What could be the cause of a severe drop in DO during diel oxygen measurements?

I am conducting a mesocosm experiment in 68 L rubbermaid totes examining the differences between gamma irradiated tailings waste (treatment) and non-irradiated tailings waste (control), we believe...

05 December 2016 8,460 2 View

Which user friendly software would you recommend for concatenation of DNA sequences?

I have eleven genes from the a segmented genome virus. I have multiple sequence alignment files and would like to concatenate the 11 genes together.

26 April 2016 5,441 2 View

Who can help me with collecting willow catkin flies in Belgium?

28 February 2016 3,861 1 View

Does anyone have information about social practices linked to irrigation canals?

14 January 2015 1,546 5 View

How do I get the age range (95% HPD) displayed at each node of an MCC tree in Figtree?

I have a maximum clade credibility tree drawn and I am trying to get the age range at each node but I don't seem to get it right. How do I get that? I have the node bars displayed but I need the...

17 December 2014 7,978 6 View

What is the simplest, user friendly but very reliable gene recombination detection software?

I need to determine whether any recombination events have occurred in genes I have sequenced.

25 June 2014 9,709 2 View

How can I get more than 100 hits when I do a nucleotide BLAST at the NCBI website?

I need to retrieve about 1000 hits from the GenBank to use for my analysis.

19 June 2014 1,762 4 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

Must a control group to be in the same semester that a experimental group for a study in education?

Hi everyone, I'm researching about mobile learning in higher education. Due to the small number of the students in the semesters, I cannot have a experimental and control group together. I'm...

22 February 2021 3,653 11 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Can I arbitrarily take a cycle number of 40 for the gene that was not expressed at all in qPCR results calculation?

I ran RT-qPCR for a control and a treated group and it appears that my gene of interest was not expressed at all in any of the subjects in the control group. So I was wondering if I could...

20 February 2021 6,243 10 View