubDate>2018-04-20 01:27:05 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672622</guid>
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         <title>Helena</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672631</link>
         <description><![CDATA[<div>Nuclear medicine uses radiation to provide information about the functioning of a person's specific organs, or to treat them. Diagnostic procedures using radioisotopes are now routine.</div><div>Radiotherapy can be used to treat some medical conditions such as cancer, which uses radiation to weaken or destroy particular targeted cells.</div><div>Over 40 million nuclear medical procedures are performed annually, with demand for treatment with radioisotopes increasing. <br><a href="http://www.world-nuclear.org/information-library/non-power-nuclear-applications/radioisotopes-research/radioisotopes-in-medicine.aspx">http://www.world-nuclear.org/information-library/non-power-nuclear-applications/radioisotopes-research/radioisotopes-in-medicine.aspx</a><br><a href="https://www.radiochemistry.org/nuclearmedicine/frames/medical_radioisotopes/index.html">https://www.radiochemistry.org/nuclearmedicine/frames/medical_radioisotopes/index.html</a></div>]]></description>
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         <pubDate>2018-04-20 01:27:10 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672631</guid>
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         <title>onno </title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672633</link>
         <description><![CDATA[<div>The process of sterilization is an extremely important part of medical care and the health industry.</div>]]></description>
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         <pubDate>2018-04-20 01:27:13 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672633</guid>
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         <title>Laura- advantages </title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672634</link>
         <description><![CDATA[<div><br><br><br>There are many advantages of forensic analysis<br><br></div><div>-With the help of some computer tools, it is likely to control cyber crime. This action is done by packet sniffing.&nbsp;<br><br></div><div>-Forensic analysis helps determine the cause of death by examining the post-mortem changes, blunt injuries, the scene of the death and blunt injuries.<br><br></div><div>- Forensic analysis is used to investigate accident cases and to determine its cause by analysing the vehicle condition, tire and other marks, eye witnesses, calculating the vehicle's speed etc.<br><br></div><div>-Clinical forensic medicine is useful in finding out child abusive, defensive wounds on a victim, gunshot wounds, injury patterns and domestic violence, self-inflicted injuries, sexual assault and semen persistence.&nbsp;<br><br></div><div>-Biometrics technology is a combination with forensics, which can help identify the fingerprint of the criminal, or the other object which are present on the scene. &nbsp;<br><br></div><div>-Phonetics which is another part of forensics, which is used to tap the voice signals and identify the speaker<br><br></div><div>-Some other useful forensic analysis advantages include: fire investigation, forgery, fraud (specifically in payment cards), lie detection, footprint marks, voice analysis, digital imaging and photography, etc.&nbsp;<br><br></div><div>file:///C:/Users/laura/AppData/Local/Microsoft/Windows/INetCache/IE/Y16Z5BO6/mgg005.pdf]<br>https://sciencestruck.com/forensic-toxicology<br>https://www.buzzle.com/articles/advantages-and-disadvantages-of-forensic-science.html</div><div>&nbsp;<br><br></div><div><br></div><div>&nbsp;<br><br></div><div><br></div><div>&nbsp;<br><br></div><div><br></div>]]></description>
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         <pubDate>2018-04-20 01:27:13 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672634</guid>
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         <title>Maya</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672646</link>
         <description><![CDATA[<div>Chemotherapy focuses on cells that grow and divide quickly like cancer cells do.<br>It works through the whole body and might also affect some other fast growing cells in the body such as skin or hair, bone marrow cells or the cells of the digestive system.<br>Chemotherapy can destroy the cancer cells so that they cannot be detected in the body again. The best result would be that the cells would never grow back. This is commonly the wished result after a surgery. Chemotherapy also helps prevent the cancer cells from spreading out further in the body which is helpful before a surgery. Sometimes it also only prevents pain or pressure without controlling the tumor or the cancer cells themselves. The symptoms might be relieved and the life of the patient can be extended. <br><br><a href="https://medlineplus.gov/cancerchemotherapy.html">https://medlineplus.gov/cancerchemotherapy.html</a><br><a href="http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/chemotherapy-and-other-drug-therapies/chemotherapy/?region=on">http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/chemotherapy-and-other-drug-therapies/chemotherapy/?region=on</a><br><a href="https://www.webmd.com/cancer/chemotherapy-what-to-expect#1">https://www.webmd.com/cancer/chemotherapy-what-to-expect#1</a></div>]]></description>
