How do I change g/l into mM for bacto agar. I am trying to get the millimolar content of sodium and chloride percentage in bacto agar. How do I do it?

I am doing a salt tolerance-related experiment and for that I need to relate my salt levels to that in bacto agar. I don't want my salt concentrations to increase due to already salt content...

09 February 2021 4,158 1 View

Why does the DNA's elution decrease after centrifuging with spin column?

02 January 2021 987 4 View

A three level hierarchical data structure in multilevel modelling, for multiple response question?

Im refering to Andy Field's example in his book Discovering statistics using SPSS, 3rd edition, page 728, where he gives an example of a data structure with level 1 variable is a memory recall...

26 December 2020 9,717 6 View

What is the reasons of increased th molecular weight of some chemicals in plant when the concentration of a pollutant that effectin on plant?

please need paper explain this case

23 December 2020 2,657 2 View

Mutagenesis PCR Variable Yields Despite Exact Same Conditions???

Hello fellow scientists, I could really use some advice! I'm using a new(ish) Bio-Rad T100 thermocycler to run a mutagenesis PCR using NEB's Q5 Site Directed Mutagenesis kit (E0554S). My PCR...

15 November 2020 2,828 11 View

Grounded theory or Interpretive phenomenological analysis? Which is best for dissertation studying perinatal mental health?

I am curious what the differences are between using grounded theory or interpretive phenomenological analysis (IPA) for my dissertation. I am seeking to both complete my dissertation for...

29 October 2020 3,066 4 View

RBC's contamination during DNA extraction ?

Hi there! currently i am working with spin column kit for DNA extraction I've put almost 600 uL of buffy coat. after a lot of washing, the RBC's remained stucking in filter? How could i get rid...

25 October 2020 8,712 4 View

How to measure internal validation of multiple regression using a split-sample method with dichotomous variables?

I would like to validate a regression model using a 50-50 (or 80-20) split method. In my initial multiple regression I have entered all predictor variables using 'enter' technique. My sample size...

20 October 2020 2,849 5 View

How to aggregate expert opinion for Fuzzy AHP methodology?

Any recommended method or approach? Appreciate the support.

11 October 2020 5,290 6 View

What are the psychological effects on children during the COVID 19 pandemic?

I am working on the Psychological impact of COVID 19 on children of health care workers. i need references and guidelines for research on this topic.

20 July 2020 2,791 19 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

What information can be had from raman at higher wavenumber?

i have recorded raman spectra of strontium oxide thin film. the spectra were recorded in the range 400 to 4000 cm-1. i have reference to peaks upto 1000cm-1. but i couldn't find literature for...

26 February 2021 2,499 1 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

How to resolve Gaussian error termination " Error termination via Lnk1e in F:\G16W\l103.exe" for TS(QST3)?

When I run the job for TS(QST3) in gaseous phase, it was completed without any error. But when I add water in CPCM model it terminated with an error: Inconsistency: ModMin= 2 Eigenvalue=...

21 February 2021 3,198 2 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

Using the Pfaffl method: Is it possible that the ratio of the calibrator does not equal 1?

Hi all, I have a question regarding calculations using the Pfaffl method. I have 3 groups per experiment: 1 control group (calibrator) and 2 treatment groups with 6 to 7 biological repeats per...

19 February 2021 8,351 2 View

How to calculate the Atomic Polar Tensor using DFT ?

Dear friends, I am a beginner at DFT calculation. I have done a structure optimization using DFT- B3LYP/6-31G*, Nevertheless, I don't know How to calculate the Atomic Polar Tensor (APT) in...

17 February 2021 9,082 3 View