Is there some sort of classification of simple algebras with color involution?

If $A$ is a G-graded algebra then one can define on it a color involution, i.e. a bijective linear map preserving the grading such that the image of a product of two homogeneous elements is...

24 September 2020 5,416 3 View

Electrochemistry in Organic chemistry, Book article review?

Hello, I'm starting a new project that involve the use of Electrochemistry in organic synthesis. For this reason i'm searching for a book to have an introduction on the topic as also some review...

30 November 2019 3,789 4 View

Stable plant miRNAa as qPCR normalizers for Taqman Advance protocol?

We are going to use custom TaqMan TM Advanced miRNA Assays for microRNA quantification experiments in plants. These assays are not compatible with the use of U6 snRNA as a reference internal...

02 November 2017 4,545 2 View

How do I measure / evaluate / report about the learning effect of repeated time measurements?

I conducted an experiment with 80 subjects, each of them performing 50 trials. I measured the time (in seconds) needed to accomplish each trial. Trial-after-trial, every subject has the tendency...

11 December 2016 9,145 6 View

Issue with protein overexpression?

Hi, I am using a lentiviral vector to over express a protein in AML cells. I have cloned the flag-gene into the EIFalfa-MCS-SV40 vector. When I use this vector to simply transfect 293 cells, I can...

06 October 2016 903 3 View

ChIP-qPCR: same volume or same DNA concentration?

21 September 2016 4,154 4 View

How many votes are needed in a study based on Paired Comparison?

I am running a study involving N=100 items that subjects will compare, side-by-side, and declare the preferred one. This process is known as Paired (or Pairwise)...

14 July 2016 8,120 3 View

Chip-seq. IgG and IPs have the same DNA concentration?

Hello, I'm doing a Chip-seq experiment and I've noticed that after DNA extraction I have the same amount of DNA in my negative control (IgG) and in the IPs? Do you think it's still worth it to...

27 February 2016 8,127 6 View

How to assess the sexual maturation in wild long-lived birds when ageing is not possible??

Cloacal or blood sampling? What kind of biomarker (testosterone, sperm, other hormones...) ?

24 March 2015 893 6 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 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

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

What are the harmful effects of these extreme rainfall on the health of newborns? What are the reasons for that?

Extreme rainfall associated with climate change is causing harm to babies in some of the most forgotten places.

01 March 2021 5,647 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

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View

How do I transfect a large plasmid into PC12 cells with nerve growth factor (NGF) receptor?

I have a large 16 kb plasmid, which I need to transfect into PC12 cells. Lipofectamin 2000 didn't work and with GFP alone the transfection rate is very low. I also tried the neon invitrogen...

25 February 2021 6,635 5 View

Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View