Can RNApolymerase bind to RNA?

Given that the core enzyme tends to DNA in the cell, because of the electrostatic force. Why is there no such tendency between RNApolymerase 2 and RNA?

14 December 2020 2,708 5 View

What are the methods used to amplify the voltage received from two electrodes used in a micro channel to count micro and nano particles?

i'm recently on counting of micro & nano particle by methods like:impedance spectroscopy And I want to get a stronger voltage from my electrodes Who can give me a solution in this matter?

30 June 2020 6,963 8 View

I want to compare the difference of immune system in patient with mild and sever symptom.who should i define the case and control group?

Is it enough to compare people who needed to be hospitalized with people who did not? , or should the age and duration of the illness be considered?

26 May 2020 2,829 2 View

Why the covid-virus infection is very rare in children compare to young and adult people?

As we know the immune system in both children and adult is impaired. The question is that why the covid-virus infection is very rare in children compare to young and adult people

03 April 2020 9,934 11 View

Why do we have differences in numerical and experimental models in the damaged plastic model?

Considering the start of the cracks in the middle of the sample and the acts boundary conditions on both sides of the strain stress curve for composite It is linearly drawn up to the point of...

13 February 2019 2,176 2 View

What is difference between therapeutic and prophylactic group in research ?

I want to evaluate the therapeutic and prophylactic of a drug on RA model in rat. when i should started to administration of drug in therapeutic and prophylactic group? in some studies they...

23 March 2018 3,708 4 View

In known group comparison/differences technique, what is the sample size for each group?

I need to use the known group differences to check the validity of the constructs as part of developing a new instrument. The instrument has seven first-order constructs and one second-order...

03 March 2018 4,179 2 View

Which spleen mononuclear cells in culture plate attached to the bottom plate?

In some studies to measure cytokines in the supernatant for the culture of spleen mononuclear cells, after a while, the suspensions cells are separated from sticky cells and cultivated on a...

01 February 2018 5,035 3 View

How to make crude oil in the laboratory?

Hello How to make crude oil by combining different materials, such as gasoline? Also, can i determine API gravity (American Petroleum Institute) for this Crude oil?

07 January 2018 1,899 6 View

Can anyone help with a problem with dose and prepration of Streptozotocin to induce diabetes in Wistar rats?

01 December 2017 4,408 5 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

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 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

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 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

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View