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Best protocol for immunogold using araldite resin ?

Hello, We perfom Tokuyasu method (ultrathin cryo sectionning) very often to make immunogold experiments. This time, we need to make a PLT technique with K4M or LR white resin. Our results were...

14 February 2021 4,959 1 View

How to remove a sapphire disk from LR white resin embedding ?

Hello, We tried to do CLEM experiment on sapphire disk including cryo fixation (Leica ICE) and then cryo substitution using LR white resin. Once the resin is polymerized, we can't remove the...

13 January 2021 5,223 3 View

What do you suggest me as a low-cost electronic monitoring of honeybees using 3-5mg RFID tags?

We would like to control the honeybees' ID at the entrance of a flight tunnel. We would like to detect a honeybee in a cube of 10x10x10 cm3 in front of the tunnel door while flying, and thus...

17 December 2020 3,464 2 View

What are the competencies to put forward in Higher Education to prepare students to evolve in a world where IA is ubiquituous?

15 December 2020 6,350 4 View

Is it possible to invert a PLSR model, i-e to predict X based on Y?

There are many tools to build a PLSR model to predict a response variable Y based on a multivariate predictive variable X (reflectance spectra for example). My question is the following: once we...

06 December 2020 3,096 11 View

Have you ever included two last authors in the co-authorship of a publication?

Hello, As you must know, it is now sometimes possible to have several co-first authors in the co-authorship of a scientific publication, when two persons led the paper and had equal contribution...

21 September 2020 2,995 5 View

How does one find constants of the motion for a chaotic flow?

I'm reviewing a lot of papers where the authors take a 3-D autonomous chaotic system (think Lorenz) and add a fourth variable bidirectionally coupled to the other three and then report its unusual...

04 May 2020 3,785 33 View

Device abstraction for navigation in VR ?

Hello everyone The UMI3D Consortium's working group dedicated to embodiment is currently looking for a device agnostic way to manage navigation in Collaborative Virtual Environment (CVE). Are you...

08 April 2020 4,951 3 View

Redundancy analysis (RDA) order variables change result, why?

Hi everyone. I am in the process of making RDAs between faunistic and environmental tables. What I don't understand is that depending on the order in which I place my environmental variables...

29 March 2020 2,179 5 View

How to prepare fish (whole) in order to send it for analysis?

Hi, I have to collect fish, blend it, dry it and send it to a laboratory in order to have analysis of the fish composition. I need a whole fish, and I was wondering if there is a method to...

25 June 2019 1,884 2 View

Why at farmer level Cow/Buffalo are not done artificial insemination just after 2 month for yearly calving?

Physiologically in cow, oestrous heat again goes on the peak after 2 months but locally this is not observed and AI is after two months but done after at least 6 months.

17 February 2021 685 4 View

Possible reasons for high bioavailability after I.M and S.C. routes...?

What should be the possible reasons if we obtained more than 100% bioavailability of antibiotics (marbofloxacin) after I.M. and S.C. routes of administration in cattle species.

16 February 2021 971 4 View

Can anyone suggest which type of sensor input signals are more critical in flying aero engines for on-board diagnostics?

Can anyone suggest which type of sensor input signals are more critical in flying aero engines for on-board diagnostics? and high potential sensors for prognostics?

18 January 2021 4,087 1 View

How to determinate phosphatidylcholine content in cow milk?

I would like to determinate the phosphatidylcholine content in cow milk. We only have a Shimadzu Prominence HPLC (High Performance Liquid Chromatography) with a fluorescent detector for the...

18 January 2021 8,370 6 View

Which sampling techniques can be used for huge flying insects?

Tropidacris collaris is a grasshopper. Adults, which can reach more than 15 of length, are strong flyers and actually they resemble small birds or bats. Most of the time T. collaris is found in...

13 January 2021 3,735 5 View

How do i prove oocyte incompetence?

the is because the preliminary result of superovulation with (400-560 mcg) stimufol among unflushed cows did not yield any embryos 10 cows each were treated with graded doses of stimufol (400,...

13 January 2021 3,618 2 View

How would you extract bird flapping motion from a video?

Suppose you have a footage of a bird flying by flapping in a fixed frame recorded by a single camera. Is there any library/software which, given assumptions on distance, size and angle, could...

12 January 2021 7,614 3 View

The chemical and microbiological properties of camel milk do have a significant effect on shelf life of camel milk powder compared to cow milk powder?

I need to know effect of heat treatments that are made when making camel milk powder on chemical , microbiological properties and shelf life of camel milk powder compared to cow milk powder. Thanks

11 January 2021 7,097 12 View

What types of tubes should I use for allantoin assay?

Hi everyone, I am doing an allantoin assay in urine and all the protocols seem pretty vague. I am currently using this website which seems to be the most helpful:...

07 January 2021 8,023 3 View

Can you advise reference publications/standards on characterizing animal genetics research and development activities, and the outputs it generates?

I am doing semantic analysis of science and grey literature publications in the field of animal genetics and breeding. I have a standard dictionary but I am not sure if it captures the state of...

31 December 2020 4,924 3 View