How do you calculate the amount of gold nanorods (GNRs) from the gold concentration?

I synthesize GNRs (having spherical ends) with the seeded growth method and then I washed them through centrifugation; this means that I lose some GNRs during the washing. However I can state the...

15 November 2020 8,856 3 View

Why does my agarose gel run so bad?

Hi everyone, I've run this gel with 1X TAE buffer at 70, 80, 90, and 100 V, separately. Every time i got a bad run just like the attached pic!!!

14 January 2019 239 9 View

If scientists got some money, what they will do with it?

If scientists got some money, what they will do with it?

07 March 2018 2,235 13 View

Can MetaPhor agarose compete with polyacrylamide?

I have a procedure involves the using of polyacrylamide, but I don't have it! Can I use MetaPhor instead? What limits the using of MetaPhor instead of polyacrylamide?

01 March 2018 2,866 2 View

What kind of relationship between DNA methylation level and gene expression?

I investigated the relationship between DNA methylation level and gene expression in different plant species under different affects, and I found it negative in general. I get confused when I read...

01 March 2018 4,043 4 View

Why does plant still activating the mechanisms of stress tolerance even if growth factors are adequately secured?

The plant in the attached image is a wild type! It have been grown in pots and all growth conditions were in educate levels. Why does the plant still show symptoms of stress! What is the role of...

26 February 2018 1,677 6 View

Is the gene expression of antioxidants in the different ecotypes is comparable?

We have collected different ecotypes of wild plants species, we intend to evaluate their ability to produce antioxidants by measuring the gene expression of such antioxidant, is that make sens?

25 February 2018 6,061 3 View

What is the suitable kit for extracting DNA from seed tissue?

In many occasions I have problems with DNA extraction from seeds tissue, especially wild types seeds.I tried different protocols, but i still have invalid DNA! Did any body experienced an...

23 February 2018 8,183 4 View

How to evaluate the results of the DNA sequencing?

When you receive DNA sequencing results as in the attached image, is it generally possible to say that the results of the upper row are more confident than the results of the lower in the same image?

28 January 2018 1,229 2 View

How Nanotechnology Can Change the Concrete?

Nanotechnology ,Concrete

26 December 2017 7,195 4 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Do you have papers on hindlimbs myology of birds to share?

Hi all! My work team and I are looking for papers on muscular descriptions of the hindlimbs of birds (extant and extinct) that include the intrinsic muscles of digits. Any help will be more than...

22 February 2021 8,330 6 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

Are cloud points able to identify tree species?

Hello Dears My goal is to classify dense forest tree species using drone images. Is it possible to classify dense cloud points? If yes, in what way and in what software? Thankful

15 February 2021 3,475 3 View

Does someone know which structure could exit the olfactory bulbs at their antero-dorsal top ?

Hi people, I am studying bat brains through endocranial casts and I cannot identify which structure could be present in sort of a canal located dorsally to the cribriform plate. It is like...

27 January 2021 797 6 View

Does the pre-synaptic neuron location in a cortical map influences the spatial position of its synapses in the dendrite of the downstream neuron?

Are functional maps in the cortex used by the brain to carry out computations or are they just a byproduct of wiring minimization? A key element to answer this question is to know if, when...

26 January 2021 1,118 8 View

What is the magnitude of yearly rhizopdeposition in tropical forests?

Hi all, I am trying to find reference values on annual soil rhizodeposition rates for different kinds of forests, with a particular interest for tropical rainforests. Do we have an idea of the...

26 January 2021 4,278 4 View