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         <pubDate>2018-04-20 01:27:17 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672646</guid>
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         <title>yuko</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672658</link>
         <description><![CDATA[<div>Advantages of nuclear medicine for determining bone health<br>Nuclear medicine or bone scans can determine the status or the health of the bones&nbsp;<br>Advantages include detecting abnormalities in skeletal system (bone infection, fractures from exercise, Paget’s disease, benign bone tumour, tumour, bone pain and arthritis. Offers additional treatment plans, improves methods for early detection, accurate results. </div><div><br></div><div><a href="https://futureofworking.com/6-advantages-and-disadvantages-of-nuclear-medicine/">https://futureofworking.com/6-advantages-and-disadvantages-of-nuclear-medicine/</a></div><div><a href="https://www.sgh.com.sg/Patient-Services/conditionsandtreatment/Pages/BoneScan.aspx">https://www.sgh.com.sg/Patient-Services/conditionsandtreatment/Pages/BoneScan.aspx</a></div><div><br></div><div><br><br><br></div>]]></description>
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         <pubDate>2018-04-20 01:27:21 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672658</guid>
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         <title>Felix</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672810</link>
         <description><![CDATA[<div>Absolute dating means determining an age on a specified chronology in archaeology and geology.<br>&nbsp;It's also called chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty of accuracy. <br><br>Techniques include tree rings, radiocarbon dating of wood or bones, and trapped charge dating methods. <br>Radiocarbon dating: <a href="https://www.youtube.com/watch?v=phZeE7Att_s">https://www.youtube.com/watch?v=phZeE7Att_s</a><br>Tree ring dating: <a href="https://www.youtube.com/watch?v=AlMfqzihNTE">https://www.youtube.com/watch?v=AlMfqzihNTE</a><br>Coins found in excavations may have their production date written on them, or there may be written records describing the coin and when it was used, allowing the site to be associated with a particular calendar year. <br> <figure class="attachment attachment--preview" data-trix-attachment="{&quot;contentType&quot;:&quot;image&quot;,&quot;height&quot;:219,&quot;url&quot;:&quot;http://www.forumancientcoins.com/numiswiki/images/1.jpg&quot;,&quot;width&quot;:600}" data-trix-content-type="image"><img src="http://www.forumancientcoins.com/numiswiki/images/1.jpg" width="600" height="219"><figcaption class="attachment__caption"></figcaption></figure>&nbsp;</div>]]></description>
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         <pubDate>2018-04-20 01:28:25 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672810</guid>
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         <title>emma</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672815</link>
         <description><![CDATA[<div><a href="https://www.smithsonianmag.com/history/showing-their-age-62874/">Showing Their Age | History | Smithsonian</a></div>]]></description>
         <enclosure url="https://www.smithsonianmag.com/history/showing-their-age-62874/" />
         <pubDate>2018-04-20 01:28:26 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672815</guid>
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         <title>Fabian</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672934</link>
         <description><![CDATA[<div>Disadvantages<br><a href="https://www.ncbi.nlm.nih.gov/books/NBK26818/">https://www.ncbi.nlm.nih.gov/books/NBK26818/</a> <br><a href="https://www.ncbi.nlm.nih.gov/books/NBK62439/">https://www.ncbi.nlm.nih.gov/books/NBK62439/</a><br>For DNA markers there are some potential disadvantages like when you have to draw blood to inspect the DNA you would need a profesional which would be minimal cost but to genotype the information would cost a larger amount.</div>]]></description>
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         <pubDate>2018-04-20 01:29:26 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672934</guid>
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         <title>matthijs</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672935</link>
         <description><![CDATA[<div>Advantges<br><br>There are some potential advantages in making scientific progress of understanding and discovering in the nature of genetic and environmental factors on complex social science traits. Some of these advantages are the following.<br><br><br></div>]]></description>
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         <pubDate>2018-04-20 01:29:27 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672935</guid>
