Test to assess the adequacy of a sample size for statistical analysis?

I would like to know if there is an existing statistical test, like for instance the Kaiser-Meyer-Olkin test for sampling adequacy used for the PCA, to test if a sample size is numerically big...

20 November 2020 3,077 5 View

Agricultural Sensors: What detection ranges should they have for GHGs and ammonia?

Dear all, If you want to estimate ammonia, nitrous oxide, methane and carbon dioxide emission from: - arable soil - slurry storage - livestock barns which range of detection should have the...

19 January 2020 2,378 3 View

Where can I found the molar absorptivity or molar extinction coefficient (epsilon) of the Lumogen F Orange Dye 240 and Lumogen F Red Dye 305?

I am doing some simulations with the dyes dispersed in a PMMA and I want to test the device with different dye concentration (ppm). In order to do so, I need the molar absorptivity/molar...

17 July 2019 7,109 2 View

P-value estimation in correlation test?

Good afternoon, I have a trouble with the output obtained from a correlation test performed, using Spearman's correlation coefficient, with R Software. The output obtained is the...

10 June 2019 9,741 3 View

Funds for PhD?

Good morning, My name is Marcello Franchini and I'm a Research Fellow at the University of Udine (Italy). I obtained the possibility to perform a PhD abroad but, in order to perform it, I need to...

08 April 2019 4,895 3 View

There is something outside of language or everything is mediated by language?

Recently I interviewed Professor Hans Kellner Dodds on the relationship between experience and language. The argument of the teacher, based on readings of Auerbach, Jakobson and Barthes, is that...

27 October 2016 7,231 30 View

Is there anybody working on the parameterization of the relationship between attached and free-living bacteria in ocean biogeochemical models?

15 June 2015 6,299 3 View

What is the best way to induce drought stress in wheat seedlings?

I need to grow 3-d old seedlings of durum wheat under drought condition and see the effect on cell wall modifiing enzymes at root level. Do you suggest use of PEG (4000 - 6000 or 8000)?

15 May 2014 6,399 4 View

Definition of 'interactive sound environment'

hi, I am looking for a definition of 'interactive sound environment'. With this term I refer to any system that uses the user input to affect the real time generated sound, such as in a...

01 January 1970 1,929 3 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

Can you perform the Murexide test on samples fixed in Formalin?

I have a fixed sample and would like to use the murexide reaction to test for uric acid composition. I no longer have fresh samples

22 February 2021 1,328 1 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View

What is the stability of 2 3-dihydroxyquinoxaline in acidic water?

I'm developing a UHPLC assay, and the fluorescent product is 2,3-dihydroxyquinoxaline. The reaction to produce this requires hydrochloric acid (about 1.2 M). Will storage in this acidic...

20 February 2021 5,820 4 View

Antibody amino acid sequence database to simulation?

Hello, I need your help. I am looking for a database of antibody amino acid sequences for later simulation in a program in order to analyze their structure. The antibodies I need to test...

18 February 2021 371 4 View