Does the amount of ammonium measured by the electrode depend on temperature?

19 November 2020 6,315 12 View

I am seeking for a Questionnaire which is in this book: Consumption Values and Market Choices: Theory and Applications, does anyone have access to it?

For my new research, I need a questionnaire regarding consumption value theory (specially conditional value questions), Sheth 1991 has a standard questionnaire in his book which is named...

02 May 2020 731 2 View

What do you think about resilient supply chain?

According to the spreed of COVID-19 ,many supply chains all around the world, have been affected by negative impacts of this virus, especially in countries with the highest prevalence. In this...

11 March 2020 7,035 9 View

Is there any reference value that can be compared to the obtained health risk index (HRI)?

In order to evaluate the risk from tomato ingestion in the presence of organic wastes, health risk index (HRI) of heavy metals in each treatment were calculated . Is there any reference value...

14 July 2019 8,279 1 View

What is the probable reason for mismatch between results of fluorescent microscopy and flow cytometry?

I used a GFP vector to evaluate the transfection efficiency. the negative control, is a GFP-free vector. results of Fluorescent microscopy show transfection at rates higher than 90%. But the...

20 September 2018 1,346 6 View

Correlation coefficent of two catagorical variables

Hello, Is there anyway to have the correlation coefficient of two categorical variables ,both ordinal and nominal (For example level of education and ethnicity)? I have checked the independency by...

30 July 2017 3,229 3 View

Phosphoserine simulation using Gromacs

Hi Dear all I want to simulate a protein containing phosphoserine using MD, so I place the force field into the working directory and modified all parameters such as SEP (phosphoserine) was added...

15 June 2017 960 8 View

Can anyone help me about PCR of DNA extrected from Mia-paca-2 cell line?

Dear all, I should extract DNA from some cancer cell lines and perform PCR for its. I did it by Qiagen kit. From among all, PCR of DNA from Mia-paca-2 cell line (cell line of Pancreatic cancer)...

23 September 2015 6,523 3 View

I want to test the effect of lacking a gene on male infertility. How many male I should mate? and how many female I have to mate with the KO male?

06 August 2015 3,293 1 View

Which kit is more accurate for determination of protein concentration in SDS- Page sample buffer?

Which kit is more accurate for determination of protein concentration in SDS- Page sample buffer?1- Protein assay kit (Bio-RAD)2- 660 nm protein assay (Thermo scientific)3- 2-D quant kit (GE...

20 August 2014 9,614 10 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 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

Complex wave form in ANSYS?

Is there a way to input wave speed in a complex form on ANSYS? The wave speed I need to assign a material is 325(1+0.11i) however I have been unable to do this thus far. Failing that, is there...

27 February 2021 5,969 1 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View