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         <title>Luke</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672937</link>
         <description><![CDATA[<div>Types:<br><br></div><ul><li>RFLP (or <a href="https://en.wikipedia.org/wiki/Restriction_fragment_length_polymorphism">Restriction fragment length polymorphism</a>)</li><li>SSLP (or <a href="https://en.wikipedia.org/wiki/Simple_sequence_length_polymorphism">Simple sequence length polymorphism</a>)</li><li>AFLP (or <a href="https://en.wikipedia.org/wiki/Amplified_fragment_length_polymorphism">Amplified fragment length polymorphism</a>)</li><li>RAPD (or <a href="https://en.wikipedia.org/wiki/RAPD">Random amplification of polymorphic DNA</a>)</li><li>VNTR (or <a href="https://en.wikipedia.org/wiki/Variable_number_tandem_repeat">Variable number tandem repeat</a>)</li><li>SSR <a href="https://en.wikipedia.org/wiki/Microsatellite_(genetics)">Microsatellite</a> polymorphism, (or <a href="https://en.wikipedia.org/wiki/Microsatellite_(genetics)">Simple sequence repeat</a>)</li><li>SNP (or <a href="https://en.wikipedia.org/wiki/Single_nucleotide_polymorphism">Single nucleotide polymorphism</a>)</li><li>STR (or <a href="https://en.wikipedia.org/wiki/Short_tandem_repeat">Short tandem repeat</a>)</li><li>SFP (or <a href="https://en.wikipedia.org/w/index.php?title=Single_feature_polymorphism&amp;action=edit&amp;redlink=1">Single feature polymorphism</a>)</li><li>DArT (or <a href="https://en.wikipedia.org/wiki/Diversity_Arrays_Technology">Diversity Arrays Technology</a>)</li><li>RAD markers (or <a href="https://en.wikipedia.org/wiki/Restriction_site_associated_DNA_markers">Restriction site associated DNA markers</a>)</li></ul>]]></description>
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         <pubDate>2018-04-20 01:29:28 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672937</guid>
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         <title>Emil</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672954</link>
         <description><![CDATA[<div><strong>Advantages&nbsp;<br></strong><br></div><ul><li>Molecular markers are abundant while biochemical markers are very few and morphological markers still fewer in number and insufficient for using for breeding purposes.</li><li>Morphological and biochemical markers are subject to variation due to environmental factors while molecular markers are not.</li><li>Biochemical markers may show tissue specificity while molecular markers show no such bias.</li><li>Morphological markers are affected by epistasis while molecular markers are not.</li><li>Molecular markers can exhibit high polymorphism compared to the other types of markers.</li></ul><div><a href="https://www.youtube.com/watch?v=rbRQrP4FmoY">https://www.youtube.com/watch?v=rbRQrP4FmoY</a><br><br><a href="https://www.ncbi.nlm.nih.gov/books/NBK21962/">https://www.ncbi.nlm.nih.gov/books/NBK21962/</a></div><div><br><a href="https://en.wikipedia.org/wiki/Molecular_marker">https://en.wikipedia.org/wiki/Molecular_marker</a><br><br></div>]]></description>
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         <pubDate>2018-04-20 01:29:37 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672954</guid>
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      <item>
         <title>Elsa</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672964</link>
         <description><![CDATA[<div>advantages</div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-20 01:29:43 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672964</guid>
      </item>
      <item>
         <title>Luliana</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672978</link>
         <description><![CDATA[<div><strong>Disadvantages:</strong></div><ul><li>It reduces the content of several key nutrients such as Vitamin E, Thiamin Vitamin C, Riboflavin, Pyridoxine, Vitamin B12. Other nutrients are also affected however the results are less consistent.</li><li>It creates radiolytic products with unknown short term or long term safety effects.</li><li>Some of the organoleptic properties are affected especially for herbs, spices, essential oils.</li><li>Formation of cholesterol oxides and fatty acid epoxidation and other oxidation products (aldehydes, esters, ketones etc.) posing safety concerns.</li><li>Aggregation of certain proteins has been found for high protein commodities.</li><li>Is ineffective against viruses.</li></ul><div><br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-20 01:29:46 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253672978</guid>
      </item>
      <item>
         <title>selin</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253673021</link>
         <description><![CDATA[<div>There are two main categories of dating methods in archeology : indirect or relative dating and absolute dating. Relative dating includes methods that rely on the analysis of comparative data or the context (eg, geological, regional, cultural) in which the object one wishes to date is found.&nbsp;<br><br>On the other hand, absolute dating includes all methods that provide figures about the real estimated age of archaeological objects or occupations. </div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-20 01:30:10 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253673021</guid>
