Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

How does SEA software normally number subsystems?

Dear colleagues, What is the common subsystem numbering system in SEA modelling software (i.e. VA One, AutoSEA2)? Cheers, Feng

27 February 2021 7,073 3 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 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

What is causing the raw fluorescence to be negative?

Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...

09 February 2021 4,642 3 View

How to match the XRD of a compound for which there is no JCPDS file ? Is there any other characterization to claim the synthesis of desired compound?

I have synthesized LiMgF3 using the starting precursors LiF and MgF2 via solid state diffusion method. Now I am looking for some characterization to claim the desired product, as there is no...

09 February 2021 921 3 View

Can anyone suggest me broad host range fluorescence expression vectors for Gram-positive bacteria ?

Hi everyone, I am looking for fluorescence expression vectors for expression in gram-positive bacteria present in the skin microbiome. I need to tag them with a fluorescence marker and observe...

06 February 2021 2,566 4 View

How to determine measurement uncertainty of a mass balance?

Hi everyone, I work at a factory plant where they use a mass balance. The problem is that there is an huge difference between the input and output of one element. There are several people working...

10 February 2021 5,764 3 View

How can I multiply values with standard distribution and with triangular distribution?

I am calculating emissions considering the uncertainty of the data to do Monte Carlo simulation. Some variables such as yields have normal, lognormal or even uniform distributions. These must be...

03 February 2021 6,318 5 View

How are sensor input output equations found and the uncertainty in measurement?

My question is on how the input/output equations for sensors are found, for example a pressure sensor which relates force [N] to resistance [ohms]. Would this equation be found by measuring...

11 January 2021 1,482 4 View

Relativity is actually an uncertainty.?

04 January 2021 718 3 View

How can i get the data for the FTSE/JSE Responsible investment top 30 index (J110)?

Hi All , Please can you recommend a free database (i already use yahoo finance but it's not avaible) ,or if someone has already worked on this index for the period of 2015 it would be great to...

22 December 2020 247 3 View

Any good conferences on uncertainty and sensitivity analysis?

Hi everyone, I was wondering if there are any good yearly generic or field-specific conferences on topics of sensitivity and uncertainty analysis. Thanks! Shahroz

14 December 2020 9,347 5 View

How do you define Uncertainty in an Economic Decision Model?

How do you define uncertainty in an economic decision model? With this mathematical approach in mind, how should you make decisions?

05 December 2020 4,371 11 View

Where can I find data about quantitative and qualitative techniques being used by different venture capitalists say Accel, Benchmark etc?

I want to write thesis by making comparison of techniques being utilized by VCs to predict risk and make investment decisions. I think this comparison will help to add value by revealing new...

04 December 2020 6,680 4 View

How to set a threshold to identify uncertain and sensitive parameters?

Hi everyone, I am performing Sobol's sensitivity analysis and wondering if there is a way to set a threshold on sensitivity index so that parameters with a sensitivity index greater than the...

09 November 2020 2,093 1 View

Difference between Data-Driven Adaptive Robust Optimization and Adaptive Robust Optimization?

Could you make some points about the difference between Data-Driven Adaptive Robust Optimization and (classic) Adaptive Robust Optimization?

01 November 2020 9,653 3 View