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Virology Manual

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Virology Manual

The development of routine cell culture methods has reduced the importance of eggs ..... Reed and Muench devised a simple method for estimation of 50% endpoints ... The accumulated mortality ratios and the percentage mortality for each ...

http://www.ijmm.org/documents/virologymanual.doc

Date added: October 17, 2011 - Views: 109

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Photobacteriosis in some wild and cultured...

Fifty isolates of Photobacterium damselae subsp. damselae were recovered from the investigated ..... A simple method of estimating fifty percent endpoint.

https://ag.arizona.edu/azaqua/ista/ISTA8/FinalPapers/12/3%20Fish%20Disease%20Bacterial/3%20Photobacteria%20salah%20meselhy/Photobatcteria,ISTA8%20reprint.doc

Date added: October 23, 2015 - Views: 3

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Download (206Kb) - The University of Liverpool...

Group 2 was inoculated with 100 µl (103.51 CD50/chick) of aMPV subtype B same as previously. ..... A simple method of estimating fifty per cent endpoints.

http://repository.liv.ac.uk/2004403/1/Final%20Version%20%20aMPV%20FTA%20card%20%2004_06_12%20(%20Avian%20Pathology%20Journal%20.doc

Date added: September 14, 2015 - Views: 3

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CHAPTER 13

The percentage rule of thumb method for determining sample size can be shown to be ... companies qualifying in the sample, a 5% rule of thumb would yield a sample size of 50. ... and (3) the level of confidence required in estimates of the population values. .... Here is a simple example to show the value of a pilot study.

http://140.133.72.206:8080/7300/%E4%B8%96%E7%95%8C%E5%90%8D%E6%9B%B2100%E9%A6%96/%E8%A1%8C%E9%8A%B7%E7%A0%94%E7%A9%B6/%E6%B2%88%E6%B0%B8%E6%AD%A3/18031%E8%8B%B1%E6%96%87%E7%89%88%E6%95%99%E5%AD%B8%E9%85%8D%E4%BB%B6/content/Chapter_13/Assess/IM/burns05_im_13.doc

Date added: December 8, 2015 - Views: 3

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Sampling and Sample Size

Estimate the required sample size based on power calculations (for comparative ... For your research question, write up the Sample Size section of the methods. .... The main results to be reported might be the percentage of residents who consume .... Before proceeding to sample size estimation we need to review the basic ...

http://www.columbia.edu/~mvp19/RMC/M6/M6.doc

Date added: August 28, 2011 - Views: 168

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Chapter 4: DISSOLVED OXYGEN MEASUREMENT

Indicator solution: A solution used to determine the endpoint (usually a color ... The Winkler method is based on the ability of the DO in a sample to oxidize ..... known amounts of analyte to a sample and calculating the percent recovery. .... Dissolve 50 g technical grade copper sulfate (CuSO4 5H2O) in 500 mL distiller water.

https://www.dep.state.pa.us/dep/deputate/waterops/redesign/NPDES%20Lab/Chapter%204.doc

Date added: September 28, 2014 - Views: 15

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Test Method - Air Resources Board - State of...

The SO2 fraction is measured by the barium-thorin titration method. ... the water in a Method 5 impinger system with 3 percent peroxide solution, .... 5- and 50-ml sizes. .... and titrate to a pink endpoint using 0.0100 N barium standard solution.

http://www.arb.ca.gov/testmeth/vol1/meth06_clean.doc

Date added: February 4, 2012 - Views: 39

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Fertilizer Analysis Protocol

For urea fertilizer, the total N estimation method is followed. ... Devarda's alloy (50 percent Cu, 45 percent Al, and 5 percent Zn) reduces NO3 to .... For basic slag and fertilizers containing iron or aluminium phosphate: Treat 1 g of the ..... Once the endpoint is reached, the titration is stopped and the TOC content calculated.

http://agra.ciat.cgiar.org/docs/downloads/FERTILIZER%20ANALYSIS%20PROTOCOL.doc

Date added: May 4, 2013 - Views: 17

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WHY SAMPLE - KSU Web Home

Several methods for obtaining probability samples are described below. Simple Random Sampling: A simple random sample of size n drawn from a finite ..... that "we are C% confident that the parameter is between the endpoints of the interval. .... A furniture manufacturer wishes to estimate the percentage of consumers who ...

http://ksuweb.kennesaw.edu/~pverhoev/12-10-04-Unit-Two.doc

Date added: October 19, 2011 - Views: 27

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CHAPTER 3

Substitution method: method of solving constrained choice problems by ... 2005 34 percent of Americans reported being “very happy,” 50 percent reported being “ pretty ... a simple model in which reported happiness is a function of utility and estimate .... The budget constraint is a straight line, so you can find the endpoints by ...

http://geneseo.edu/~stone/sg3.doc

Date added: December 25, 2015 - Views: 1

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The Malo-Lactic Fermentation

A rough estimate of a wine's final ethanol percentage can be calculated by ... There are quite a few methods for measuring the alcohol concentration in a wine, some simple, others ..... Add about 50 to 100mL of distilled water to the beaker, or enough that the ... With a pH meter, the endpoint of the titration is at a pH of 8.2.

http://www.wwcc.edu/oca/syllfiles/200EV204A45327498141349223analysis.doc

Date added: October 15, 2011 - Views: 41

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III. Attributes Related to Study Design and...

