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Hello there I'm a Ph.D. student in clinical psychology and need to learn R software. I have enough knowledge of SPSS and AMOS. Are these skills enough for starting R software learning for...

23 October 2020 8,220 5 View

DLS: How to convert Number%,Intensity% and Volume% to q3,q6 or q0 distributions?

Hello, I am using a Malvern ZetaSizer for my work and as a result in this device, it is possible to get PSD based on Intensity%, Number%, and Volume%. My question is how to convert each of these...

14 September 2020 1,399 4 View

How does the grain size affect on density and heat convection coefficient?

How does increase of the grain size of steel influence the density and heat convection coefficient (Heat transfer coefficient) of the whole material?

22 November 2018 9,041 3 View

Dear colleagues. I am working on the assessment of collocation knowledge of EFL learners. Do you know any test that measures collocation?

What tests measure collocation knowledge? Are they any questionnaire on collocation knowledge?

28 December 2017 4,128 3 View

What is the average lentivirus transfection rate of cells in vitro?

I'm planning an experiment and want to transfect some cells with Lentivirus. I was wondering what is the approximate transfection rate in cells. I know this depends on many many variables...

05 November 2016 257 3 View

Looking for any experimental results in which crack progressions were recorded

Hi folks, Recently, I have been working on application of Image processing and computer vision techniques in damage detection. Currently, I'm looking for any types of experimental results such as...

09 September 2016 2,559 3 View

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I modeled a cylinder shell under the static compression load by Abaqus and could see the finite element results in Abaqus; however, when I want to optimize it via the optimization module in Abaqus...

31 December 2015 8,666 10 View

Is there any research about fire effects on soil micro-nutrient such as Fe and Zn?

This research could be an article, thesis, dissertation etc.

25 January 2015 5,186 3 View

Does anyone have the exact protocol for culturing fibroblasts from skin punch biopsy using the collagenase method? I have a 4 mm diameter skin sample.

Read 1 answer by scientists to the question asked by Noushin Lotfi on May 11, 2012

10 May 2012 4,943 1 View

how can I find some information about in vitro culture of rosa foetida?

It is the topic for my project

13 January 2012 1,652 10 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

Bought HUVEC from Invitrgen.need to revive it.expected it is cryofreezed in DMSO.Do I need to remove the DMSO for plating the cell for the 1st time?

After I cryofreeze the cell do I need to remove the DMSO for culturing the cell for next passages .

28 February 2021 7,738 3 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

Runs of nucleotides in Sanger sequencing?

I performed site directed mutagenesis, transformation, and then I sent out plasmids for Sanger sequencing and found out that there is extension of DNA just before the stop codon. I am not sure...

27 February 2021 547 3 View

Has anyone had luck using cell lines other than HEK 293 (such as COS1) to package lentivirus?

I am looking to package lentivirus in endothelial cells but I am opposed to using 293 cells due to personal ethics regarding the source. I have done some reading and saw that COS1, COS7, & CHO...

25 February 2021 3,030 1 View

What program can I use to caclulate dipole moment efficiently and without the need of excessive computation?

Hi, I am a third year chemistry undergrad doing my group project in which I need to predict the HPLC retention time of 20 aromatic molecules. to do this we require the chemical properties of these...

24 February 2021 1,384 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

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22 February 2021 9,932 11 View