How should I compute a new variable with z-scores?

I would like to create a new variable using 4 different measures: hIndex (range: 1-47), # of publications (range: 0-111), and 2 other measures (range: 1-7). I changed all of these variables into...

09 February 2021 4,866 3 View

How can you confirm new liquid FTIR cell fits calibration?

We have an FTIR instrument which was calibrated in transmission/absorption mode using a set of cells for different ranges of D2O concentration. One of the cells at high range broke and the new one...

16 January 2021 4,791 2 View

Does increasing the number of individuals by copy-paste of the same indvs to perform GWAS affect the results?

I am trying to perform a genome-wide association on mitogenome variants (obtained from GATK-Mutect2) vs. phenotypes by using GAPIT. The number of individuals is seven and GAPIT function does not...

14 December 2020 8,853 3 View

Is there any possibalities of PDMS coating on Biochar Powder?

Hello, I'm doing a research regarding gas adsorption on hydrophoobic biochar. Is there any way to coat PDMS on the biochar powder?

05 October 2020 5,610 1 View

Free database for auditory stimuli?

Hi, I'm currently looking for auditory stimuli (list of letters; word/non-words; etc) to include as distraction task in my experiment. Does anybody know a free database that I might download?...

04 October 2020 9,614 3 View

Emotionality and attachment in cats?

Are cats emotional? How can we explain the attachment in cats?

03 October 2019 3,858 2 View

Would you indicate treatment by intralesional injection for bone metastasis?

Hello people! I would like to understand if oncologists and doctors in general would be interested and indicate treatment for bone metastasis originating in breast cancer, ER +, PR +, HER-2 - with...

14 September 2019 4,322 3 View

Is my new measure "more valid" than existing measures?

How do I determine whether a new measure I'm developing is "more valid" than existing measures of the same construct? I'm proposing to develop a new measure that is more inclusive of the...

15 May 2019 9,893 4 View

qPCR melt curve peak doesn't correspond to gel, why?

I'm having an issue with non specific binding of my primers. I've tried many primers and this is the least messy primer pair but I am still getting a second melt curve peak when doing serial...

19 September 2018 3,940 3 View

Recommendation for molarity of Citrate buffer to use with C2C12 myotubes?

I am planning an experiment using TTX on C2C12 myotubes. The TTX should be reconstituted in citrate buffer pH4.8. I am now trying to find out which molarity of citrate buffer can be used for C2C12...

05 July 2018 2,754 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

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

02 March 2021 7,082 3 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View