Are there differences between performance of two identical Simple Wes machines?

03 December 2020 8,975 4 View

How do I produce a carbon composite consisting of 2 metals?

I have a question in regards to the formation of a carbon composite for wastewater application. I came across some articles that suggest doing co-precipitaition, however those articles requires...

20 September 2020 9,793 5 View

How do I fix my fraction collector, Frac-920 and AktaPurifier?

Hello all, I frequently use the Akta purifier for protein purification and recently have been getting error messages in unicorn saying "error 2012 no response frac, 900". The frac 920 is designed...

02 September 2020 2,757 1 View

Questions pertaining the use of Graphene from sugar: How effective is the coating?

Hi scientific community, I have read some articles pertaining to the use of regular sugar to form graphene composites would like to know some questions pertaining to it Is the composite...

07 August 2020 4,719 3 View

CSTR in series: why is it that 2 CSTR is series performs better then 3?

Hi all, I having some issues with the performance of my reactors. some context to question: 3 CSTR is series All of the reactors are equal in volume Reaction follows first order. (Fenton-based...

13 April 2020 7,459 3 View

Papers on Hop Domestication?

Hello, I am interested in learning about the natural history and domestication of Humulus lupulus. I have been unable to find any papers on this subject, so I am wondering if anybody could...

22 March 2020 4,157 5 View

No color in hot water extract after successive extraction with n-hexane and methanol?

Greetings I'm doing an increasing polarity successive extraction on tree leaves with n-hexane, methanol, and hot water successively. The n-hexane extract gave dark green coloration, while the...

04 March 2020 8,687 3 View

Do you have to clean out the his resin from a column if you are doing successive protein purifications?

30 December 2019 2,906 9 View

Disattenuating partial correlations with more than one covariate?

Hi, I'm trying to disattenuate the reliability of a partial correlation. I found a formula (attached) in Multiple Regression in Behavioral Research. However, I'm needing to disattenuate...

25 December 2019 9,250 2 View

No title

Hi i have some question in regards to this kit. My samples contains a blend of micro-algae and bacteria. I would like to to use this kit to quantify the dead/ live cells in my mixed liquor....

14 March 2019 5,691 1 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 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

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

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

Can anyone provide the Support vector regression code structure of LIBSVM MATLAB or python ?

Please, if Gaussian Parameter optimization is possible in this code structure

28 February 2021 278 3 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