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  • Dutschke
  • Federal authorities, some in hazmat suits, walk outside the staging area as they search at a small retail space where neighboring business owners said Everett Dutschke used to operate a martial arts studio, in connection with the recent ricin attacks, Wednesday, April 24, 2013 in Tupelo, Miss. No charges have been filed against Dutschke and he hasn t been arrested. (dailytribune.com)
  • Dutschke has not been charged in the ricin case, she said. (taipeitimes.com)
  • Detection of Ricin
  • It also said that on the evening of Dec. 31, 2012, someone using his "computer downloaded a publication, Standard Operating Procedure for Ricin, which describes safe handling and storage methods for ricin, and approximately two hours later, Immunochromotography Detection of Ricin in Environmental and Biological Samples, which describes a method for detecting ricin. (yahoo.com)
  • these include the knowledge of the toxicity from ricin poisoning by the likely routes, methods for the detection of ricin in relevant materials and approaches to making an early diagnosis of ricin poisoning, in order to take therapeutic steps to mitigate the toxicity. (mdpi.com)
  • recent ricin
  • WASHINGTON (Reuters) - At an undisclosed location 10 miles from Washington, Senate employees in protective garb go envelope by envelope through millions of letters destined for the Capitol to thwart mail-borne bioterrorism threats like the recent ricin scare. (reuters.com)
  • Georgi Markov
  • In 1978, a tiny pellet of ricin was used to assassinate Georgi Markov, a Bulgarian dissident, in London when it was injected into his skin using the tip of an umbrella. (pressherald.com)
  • Ricin has been used in assassinations, a notorious case being the use of a 1.53 mm pellet holding a few hundred millionths of a gram of ricin to kill the Bulgarian broadcaster, Georgi Markov, who died 4 days after being attacked. (wikipedia.org)
  • 1978
  • The most notable case of ricin poisoning was in 1978, when a Bulgarian dissident was lethally injected with it by an operative of that country's secret service. (yahoo.com)
  • Envelope
  • I can't imagine that ricin in an envelope is going to hurt anybody," Raymond Zilinskas, director of chemical and biological weapons non-proliferation at the Monterey Institute of International Studies in California, told Nature . (foxnews.com)
  • investigators
  • An FBI agent testified during the hearing that he could not say if investigators had found ricin at Curtis' home, and McCoy said the evidence linking the 45-year-old to the crime so far has hinged on his writings posted online. (yahoo.com)
  • TUPELO, Miss. (AP) A second Mississippi man investigated in connection to ricin-laced letters sent to the president and a U.S. senator said Wednesday that investigators ripped through his house during an hours-long search the previous day after charges were dropped against another man in the case. (dailytribune.com)
  • According to police investigators, enough ricin was discovered at Davison's Burnopfield residence to kill over 1000 people, while a prosecutor put the number of potential victims at 9. (wikipedia.org)
  • Curtis
  • As the hearing went on for roughly two hours, Grant said under questioning by Curtis' attorney that he could not say whether any ricin had been found at Curtis' home because the investigation was ongoing. (yahoo.com)
  • An FBI agent testified in court this week that no evidence of ricin was found in searches of Curtis home. (dailytribune.com)
  • substance
  • Ricin is a stable substance under normal conditions, but can be rendered inactivate by extremes of heat, greater than 176 degrees Fahrenheit. (foxnews.com)
  • A powdery substance believed to be ricin was found on letters to the White House and Sen. Roger Wicker, R-Miss. (pressherald.com)
  • found
  • An FBI agent testified that no ricin or precursors were found in the man's home, nor did a preliminary forensic analysis of his computer reveal anything related to ricin. (wikipedia.org)
  • Ricin is very difficult to process from the beans in which it is naturally found. (foxnews.com)
  • The affidavit also said numerous documents found in Dutschke's home had printer markings that were similar to ones on the letters and that he had used the Internet to buy castor beans, from which ricin is derived. (yahoo.com)
  • Ricin is found in castor beans, he said, and is part of the waste produced by making castor oil, so it's "easily available. (pressherald.com)
  • A late disclosure in 2014 regarding Syria's ricin program raised doubts about completeness of the government's declaration of its chemical weapons stockpile, and in early May 2015, OPCW announced that inspectors had found traces of sarin and VX nerve agent at a military research site in Syria that had not been declared previously by the Assad regime. (wikipedia.org)
  • Tupelo
  • On April 23, agents in hazardous materials suits searched the home of a Tupelo, Mississippi man in connection with the ricin investigation. (wikipedia.org)
  • FBI spokeswoman Deborah Madden said Tuesday that the business, Tupelo Taekwondo Plus, was sealed off after evidence that was collected tested positive for "trace levels of ricin. (yahoo.com)
  • stable
  • Because ricin is stable over a wide pH range, degradation in endosomes or lysosomes offers little or no protection against ricin. (wikipedia.org)
  • The heat of cooking is an even better denaturant than any organic solvent, usually, but ricin is said to be unusually heat-stable. (sciencemag.org)
  • Senate
  • A Senate official has said the ricin was not weaponized, meaning it wasn't in a form that could easily enter the body. (yahoo.com)
  • But it was identified in a Senate resolution sponsored by Wicker, praising workers who discovered the ricin. (reuters.com)
  • https
  • https://books.google.com/books?id=D6zPDAAAQBAJ&pg=PA42&lpg=PA42&dq=i+am+kc+ricin+april+15&source=bl&ots=uxf-lzrATh&sig=Dm36epgGsaKtbTUT2iNMZhFjG5E&hl=en&sa=X&ved=0ahUKEwiE4ra1kePOAhWGGh4KHaEADQ0Q6AEIIzAB#v=onepage&q=i%20am%20kc%20ricin%20april%2015&f=true. (wikipedia.org)
  • beans
  • It is a part of the waste "mash" produced when castor oil is made, according to the CDC, and if the beans themselves are chewed and swallowed, the released ricin can cause injury. (foxnews.com)
  • program
  • Several months later, Syria disclosed that it maintained a ricin chemical weapons program, which the Syrian government claims has fallen into the hands of Syrian Opposition forces in the east of the country. (wikipedia.org)
  • thought
  • The active acidification of endosomes is thought to have little effect on the functional properties of ricin. (wikipedia.org)
  • Ricin molecules are thought to follow retrograde transport via early endosomes, the trans-Golgi network, and the Golgi to enter the lumen of the endoplasmic reticulum (ER). (wikipedia.org)
  • order
  • In order to display its ribosome-inactivating function, the ricin disulfide bond must be reductively cleaved. (wikipedia.org)
  • RTB has been shown to bind to the cell surface on the order of 106-108 ricin molecules per cell surface. (wikipedia.org)
  • For ricin to function cytotoxically, RTA must be reductively cleaved from RTB in order to release a steric block of the RTA active site. (wikipedia.org)