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

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 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

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

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

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Is IMPACT FACTOR justified in case of Taxonomy?

There is huge pressure of getting good impact factor on scholars now a days. On the other hand Taxonomy is a very dry subject and the concerned papers can only get citation in same group of organism.

26 February 2021 5,851 1 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Where can I find raw quantitative datasets on ecosystem services?

I'm an Undergraduate student on the search for a research topic which has to involve any ecosystem service(s) and a response to environmental change. I'm looking for raw quantitative data sets (I...

19 February 2021 5,911 2 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View