In PRIMER, is it possible to downweight certain taxa in multivariate community datasets to reflect uncertainty around identification??

I have a dataset with about 80 different species. As usual, some species are very easy to identify with certainty whereas others are more difficult, which means that I am less certain of my...

03 March 2021 8,066 4 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

When I mix oil and NaOH solution, Why solid layer in the surface is formed?

During my trial for lubricant oil re-refinery process, I use NaOH as coagulant agent. After overnight of gravity settling, a solid layer in the surface was form. what product is that? since the...

22 February 2021 2,116 4 View

Rearranging abbreviation list in LaTeX ?

Hi, I'm trying to rearrange an abbreviation list for a manuscript such that it would be listed in alphabetical order. Is there a function that does this automatically or is manual my only option?...

18 February 2021 4,870 2 View

Person-Codes for questionnaires in longitudinal studies: Is there an easy solution for better matching-rates?

Hi, I have a problem regarding matching of longitudinal data in my field of research (university students). We have a Person-Code for matching data measured in different time points, but 30%+ of...

17 February 2021 3,075 4 View

How to fix weka classification errors?

I have two datasets, one been the training set and the other the supplied test data. I'm trying to predict the rogue clients using the datasets provided. I have classified the data by initializing...

08 February 2021 5,900 6 View

How to measure the concentration of a labeled protein with no tryptophan or tyrosines?

Hey I'm trying to measure the concentration of a protein I've purified and then labeled with Atto 647 flourescent dye. The protein has no tryptophans or tyrosines (although does have...

04 February 2021 4,482 4 View

Is the use of "multivariate " or "multivariable" was correct in multiple responses study ?

In statistics most of the time, we use these two-term exchangeable, but in my opinion, there is a difference between them. Please suggest your opinion

04 February 2021 7,407 7 View

How do microbes tell the presence of an inorganic minaral in the soil?

Due to their ubiquitous nature, there is a tendency of the presence of microbes in a given mineral(s). For instance, if microorganisms that love the of pH less than 6 in the pH value, is isolated...

03 February 2021 4,630 10 View

Do you have any suggestion for multicriteria decision-making software?

I want to compare a set of alternatives by using multicriteria assessment but testing both compensatory and non-compensatory decision rules. At the moment I have in mind Definite...

25 January 2021 2,454 4 View

Do anyone here can help us in the field of molecular docking?

We have synthesized various metal complexes with different environment around the metals. Now to see the application of synthesized complexes we need this study also. we are also interested in...

01 March 2021 1,899 2 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

How to determine solutionizing time for cast Al alloys?

For wrought alloys soaking time at solutionizing temperature is determined by thickness .Do we have such standards for cast Al alloys

23 February 2021 8,839 3 View

How to calculate stress at the cross section of spherical particles within a matrix?

Hi all, I am currently working on some background calculations before I start a new project related to metal matrix particulate composites. I am trying to find a way to calculate the stress at...

19 February 2021 8,503 3 View

What is the detection limit of ED-XRF technique for transition metals in silicon ?

Hi everybody, please, can someone tell us if the transition metals (W, Fe, Ni, etc ...) in silicon destined for solar cell manufacturing can be detected by ED-XRF technique. Note that the...

18 February 2021 6,231 4 View

What are the main conditions suited for synthesizing a PVDF thin film by solvent casting method?

I have been trying to synthesize PVDF thin film by solvent casting method. I started by using 2:3 DMSO: acetone as solvents. The solution was stirred for 3hrs at 60 deg and was dried at 90 degrees...

09 February 2021 8,850 3 View

Ligands with 3,4,5-trihydroxyphenyl group?

Hi In the design of a bidentate ligand with imine group, is it okay to have a 3,4,5-trihydroxyphenyl group in the structure? In other words, does the 3,4,5-trihydroxyphenyl group compete with...

08 February 2021 4,977 7 View