How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

Where can I find a reliable and updated methodology related with the design of spiral heat exchangers?

I need to design an spiral heat exchanger, buy I don't know what reference or bibliography (preferably a book) should I consult in order to get an updated and reliable methodology related with...

14 February 2021 7,910 3 View

Failed Chromatograms on HPLC-ESI Orbitrap?

Hello fellow researchers, I recently have a problem with an HPLC coupled to an Orbitrap mass analyzer. I usually use some protein mix to make sure the equipment is ready to separate and read...

09 February 2021 3,595 8 View

RWP1 growing in RPMI medium?

Hello everyone, Has anyone try to culture the normal prostate RWPE-1 cell line in RPMI medium supplemented with foetal bovine serum? There's some articles available but neither describe details...

08 February 2021 6,455 1 View

Can anyone recommend me a NMR Handbook?

Hi, I've been searching for a NMR Handbook with 29Si chemical shifts information but I can't find one. Also I've tried to find an online database with that kind of info but I have no lucky. Can...

02 February 2021 307 3 View

Which aqueous solution should I test to make positive NPs stable to get mayor zeta potential +40 mV?

Hi, I need to find the correct media to make my positive charge NPs stable in an aqueous media. I have tried different solutions at different pH but the zeta potential does not increase more than...

21 January 2021 6,490 6 View

Do you know any available open-source data on animal behavior for model validation?

In my research related to monitoring the cow behavior with help of sensors I have a permanent and principal problem with the data for model validation. I tried to find some available open-source...

26 December 2020 8,197 2 View

Jellyfish as food?

We are investigating the acceptance of jellyfish-based food dishes in Latin America. If you are interested in the topic, please fill out the anonymous survey at the following link. Thanks in...

06 December 2020 4,266 2 View

Do you know any free clinical Covid19 database available?

Hello, everybody. I would like to apply machine learning techniques to clinical data of patients with Covid19. However, I can not find any clinical database of Covid patients, do you know any...

02 December 2020 706 8 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Helicoverpa armigera eggs are not hatching in lab condition, why?

Dear RG friends, I am providing a complete H. armigera diet for larvae and maintaining the eggs in the growth chamber as well as in-room conditions. But since three months, eggs laid from the...

21 January 2021 5,546 32 View

Can any one suggest the name of Litchi insect/predator?

Is it a type of Ambush bug or what? Thanks

14 January 2021 9,381 3 View

Which is the most recent and updated classification of Class: Insecta?

Based on the many publications from several decades, we came across many classifications of Insects. Among them which one is more updated and approved classification that can be used for research,...

05 January 2021 3,668 9 View

How can we say a species of insects got extinct?

02 January 2021 4,232 10 View

Santolina species, wax moth and bees?

Expect a savage answer and being reported to ResearchGate Admin if your answer clearly shows you did not read the whole question and you are scamming the points system by answering with an...

12 December 2020 4,413 7 View

Can we DNA barcode dry Museum insect specimens?

I am an student of entomological field, I am interested to work on DNA barconding of beetles, I have some fresh collection and some Museum specimens as well. I am not much clear that whether...

30 November 2020 7,248 14 View

What is the optimum Wolbachia population that can significantly affect dengue cases in densely populated provinces in the country?

I am working on a paper that looks into the dynamics of the spread of Wolbachia and its potential impact on dengue transmission, particularly in the Philippines.

29 October 2020 6,723 3 View

Preserving mites in a mixture of ethanol and propylene glycol?

Ethanol and propylene glycol are both used to preserve mites, and each have their drawbacks (i.e., evaporation and specimen distortion). Some people add a small amount of glycerol to vials of...

08 October 2020 9,516 6 View

What solvents can be used to dilute the Lepidopteran defence droplets (scoli glandular secretions from lepidopteran larvae)?

I am trying to analyse the chemical profile of defensive droplets from the lepidopteran larvae (T Trypanophora semihyalina ). when i collected and tried to dilute in the hexane and acetone the...

23 September 2020 2,994 3 View