Retrievable alpha

Approximately 300 kg of dried metal hydroxide solids would be produced per month from decontamination of 120 m3 of PRF salt waste. These solids could be drummed and stored at Hanford as a retrievable alpha waste. Techniques for incorporating the metal hydroxide solids in an immobile borosilicate glass have been developed also. (12)... 

TRU are those containing isotopes, like 241Am and 243Am, that follow uranium in the periodic table and whose half-lives are >20 years. If their level of activity was more than 100 nanocuries of alpha-emitters per gram of waste material (up from 10 nanocuries/g in 1982), the waste could be disposed of by shallow burial. Otherwise, the waste had to be placed in retrievable storage for eventual transfer to a permanent repository. TRUs generally have low levels of radioactivity, generate very little heat, and can be handled by ordinary means without remote control (Eisenbud 1987 Murray 1994). 

Chemical treatment with formaldehyde may not necessarily result in significant denaturation. A recent study of RNase A indicated that treatment with formaldehyde does not significantly alter secondary structure.21,22 Although formalin treatment may induce subtle changes in secondary structure, alpha helices and beta-pleated sheets are left essentially intact after formalin treatment. It is reasonable to assume, however, that boiling (as per antigen retrieval protocols) will significantly alter secondary structure. 

Figure 20.5 Venn diagram of proteins identified containing one or more transmembrane alpha helices in soluble and insoluble extractions from fresh-frozen tissue and from antigen retrieval from FFPE tissue. Reproduced with permission from Reference 14.

Everything in QED is stored in "triples like in the LEAP language. (28) Each triple consists of an index, an attribute, and a value. QED maintains pointer lists to entries that have the same index, attribute, or value so that it can quickly retrieve relations given any combination of I, A, or V. The triples are stored in QED s software implemented virtual memory that is mapped to disk. The internal form of the ALPHA-TO-SC rule is shown in Table IV. 

Another approach to a study of protein (or nucleic acid) structure and sequence is through Entrez. This can be entered via the NCBI home page. Then click on Proteins to obtain a dialogue box where you can type hu man alpha-lactalbumin and then click on Search. You can retrieve about 25 documents for review. Note that you may also enter BLAST through Entrez,... 

In normal operation, the PRF generates about 120 m3 of salt waste solution per month. Currently, this waste solution is made alkaline and routed to underground storage tanks where it mixes with other Hanford defense waste liquors. An alternative waste treatment scheme is desirable to avoid converting large volumes of non-actinide waste to retrievable actinide waste (>10 nCi alpha activity/g) and also to help make the PRF independent of future tank farm management operations. 

Chatonnet, A., Hotelier, T., and Cousin, X. 1999. Kinetic parameters of cholinesterase interactions with organophosphates retrieval and comparison tools available through ESTHER database ESTerases, alpha/beta hydrolase enzymes and relatives. Chem.-Biol. Interact., 119/120, 567-576. 

Also resulting from reprocessing are the lower-activity wastes that are contaminated with transuranic elements (TRU waste). These wastes are defined as containing 100 nanocuries of alpha-emitting transuranic isotopes (with half-lives >20 years) per gram of waste. Over 60,000 m are stored retrievably at DOE sites and are destined for disposal at the Waste Isolation Pilot Plant in New Mexico (Aheame 1997). The estimated cost of remediation and restoration programs in the DOE complex during the next few decades is on the order of 200 billion dollars (Crowley 1997). 

N. Clausell, V. C. de Lima, S. Molossi, P. Liu, E. Turley, A. I. GotUeb, A.G. Adelman, and M. Rabinoviteh, Expression of tumour necrosis factor alpha and accumulation of fibronectin in coronary artery restenotic lesions retrieved by atherectomy, Br. Heart J., 73 (1995) 534-539. 

Clausell, N., de Lima, V.C., Molossi, S., Liu, P., Turley, E., Gotlieb, A.I., Adelman, A.G., and Rabinovitch, M. (1995) Expression of Tumor Necrosis Factor Alpha and Accumulation of Fibronectin in Coronary Artery Restenotic Lesions Retrieved by Atherectomy, Br. Heart. J. 73,534-539. 

Herbert Anderson returned to the basement of Pupin Hall that evening. He retrieved his neutron source. He calculated how many alpha particles the uranium oxide coated on a metal plate inside his ionization chamber would eject spontaneously in its normal process of radioactive... 

Nijmeijer, S., Leurs, R., Smit, M. J., Vischer, H. P. (2010). The Epstein-Barr virus-encoded G protein-coupled receptor BlLPl hetero-oligomerizes with human CXCR4, scavenges G alpha i proteins, and constitutively impairs CXCR4 functioning. Journal of Biological Chemistry, 285(38), 29632-29641. Retrieved from, http //www.hubmed.org/ display.cgi uids=20622011. 

Figure 10.5 Van Der Waals.m file for retrieving critical properties of a substance and estimating the molar volume of both the gas, GasVol, and liquid, LiqVol, the compressibility factor, Zval, the gas thermal expansion coefficient, alpha (a), and the gas isothermal compressibility, kappa (k), for a selected substance at the given absolute pressure, P, and temperature, T.

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