How much sperm is conveyed in beaver during ejaculation?

Is there any knowledge about beaver ejaculation? How many sperm cells are conveyed and how many of them will survive in female and how many will actually reach the egg? Are the eggs in both tubes...

06 July 2018 8,157 0 View

Do I need permission to collect invertebrates from Gran Canaria?

I am going to Gran Canaria and planning to collect some invertebrates. Do I need permission for that and what should I do for getting the permission? I will collect for natural history museum of...

31 December 2016 6,498 16 View

Would you please identify those freshwater aquarium species?

09 October 2016 4,012 8 View

Do you know good database for bird synonyms?

I am searching for good database or reference to use for finding bird synonyms. This far eol.org is been a bit helpful but maybe there is better source for that?

06 July 2016 3,665 8 View

Can you identify those fish?

Please help me identify those fish. My oppinion 1-3 Taurulus bubalis 4-5 Cyclopterus lumpus

05 June 2016 1,771 7 View

What species of Mollusca are these specimens?

That species of Mollusca was found from lake Viljandi (https://www.google.ee/maps/@58.3483153,25.6106634,14z?hl=en). This summer. The measurements of shell are shell height 4,5mm shell width...

11 December 2014 555 13 View

I probably found a Mesodinium species with strong apical spine. Has anyone seen something like this before?

Mesodinium with apical spine.

10 November 2013 5,027 6 View

Does anybody have experience with breeding three-spined stickleback in aquarium?

I am interested in breeding three-spined stickelback in aquarium. I want it to last at least a year. Does anybody have experience? Is it possible on room temperature, what they eat, how to find...

01 January 1970 8,602 5 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

01 March 2021 8,087 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 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 culture mouse pheochromocytoma cells (MPC)?

Hi Everyone, Has anyone here worked with MPC cell line? Any tips or tricks? I am just venturing into cell biology and any advice on this topic would be highly appreciated. Thank you so much. Niusha

22 February 2021 3,891 2 View

I can detect my protein but the encoding DNA sequence has stop codons within. Should I ignore the stop codons?

I constructed a synthetic DNA library (scFv, VH-VL orientation) with a 3' reporter and 8x histag. I cloned and expressed this gene following which I performed an ELISA. The ELISA results suggested...

19 February 2021 7,006 5 View

What is the best temperature to coat an ELISA plate?

Hello, I want to control the temperature of my ELISA plate during incubations to get consistent results. In general, what is the best temperature to coat the plate with antibody? I have been...

16 February 2021 2,377 7 View

How to show in a scientific paper format the post-hoc test of 4 variables involved, when 3 by 3 variables are significant?

In a study involving 4 variables (species(2x), temperature(2x), nutrients(2x) and light(3x)), 3 by 3 variables, for example, "species", "temperature" and "nutrients" are significant. I end up with...

15 February 2021 8,018 2 View

Kinetics of Enzyme production in Recombinant E Coli?

Hello, I am trying to find kinetic information (such as rate of enzyme production etc.) on the expression of taq polymerase in E-Coli after inserting a recombinant plasmid. Any help would be...

12 February 2021 1,386 3 View

Is there a way to tell based on appearance which protein crystal should diffract the best?

I have had unheard of success with protein crystallography lately from a super successful protein expression and purification batch. I have attained a lately reproducible vast amount of crystals...

09 February 2021 5,155 5 View