Does anyone know about research on dragonfly dyes?

More Matteo Ruocco's questions See All

How to calculate stress at the cross section of spherical particles within a matrix?

Hi all, I am currently working on some background calculations before I start a new project related to metal matrix particulate composites. I am trying to find a way to calculate the stress at...

19 February 2021 8,503 3 View

Posthoc test after two-way ANOVA (two factors with two levels)?

Hi everyone, I was wondering if runnig a posthoc test regardeless of a significant interaction might make sense. I have prepared a dataset with obviously invented data but which can help to the...

02 February 2021 8,061 1 View

How can I use amylase enzyme to digest molluscan tissue before DNA extration?

Hi, I have a problem with a hight contet of mucopolysaccharides in some molluscan samples. I tried different DNA extration procolols but I can't already remove all the molecules that inhibit PCR...

01 January 2021 8,900 3 View

Will the spread of the new SARS-Cov-2 strain affect the efficacy of mRNA-based vaccines?

Recent studies have highlighted the isolation of a new strain of SARS-Cov-2. Could the new discovery compromise the effectiveness of the vaccination campaign ???

21 December 2020 7,516 4 View

Metasurface S parameter measure setup. How to do that?

Hi. I want to simulate the S mesurament setup of a metasurface. I took an horn antenna and simulated it's gain at my frequency. The I placed one on a side and the second on the opposite side....

16 October 2020 2,714 3 View

Is temperature measurement really useful as a screening measure for COVID-19?

The measurement of the temperature at the entrance to some structures or hospitals is a universally adopted measure in prevention strategies. There are two questions: considering the high number...

31 August 2020 5,843 12 View

Which could be a good DL technique for tracking an object and check for his integrity?

Hello everyone, I'm working on a computer vision project in which I need to detect in real time a moving object and check whether is still integer or not. Images will be supplied from a 4K...

05 August 2020 2,460 2 View

After the shocking case of George Floyd, should the physical restraint techniques used in the police and psychiatric settings be recoded?

George Floyd's case shocked the world. Physical restraint is a method used by the police but also in the management of psychiatric patients who pose a danger to themselves or others. In your...

10 June 2020 1,331 9 View

Can the political orientation of a medical / scientific journal editor influence scientific choices?If so, it'is morally and ethically acceptable?

Donald Trump's statements and the political opinion that publishers, especially American publishers, had of him profoundly indicated the editorial lines of the main scientific newspapers. Most...

10 June 2020 8,913 15 View

How to model in Arena Rockwell that all entities must clear their tails at the end of the simulation?

I am modeling the flow of visitors during a working day in a museum. The main problem is that I don't know how to model in Arena Rockwell the fact that all entities must clear the queue at the end...

20 February 2020 9,457 1 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Where can I find life cycle inventory or assessment of non woven materials?

Dear network, I am looking for the LCA or LCI or at least the energy balances of the non woven fabrics process for my master project, in specific for natural fibers, yet I have found...

02 March 2021 9,662 1 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

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 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 accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 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

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Ravi Kant Upadhyay

Dragonfly Orange, tuna blood" dye, cochineal dye are cochineal extract, Carminic acid is extracted from the female cochineal insects, food dyes from bugs, Lac dye. from Laccifer lacca, Various species of Kermes scale insects, especially Kermes ilicis (syn. Coccus ilicis or Kermococcus vermilis) of the Coccoidea superfamily; colonizers of certain oak species, especially the kermes oak (Quercus coccifera).

Tukaram Vithalrao Sathe

Red cotton bug and dusky cotton bug (Hemiptera) always stain the cotton fiber. They have importance from the view point of dye. Cochineal scale is well known for insect dye for food and drinks.