Does anyone have an idea about the Mixing Procedure for the 3D printing concrete ?

The mixing procedure should include : - mixing time - mixing speed and this for the entire composition (dry mixing and after adding water) If you have any references i would be happy if you can...

30 June 2019 4,632 2 View

Preparation of electrolyte for sodium-ion battery - salt not dissolving?

Hello, I am trying to prepare the following electrolyte: 1M NaPF6 in 1:1 EC:PC. The salt does not dissolve completely even though I have dried it and added slowly (under stirring) to the solvent...

05 February 2019 4,547 3 View

What is the concentration of miRNA 21 in normal Cell and in Biopsie of breast Cancer ?

14 February 2017 9,219 1 View

How to be defined the thermodynamic magnetic field Hc from curve M(H).

This figure shows the M as a function of H at T fixed.How to be defined the thermodynamic magnetic field Hc from curve M(H).

21 January 2017 8,805 4 View

How can i repare an Ag/AgCl reference electrode ?

15 October 2016 8,015 11 View

What are the best way to remove the polystyrene (PS) beads which coated with a metal (Ag, Au or Pt).

30 August 2016 8,105 4 View

Is there any way to prepare my own AIN-93M diet for mice?

I need a AIN-93M diet for rodents, how can i prepare it ? especially the vitamin mix and mineral mix. regards

29 March 2016 1,742 1 View

Why is wave particle duality important ?

Dear all. Sensors are often used to detect specific physical phenomena (displacement, magnetic fields, temperature, etc.). The acquired signal is generally in the form current, voltage, etc....

01 January 1970 9,817 97 View

Is the GAUSSIAN Law of Everything ?

Dear all. The Gaussian function is mostly used in statistics, physics and engineering. Some examples include: 1. Gaussian functions are the Green's function for the homogeneous and isotropic 2....

01 January 1970 5,315 3 View

How to predict Existence of some Phenomenon or Physical Principle ?

Dear all, Mathematical models and theories are meant to provide efficient and accurate approximations of physical phenomenon. Some models have been ignored assumed to be true for hundreds or...

01 January 1970 6,073 15 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View