Why is gravity taken as 10 m/s^2 while gravity is changing at some places like equator where gravity is less?

Weight depends on change in gravity while mass is a constant. so our weight decreases when we r at high altitudes. so it is is clear from this that gravity is changing . so how do people accept...

06 July 2017 707 2 View

How r black holes formed ? How did the radiation from two black holes colliding in universe had an effect on earth on 2015?

What is the reason behind black holes for absorbing and emitting everything that goes by their way?

06 July 2017 5,245 3 View

Why have I got broadened peaks for my XRD graph?

I have slightly sharp peaks. Can anyone tell me from my graph whether my particles are nanoparticles or of amorphous nature? I have attached my file herewith. Some say that that my particles are...

11 December 2014 3,522 20 View

What is the interpretation if we get a step like absorption in UV-Visible Spectroscopy?

I got so many peaks and it also increases what is the interpretation for it.

11 December 2014 8,428 16 View

How do you calculate FWHM from 2theta and wavelength values?

Is there any formula to calculate manually FWHM? If it is so please give me the formula.

11 December 2014 1,243 1 View

What will be the difference in band gap value for nanoparticle from its bulk material?

09 October 2014 992 6 View

How can I calculate the size of nanoparticles if they are not spherical?

09 October 2014 6,995 14 View

How can I calculate the volume of hexagonal structured nano particles?

From XRD data the nano particle structure is hexagonal. How can I calculate a,c and volume if my two theta value is slightly deviated from standard value?

09 October 2014 9,900 9 View

How can I find out whether a synthesised material is nano or not?

The XRD results show the size of the particle is 5 nm. But TEM results show that the particle size range from 5-100 nm. How can I sure that the material is nano?

05 June 2014 795 28 View

What type of peak should I get for nanoquantum dots in XRD graph?

In XRD patterns around 10 peaks are present for the sample 1. Also, around 6 peaks are present for the sample 3. Also only one broad peak is present for the sample 2. In addition, XRD patterns for...

05 June 2014 2,988 5 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 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