This paper describes a weight-of-evidence evaluation procedure for .... into an ecological risk assessment are also described, along with a simple case example . .... well it estimates or predicts the effect defined by the assessment endpoint. ... expressed as the percentage of the total possible variability that the endpoint is ...

http://www.mass.gov/eea/docs/dep/cleanup/laws/weightev.doc

Date added: December 8, 2015 - Views: 3

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3 Statistical Considerations - Stockholm...

To detect a 50 % decrease within a time period of 10 years with a statistical power ... Statistical power and methods to estimate power are discussed in detail in Cohen (1988). .... of 5% applying a simple two-sided regression analysis for various magnitudes of .... The slope of the line describes the yearly change in percent.

http://www.pops.int/documents/meetings/gmptwg/twg2/meetingdocs/GMP-TWG-2_5-3%20Chapter%203.doc

Date added: May 14, 2013 - Views: 14

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Download

Read thoroughly the information regarding the instrumental technique to be used , do the .... Assume that the weight percent of NaCl in the unknown is 50%. ..... To construct the acid-base titration curve of histidine, and estimate their pKa values. ... Titrations using a pH meter to determine endpoints (potentiometric titrations).

http://www.sfu.ca/chemistry/groups/Li/chem215/Labmanual.doc

Date added: October 23, 2011 - Views: 97

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TB Ch 09.doc

You sample 50 of them and find a sample mean of $500. ... Another commonly used random mechanism, besides a simple random sample, is called: ... When you calculate the sample size for a proportion, you use an estimate for the ..... The percent defective for parts produced by a manufacturing process is targeted at 4 %.

http://www2.gsu.edu/~dscaas/testbank/TB%20Ch%2009.doc

Date added: October 19, 2011 - Views: 80

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Safety Assessment - Safe Work Australia

5.2 Consequence estimation ..... Even for a simple major hazard facility, the hazard identification and safety assessment may be ... A quantitative technique has advantages in ability to compare major incidents and easy ...... A stand-alone alarm improvement would be 50 per cent of the cost of a sprinkler plus alarm package.

http://www.safeworkaustralia.gov.au/sites/SWA/about/Publications/Documents/669/Safety%20Assessment.doc

Date added: December 5, 2012 - Views: 98

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How pure is your aspirin

A fairly simple way of detecting salicy(ic acid and aspirin in a mixture is to use ... it is worth doing some tests to make an estimate of the sensitivity of the method. ... Both aspirin and salicylic acid are weak acids and solutions of them in a 50/50 mix of ... You can calculate the percentage of aspirin in the mixture, assuming there ...

https://www.york.ac.uk/media/chemistry/informationforschools/tablets.doc

Date added: September 2, 2015 - Views: 4

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SWEpaper_revised_mts2.doc

A new estimate of sensitivity of Cascade spring snowpack to temperature of -11% per ... 2004) suggested a nearly 50% decline of Cascade snowpack has occurred .... The station precipitation values are converted to monthly percent of normal ...... A major tool has been a simple water-balance method for estimating monthly ...

Date added: March 1, 2012 - Views: 7609

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Aspirin Synthesis and Analysis

Quantitatively, the purity of an aspirin sample can be determined by a simple ... require more NaOH to reach the endpoint than if our sample were 100% pure aspirin. ... If the sample consists of ONLY salicylic acid and aspirin, then the percent ... of phenolphthalein indicator and swirl to dissolve the aspirin; Fill a clean 50 mL ...

http://faculty.scf.edu/GambinC/CHM%202046/CHM%202046%20Lab/Aspirin.doc

Date added: February 15, 2012 - Views: 129

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Assay of Thyroid Hormones and Related Substances

Jan 1, 2010 ... The majority of FT4 and FT3 methods only estimate free hormone. ... Some free hormone index (FT4I and FT3I) methods are based on a simple calculation that ... facilitated a higher percentage of T3 tracer being taken up by the scavenger and .... 4.0 pg/mL (2.1 � 6.1 pmol/L) (4,47,50,80,96,97,99).

http://www.thyroidmanager.org/wp-content/uploads/chapters/assay-of-thyroid-hormones-and-related-substances.doc

Date added: August 20, 2013 - Views: 48