How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

How to indicate the degree of litter decomposed by microbes?

Any technique could detect the degree of litter decomposed by microbes? Or any indexes could do this job? I want to split the contribution of microbes during decomposition, so any suggestions...

23 February 2021 1,362 5 View

How to estimate 2SLS with different instruments for different endogenous variables?

To be specific, I want to conduct an IV regression in stata with the following three equations. EQ1: Y1 ~Y2 Y3 X EQ2: Y2 ~ Z1 EQ3: Y3 ~ Z2 Both Y2 and Y3 are endogenous. However, Z1 and Z2 are...

23 February 2021 6,266 3 View

How to remove the species data from rda data frame in R (only remain the sites/samples point)?

Dear everyone, When I using the rda function in r, I met this question. As you can see in the figure, there are a lot of deep blue points which refers to the species. But I would like remain...

15 February 2021 8,982 2 View

How to do DNA normalization based on qPCR values?

Hi Everyone: I have a question regarding to qPCR. I am trying to do RT-PCR, and I want to have equal amount of input DNA for my RT-PCR, so I normalize my DNA input based on qPCR values of a...

31 January 2021 6,977 4 View

How to simulate enzymatic hydrolyis of sucrose in a CSTR coupled with ultrafiltration membrane with comsol?

Dear all, I am trying to simulate the enzymatic hydrolysis of sucrose with invertase in CSTR in Comsol. The reaction pathway is such that Sucrose + Water -> Fructose + Glucose. It is desired...

27 January 2021 2,525 4 View

How to design an Ultrafiltration membrane for a CSTR?

Dear all, I am designing an Ultrafiltration (UF) membrane coupled with a CSTR. It is desired to utilized a dead end stirred reactor. The main purpose is to separate the enzyme used from the final...

27 January 2021 7,924 1 View

MS/MS protein analysis?

Hi Everyone: I want to quantify the relative amount of a protein in 2 samples. I will first digest the sample with trypsin, and subject the resulting peptides to LC-MS/MS analysis. I will then...

25 January 2021 8,333 3 View

What effect will different solvents have on the ATRP reaction?

I want to do an ATRP reaction, synthesize an ATRP initiator, use DMF as a solvent, and mix DMF, BIBB and TEA to turn red. Why does it turn red? Xylene has been used as a solvent before, and there...

04 January 2021 8,034 3 View

How to solve carry-over and interference problem when detecting tulathromycin by LCMS?

I am working on the determination of tulathromycin in rat faeces using QE-focus (Thermo Fisher)(Waters BEH C18, 2.1x100mm, 1.7um)(0.1%FA+H2O, 0.1%FA+ACN) . I encountered two tricky problems....

02 January 2021 2,713 5 View

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02 March 2021 324 2 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

What is the value of Conference Review Paper?

How much value does a review paper carry in a higher study aspirant student's profile which is presented in a Peer Reviewed Scopus Indexed conference?

27 February 2021 2,068 3 View

Are you looking for a quality online conference on teaching and learning technology?

This large international conference will be held online this year due to COVID. I am submitting a paper to the Technology Enhanced Language Learning track (8). It is about a topic I have never...

15 February 2021 1,975 15 View

Fractional derivative users, are you on the same page with me on the validity of the fractional order parameter, say alpha?

Taking a fractional ODE problem as an example. It has come to my attention that if the fractional order parameter is in the interval (0,1], many only presents results for alpha=0.9, 0.99. I saw...

08 February 2021 9,671 3 View

Infinite order of Laguerre?

If Lmn(x) is the Laguerre polynomial of order m and degree n Is there a means of computing Lmn(x) for 1) m goes to infinity 2) n goes to infinity

08 February 2021 6,320 4 View

How to select from various invitations from Scientific Boards in conferences and proceedings?

How to select from various invitations from Scientific Boards in conferences and proceedings? How to spot the ones with high impact and genuine? Can we spot valuable events?

02 February 2021 8,187 1 View

If CI crosses 1 (0.871-1.072) but b parameter is less than 1 (b=0.971) is the regression significant?

This question is related to a regression analysis conducted on log adjusted values of VO2peak and lean body mass of children. I would also like to know if the b parameter is significant, can it be...

01 February 2021 6,566 8 View

What is the most appropriate design (statistic test) to assess the toxicity of 2 different compounds at 6 different concentrations and 2 conditions?

10 January 2021 8,077 3 View

Can Fecal Microbiota Transplantation from young heathy person to elderly persons improve health conditions?

06 January 2021 7,353 10 View