      </item>
      <item>
         <title>Disadvantages</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253673427</link>
         <description><![CDATA[<div>The major disadvantage of using radioisotopes in nuclear medicine is that it has a negative impact on health. Radioisotopes are also expensive as well as difficult to store due to constantly emitting radiation. <br><br><a href="https://healthresearchfunding.org/pros-cons-nuclear-medicine/">https://healthresearchfunding.org/pros-cons-nuclear-medicine/</a><br><a href="http://visionlaunch.com/pros-and-cons-of-nuclear-medicine/">http://visionlaunch.com/pros-and-cons-of-nuclear-medicine/</a></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-20 01:33:36 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/253673427</guid>
      </item>
      <item>
         <title>onno</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254099716</link>
         <description><![CDATA[<div>The process of sterilization is an extremely important part of medical care and the health industry.&nbsp;<br>One of the oldest forms of sterilization is heat sterilization. It is also one of the least used methods when it comes to sterilizing medical equipment.&nbsp;<br>Heat sterilization can be divided into two separate categories:</div><ul><li>dry heat sterilication</li><li>Moist Heat Sterilization</li></ul><div><br>Sterilisation is the process of killing all viable microorganisms, including resistant spores, to a high level of probability, ensuring that the likelihood of a microorganism's survival is no more than one in a million.<br><br><a href="http://www.medicaldevice-developments.com/features/featureleave-nothing-to-chance-sterilising-medical-devices-different-techniques-pros-cons/">http://www.medicaldevice-developments.com/features/featureleave-nothing-to-chance-sterilising-medical-devices-different-techniques-pros-cons/</a><br><br><a href="https://study.com/academy/lesson/hot-air-oven-for-sterilization-definition-working-principle.html">https://study.com/academy/lesson/hot-air-oven-for-sterilization-definition-working-principle.html</a></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-22 04:06:34 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254099716</guid>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220052</link>
         <description><![CDATA[chamber that an LED shines light through. At a right angle to this is a photodiode, an electronic component that detects light. ]]></description>
         <enclosure url="" />
         <pubDate>2018-04-23 02:09:50 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220052</guid>
      </item>
      <item>
         <title>Malte</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220245</link>
         <description><![CDATA[<div>&nbsp;<a href="https://www.cnet.com/news/appliance-science-how-smoke-alarms-alert-you-to-fires/">https://www.cnet.com/news/appliance-science-how-smoke-alarms-alert-you-to-fires/</a><br><br>2 main types of smoke detectors: &nbsp; ionizing and photosensitive&nbsp;<br><br>ionizing: nside they have two parallel metal plates, with a very small amount of a radioactive element source on one plate. This radioactive material gives off very low power alpha radiation, which knocks electrons off the air molecules it bumps into.&nbsp;<br><br>photosensitive: Chamber that an LED shines light through. At a right angle to this is a photodiode, an electronic component that detects light.&nbsp; If there is smoke in the air, though, the photodiode will detect the light that is reflected by the smoke particles. It's like dust particles in a sunbeam: You don't see the sunbeam unless there is dust in the air to deflect some of the light.&nbsp;</div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-23 02:11:05 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220245</guid>
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      <item>
         <title>video</title>
         <author></author>
         <link>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220550</link>
         <description><![CDATA[<div><a href="https://msu.edu/course/fsc/229/Notes/Lecture%2011.htm">https://msu.edu/course/fsc/229/Notes/Lecture%2011.htm</a><br><br>website: <br><a href="https://msu.edu/course/fsc/229/Notes/Lecture%2011.htm">https://msu.edu/course/fsc/229/Notes/Lecture%2011.htm</a><br><a href="https://connectusfund.org/7-advantages-and-disadvantages-of-food-irradiation">https://connectusfund.org/7-advantages-and-disadvantages-of-food-irradiation</a><br><a href="https://www.fda.gov/food/resourcesforyou/consumers/ucm261680.htm">https://www.fda.gov/food/resourcesforyou/consumers/ucm261680.htm</a></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-04-23 02:12:24 UTC</pubDate>
         <guid>https://padlet.com/gess/Grade9radioactiveisotopes/wish/254220550</guid>
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