Hi i want to ask that in order to find out LC 50 (96 hours) of particular toxin for fish. Should we keep the animals with food or without food?

if we expose the fish after acclimatization to particular toxin in order to find out LC 50 (96 hours).Should we keep the fish off feed or with feed for that duration. Some literature show that...

24 February 2021 357 2 View

How COVID-19 has affected mental health?

The pandemic has led to depression and anxiety and its negative effects shouldn't be ignored. However, it has also led some people to become more resilient! What do you think? Thank you.

21 February 2021 4,733 19 View

Is There are any idea to achieve H NMR signals for swollen compound ??

the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please

16 February 2021 8,801 3 View

Pseudo random number generator in Matlab code ?

i want to implement pseudo random number generator in matlab ...i request to every one if someone have code these PRNG share with me SplitMix Permuted Congruential Generator (PCG) Random...

14 February 2021 6,828 7 View

Please ,How can I correct this kind of error?

27 January 2021 4,815 5 View

What are the standard parameter values of the commonly used classifiers?

What are the standard parameter values of the commonly used classifiers such as Support-vector machine, k-nearest neighbors, Decision tree, Random forest?

06 January 2021 6,940 7 View

PDF of a Book?

Can anyone provide me the PDF for Distributed Energy Resources in Microgrids (Integration, Challenges and Optimization)?It would be really helpful

27 December 2020 8,015 3 View

Simulation of Smart Grid?

Somepne please help me where to learn the simulation of Smart Grid on YouTube or other bookr esources?

22 December 2020 421 3 View

Doping of r-GO?

if the percentage of doping Au into rGO is too small 1~10%, is it not enough to prevent restacking of r-GO in xrd results, rGO peak appeared at 22.2 and also the peaks of gold nanoparticles so...

21 December 2020 6,091 3 View

XRD peaks for gold nanoparticles ?

is the concentration of gold salt that were added will affect on the peaks appeared. i added a very little amount of gold salt to dope graphene oxide and not all the peaks that proved the...

17 December 2020 9,275 3 View

Does anyone have a copy of the sTOFHLA?

Peppercorn books is out of business, and that the creator of the test has been dead for over 5 years. I am looking to use this tool to assess literacy in community dwelling seniors as part of my...

25 January 2021 4,061 2 View

I need books or anything else to help me to understand options and others financial derivatives products in english or french?

I am studying at Laval university and one of my course is about options and financial derivatives products , I really have some difficult to understand that course so I am looking for any...

20 January 2021 3,742 3 View

No title

01 January 2021 5,831 1 View

No title

16 December 2020 2,388 3 View

Questionnaires in French and Italian?

Hi to everyone. For my Master's Thesis about ASD in Switzerland I need some questionnaires in French and Italian, as I already have the the German versions. Maybe someone knows if there are...

07 December 2020 3,943 2 View

Anoxic protein purification - Impact of sonication on Fe-S cluster proteins?

Dear all, I need to purify anoxically a protein with Fe-S clusters (sensitive to oxygen). I used to do cell lysis using a French press but because the instrument is too big to be place in my...

08 November 2020 9,528 3 View

Understanding the Annales School?

I feel I have a reasonable sense of the contribution made by the French Annales school in the interwar period and its postwar reception but am certainly not an expert. As such I find it very hard...

05 November 2020 3,552 2 View

Do you know someone with knowledge of France in 1700s?

I am in search of those who are familiar with the French & European societies at the end of 1700s to join me in writing a book as my co-authors. The book is on Marie Antoinette. Looking at...

01 October 2020 9,095 5 View

Washing dye off gel filtration column?

Hi all, I was wondering what is the best way to get rid of the organic dye off my mini-gelfiltration column. I washed my column with excess 20X H2O and the dye still seem to be there....

17 September 2020 9,905 2 View

What made English to become the language no. 1 in the world?

Why English in particular? Why not French, German, Arabic, Spanish, Chinese, or any other language?

27 July 2020 7,754 90 View