How can I identify the points that are poking out from a point cloud plot?

I have a cloud plot of data relating two important variables for an ecological analysis. I was defining the "abnormal class" as the data points that are >=20 for the Y-axis and >=20 for the...

22 September 2020 7,679 16 View

Why is the pressure slowly increasing when using a Hiplex Ca column?

We recently installed a Hiplex Ca Duo Column from agilent for carbohydrate determination. It was working fine until a week ago, when the pressure of the column started to increase very slowly. As...

03 September 2020 1,733 2 View

How do I detect primer dimers in an electrophoresis gel? and how to avoid them in a PCR reaction?

Hello! I am investigating plant-pollinator interactions by means of metabarcoding of pollen loads. The approach we want to use is dual-indexing in a two step PCR process. We are using four...

04 May 2020 7,455 6 View

All-against-all pairwise global alignments?

Hi all, I have a collection of nucleotide sequences corresponding to one functional domain of a hallmark gene of viruses. So in principle I am working with relatively-homogeneous functional...

28 March 2020 8,869 3 View

What Does Saint Thomas Say About Immigration?

This question is inspired in the article of yesterday by John Horvat II https://www.returntoorder.org/2014/07/saint-thomas-say-immigration-2/?pkg=rtoe0886 In looking at the debate over...

02 March 2020 2,870 9 View

2D-NMR DOSY peak intensities, what does that mean?

Dear All, I'm being doing DOSY experiments to determine molecular weight of polymers and i was wondering if the peak intensities shown in the spectrum for diffusion coefficients mean...

05 February 2020 6,387 5 View

No title

The effect of ENSO on weed populations dynamics is of key importance for better weed management or species conservation purposes.

31 January 2020 1,673 3 View

Is there a recommended article on RAMAN Spectroscopy and/or FTIR that also works as a guide?

Fellow scientists, I'd like to know if a test solution contains certain leachates, meaning that an extraction method I am developing works. Much appreciated beforehand.

13 January 2020 5,249 3 View

What is important to consider in an antibody titration, volume or concentration? Is it needed combined titration of Abs when they are used together?

In order to perform an antibody titration, I have found many different protocols with different recommendations, but most of them suggest to do dilutions in volume without taking the concentration...

21 November 2019 9,423 2 View

Digesting bioplastcs (PLA)?

I am carrying an experiment on which I chronically feed PLA particles to ascidians to check if they accumulate the material or are capable of digesting it. I am also trying with common PP and PET...

10 May 2019 9,370 5 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

Missing Data in Pretest and Post test- Experimental Research design?

Hello all, I am analyzing some pretest and post-test data that were given to evaluate knowledge of targeted vocabulary before and after the intervention. Pretest and post-test are identical and...

23 February 2021 9,400 7 View