Why do cell sensitivity to antibiotic resistance increase after lentiviral infection?

03 November 2020 7,754 2 View

How to calculate the capacity of a battery from electrodes capacity?

I found that 1/Q = 1/Q+ + 1/Q- for specific capacity, I will explain my problem. Let's imagine that my positive electrode is 300 mAh/g my negative electrode capacity is also 300 mAh/g If i do a...

26 August 2020 568 3 View

Does cytotoxicity measure vary at same molecule concentration but different cells concentration ?

I have made a cytotoxicity assay using MTT at 20K cells/well in a 96 wells plate. If I do a MTT assay at 50K cells/well and at 10K cells/well, will i found the same effect ? I tried to find some...

07 April 2020 1,901 4 View

What are the affordances of video to research and practice in education?

I'm interested in digging deeper about the question : What are the affordances of video to research and practice in education? Please feel free to suggest a good paper on this theme. If it is...

27 November 2019 4,010 4 View

How to build an optimal computer for DFT calculation at a reasonable price?

I would like to build my computer from the beginning, part by part, in the purpose of DFT calculations and computational chemistry. I never did that and I'm kind of a noob in computer science. So...

22 April 2019 840 4 View

Why transformation of diploid strains in yeast is less efficient than haploid ?

Hello, For some time I realised the diploid w303 wt strain I was using was less efficient in the number of transformants I was getting. So I did a small transformation control with two different...

16 October 2018 7,486 2 View

What's the physical structure of space-time ?

A. Einstein in 1920 realized that his theory might not be complete, in the sense that Mach's principle was not consistently applied to the general relativity theory as space-time is not made of...

26 June 2018 3,196 51 View

How to neutralize social desirability in items (likert scale)?

Recently I've been reviewing how to handle social desirability in testing. After much theoretical review I have come to the conclusion that the best way to do this is to neutralize the items from...

27 February 2018 8,781 8 View

Is there any way to perform normative analysis based on the results of forced choice items?

Is there any possible way? I understand that if the options point to the same trait, it can be done. for example a question of the type: I work better: (a) individually (b) with other...

11 February 2018 9,664 8 View

How do multiple choice tests work in which any answer could be correct (at reliability, validity, calculation of scores, etc)?

04 February 2018 2,428 8 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View